In various examples, conductor management within a medical device includes providing a flexible substrate. The flexible substrate includes at least one routing feature. A hole is cut in the at least one routing feature with a cutting device. A conductor is passed through the hole in the at least one routing feature. The routing feature acts to maintain and manage positioning of the conductor within the medical device. The medical device, in some examples, includes a lead, with the conductor connected to an electrode of the lead after being routed through the routing feature.
A61B 5/273 - Connexion des cordons, des câbles ou des fils conducteurs aux électrodes
H02G 1/08 - Méthodes ou appareils spécialement adaptés à l'installation, entretien, réparation, ou démontage des câbles ou lignes électriques pour poser les câbles, p. ex. appareils de pose sur véhicule à travers des tubes ou conduits, p. ex. tringles ou fil de tirage pour pousser ou tirer
2.
ACTIVE MEDICAL DEVICE HAVING A LOW-PROFILE SOCKET HEADER FOR CONNECTION TO A LEAD
An (AMD) assembly has a device housing closed by a lid. A PCB assembly in the device housing is connected to a power source. A feedthrough connected to the lid has active terminal pins brazed into respective via holes in an insulator. A polymeric cover connected to the device housing has an axial recess extending along a cover lower surface. The proximal electrical contact portion of a lead comprises an M number of polymeric carriers, each supporting an electrical contact and contacting an N number of lead insulators in an alternating sequence extending distally from a proximal lead end. With the lead proximal electrical contact portion received in the cover axial recess and the cover received in a lid recess, an electrical contact supported by a carrier is connected to an active terminal pin connected to the PCB assembly and the electrical contact is connected to a lead electrode.
A kinetically limited micro-scale diffusion bond between sapphire as an optically transparent insulating ceramic and titanium as an opaque conductive metal is provided. The diffusion bond is formed using an electromagnetic beam emanating from a Gaussian-Bessel laser. The micro-scale diffusion bond has a thickness that is greater than 1 micron, and preferably greater than 4 microns, with a weld width that is greater than 45 microns. Importantly, the diffusion bond is spaced from and intermediate undisturbed portions of the optically transparent ceramic and the opaque conductive metal.
C04B 37/02 - Liaison des articles céramiques cuits avec d'autres articles céramiques cuits ou d'autres articles, par chauffage avec des articles métalliques
B32B 15/04 - Produits stratifiés composés essentiellement de métal comprenant un métal comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique
4.
EMI Filter Feedthrough Having A Single-Sided Oxide-Resistant System Ground Opposite A System Ground To An Oxidized Surface
A filtered feedthrough comprises an insulator sealed in a ferrule opening. A terminal pin sealed in an insulator via hole has a first end that extends outwardly beyond an insulator device side. A filter capacitor has a square- or rectangularly-shaped dielectric supporting interleaved active and ground electrode plates. A passageway extending through the dielectric has an internal metallization. An external metallization is contacted to opposed longitudinal sides of the dielectric outer surface. The capacitor ground electrode plates extend to the opposed external metallizations. The outwardly extending terminal pin end is connected to the internal metallization in the dielectric passageway which in turn is connected to the active electrode plates. A conductive material connects the capacitor external metallization at one of the longitudinal sides to an oxide-resistant surface on the ferrule while the other external metallization is connected to an oxidized surface of the ferrule.
A61N 1/375 - Aménagements structurels, p. ex. boîtiers
H01G 4/35 - Condensateurs de traversée ou condensateurs antiparasites
H01R 13/40 - Fixation des pièces de contact dans ou sur un socle ou un boîtierIsolement des pièces de contact
H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
H01R 13/66 - Association structurelle avec des composants électriques incorporés
H01R 13/719 - Association structurelle avec des composants électriques incorporés spécialement adaptée à la haute fréquence, p. ex. avec des filtres
5.
Active Medical Device Having A Dual Band Antenna Configuration Inside A Non-Conductive Enclosure Connected To A Metallic Sleeve Housing An Electrochemical Cell
An active medical device (AMD) has a low-profile ceramic housing that contains a communication antenna/inductive charging coil assembly that is hingedly connected to a PCB assembly. The communication antenna/inductive charging coil assembly is folded over the PCB assembly to provide a compact communication antenna/inductive charging coil assembly/PCB assembly that fits inside the ceramic housing. The ceramic housing does not interfere with communication/charging fields that are transmitted between external devices and the AMD when it is implanted in body tissue or worn outside the body. The PCB assembly draws power from a power source housed in a titanium sleeve connected to a distal end of the ceramic housing. A lead is connected to a feedthrough connector assembly at a proximal end of the ceramic housing. Electrodes of the lead are energized by the PCB assembly to provide electrical stimulation to body tissue, sense biological signals from body tissue, or both.
An active medical device (AMD) has a low-profile ceramic housing that contains a communication antenna/inductive charging coil assembly that is hingedly connected to a PCB assembly. The communication antenna/inductive charging coil assembly is folded over the PCB assembly to provide a compact communication antenna/inductive charging coil assembly/PCB assembly that fits inside the ceramic housing. The ceramic housing does not interfere with communication/charging fields that are transmitted between external devices and the AMD when it is implanted in body tissue or worn outside the body. The PCB assembly draws power from a power source connected to a distal end of the ceramic housing. A lead is connected to a feedthrough connector assembly at a proximal end of the ceramic housing. Electrodes of the lead are energized by the PCB assembly to provide electrical stimulation to body tissue, sense biological signals from body tissue, or both.
In various examples, an implantable medical device includes an enclosure including an enclosure wall. A feedthrough is sealingly disposed within an opening of the enclosure wall. A backfill feature includes a backfilling channel open to an exterior of the implantable medical device. A welding protection channel is fluidly coupled to the backfilling channel and extends from the backfilling channel to an interior of the enclosure. The backfilling channel and the welding protection channel fluidly couple the exterior of the implantable medical device and the interior of the enclosure for fluid backfilling of the interior of the enclosure. The backfilling channel is configured to be sealed with welding of the backfilling channel after fluid backfilling of the interior of the enclosure. The welding protection channel is configured to catch metallic projections from the welding of the backfilling channel to inhibit the metallic projections from entering the interior of the enclosure.
An electrochemical cell has an electrode assembly comprising an anode active material contacted to the inner surface of a casing, and a cathode active material contacted to a current collector connected to the terminal pin of a GTMS supported by the casing. The cathode is wrapped in a separator having a first lateral edge and a spaced-apart second lateral edge. The separator first and second lateral edges extend from a lower edge to an opposite upper edge. With the separator wrapped around the cathode, a lower portion of the separator first and second lateral edges and the lower edge are sealed to cover a cathode lower end, and an upper portion of the separator first and second lateral edges and the upper edge are sealed to cover a cathode upper end, but the first and second lateral edges in an intermediate section are unsealed. An electrolyte activates the electrode assembly.
H01M 50/107 - Boîtiers primairesFourreaux ou enveloppes caractérisés par leur forme ou leur structure physique ayant une section transversale courbe, p. ex. ronde ou elliptique
H01M 50/152 - Couvercles caractérisés par leur forme pour des cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
H01M 50/179 - Dispositions pour introduire des connecteurs électriques dans ou à travers des boîtiers adaptées à la forme des cellules pour des cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
In various examples, a wireless charger for an implantable medical device includes a housing including an interior. The housing includes a bottom side configured to face the patient proximate the location of the implantable medical device. A rechargeable battery is disposed within the interior of the housing. The battery is configured to store electricity. A coil is disposed proximate the bottom side of the housing and electrically coupled to the battery. The coil is configured to inductively couple with the implantable medical device with the charger placed against the patient proximate the location of the implantable medical device in order to inductively charge the implantable medical device using electricity from the battery.
A medical tray that is useful for containing an implantable medical device is a body cavity is described. The medical tray is particularly useful in a craniometry and comprises a ceramic insert joined to a metallic main tray. The main tray comprises a base plate extending to an upstanding main sidewall. An inlet extends inwardly through the main sidewall and into the base plate with the inlet having an inlet peripheral edge. The ceramic insert comprises a planar plate portion extending to an upstanding insert sidewall. The insert has an insert peripheral edge having an insert shape that is conformal with an inlet shape of the inlet peripheral edge. A metallization is supported on the insert peripheral edge and a braze joins the metallization supported on the insert peripheral edge to the inlet peripheral edge.
A filtered feedthrough comprises an insulator sealed in a ferrule opening. A terminal pin sealed in an insulator via hole has a first end that extends outwardly beyond an insulator device side. A filter capacitor adjacent to the insulator device side has a dielectric supporting interleaved active and ground electrode plates. A passageway extending through the dielectric has an internal metallization. An external metallization is on a terminated portion as opposed to an unterminated portion of the dielectric outer surface. The capacitor ground electrode plates extend to the external metallization at the terminated portion, but they do not extend to the unterminated outer surface portion. The outwardly extending terminal pin end is connected to the internal metallization in the dielectric passageway which in turn is connected to the active electrode plates. A conductive material connects the capacitor external metallization at the terminated dielectric outer surface portion to a system ground.
In various examples, an electrode for a medical device is described. The medical device includes a lead. The electrode includes a tubular ring formed from a conductive material. The ring extending around a perimeter of the electrode. The ring defines a void within the ring. The void is configured to accept overmolded material of the lead therein to anchor the electrode within the lead. An electrode surface is associated with the ring. The electrode surface is configured to contact and stimulate tissue of a patient with the lead implanted within the patient.
A self-centering ceramic washer is positioned between a feedthrough and a filter circuit board. The washer has openings through which first and second terminal pins extend. A first opening has an inner arcuate portion contacting the first terminal pin and an outer perimeter portion exposing the braze sealing the terminal pin to the insulator. A second opening has an inner arcuate portion contacting the second terminal pin and an outer perimeter portion exposing the braze sealing the terminal pin to the insulator. In an imaginary configuration with the first and second washer openings superimposed one on top of the other, the cumulative arcuate distance of the inner arcuate portions about one of the terminal pins, subtracting overlap, results in a gap between the superimposed washer openings that is less than a diameter of the first and second terminal pins so that the washer is prevented from lateral movement.
A61N 1/375 - Aménagements structurels, p. ex. boîtiers
F16B 43/00 - Rondelles ou dispositifs équivalentsAutres dispositifs de support pour têtes de boulons ou d'écrous
H01G 4/35 - Condensateurs de traversée ou condensateurs antiparasites
H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
H01R 13/533 - Socles ou boîtiers conçus pour l'emploi dans des conditions extrêmes, p. ex. haute température, rayonnements, vibrations, environnement corrosif, pression
Self-centering ceramic washer that prevents misalignment when positioned between a feedthrough and an EMI filter capacitor or a circuit board supporting EMI filter capacitors for a medical device
A self-centering ceramic washer is positioned between a feedthrough and a filter circuit board. The washer has openings through which first and second terminal pins extend. A first opening has an inner arcuate portion contacting the first terminal pin and an outer perimeter portion exposing the braze sealing the terminal pin to the insulator. A second opening has an inner arcuate portion contacting the second terminal pin and an outer perimeter portion exposing the braze sealing the terminal pin to the insulator. In an imaginary configuration with the first and second washer openings superimposed one on top of the other, the cumulative arcuate distance of the inner arcuate portions about one of the terminal pins, subtracting overlap, results in a gap between the superimposed washer openings that is less than a diameter of the first and second terminal pins so that the washer is prevented from lateral movement.
A61N 1/375 - Aménagements structurels, p. ex. boîtiers
F16B 43/00 - Rondelles ou dispositifs équivalentsAutres dispositifs de support pour têtes de boulons ou d'écrous
H01G 4/35 - Condensateurs de traversée ou condensateurs antiparasites
H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
H01R 13/533 - Socles ou boîtiers conçus pour l'emploi dans des conditions extrêmes, p. ex. haute température, rayonnements, vibrations, environnement corrosif, pression
Self-centering polymeric washer that prevents misalignment when positioned between a feedthrough and a circuit board supporting EMI filter capacitors for a medical device
A self-centering washer is positioned between a feedthrough and a filter circuit board. The washer has openings through which first and second terminal pins extend. A first opening has an inner arcuate portion contacting the first terminal pin and an outer perimeter portion exposing the braze sealing the terminal pin to the insulator. A second opening has an inner arcuate portion contacting the second terminal pin and an outer perimeter portion exposing the braze sealing the terminal pin to the insulator. In an imaginary configuration with the first and second washer openings superimposed one on top of the other, the cumulative arcuate distance of the inner arcuate portions about one of the terminal pins, subtracting overlap, results in a gap between the superimposed washer openings that is less than a diameter of the first and second terminal pins so that the washer is prevented from lateral movement.
A61N 1/375 - Aménagements structurels, p. ex. boîtiers
F16B 43/00 - Rondelles ou dispositifs équivalentsAutres dispositifs de support pour têtes de boulons ou d'écrous
H01G 4/35 - Condensateurs de traversée ou condensateurs antiparasites
H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
H01R 13/533 - Socles ou boîtiers conçus pour l'emploi dans des conditions extrêmes, p. ex. haute température, rayonnements, vibrations, environnement corrosif, pression
In various examples, a component for a medical device is described. The component includes a conductor wire including a connection portion. An electrode is formed from a conductive tube. The conductive tube is compressed at least partially around the connection portion of the conductor wire to at least partially surround and couple to the connection portion.
In various examples, a header of an implantable device includes a first header portion and a second header portion at least partially disengageable from the first header portion. In a closed configuration, the first header portion is fully engaged with the second header portion, and in an open configuration, the first header portion is at least partially disengaged from the second header portion. At least one bore within the header is sized and shaped to accommodate a proximal end of a lead. The bore is split substantially longitudinally to form a first bore portion and a second bore portion. With the proximal end of the lead disposed within the bore and a positioning feature interacting with a lead feature, at least one lead contact aligns with at least one header contact to allow the at least one lead contact to electrically couple to the at least one header contact.
A case-neutral electrochemical cell has an electrode assembly comprising a separator positioned between an anode and a cathode housed inside a casing. The casing supports a co-axial glass-to-metal seal (GTMS) comprising an inner insulating glass hermetically sealed to a terminal pin and to the inner annular surface of an inner ferrule. An outer insulating glass is hermetically sealed to the outer annular surface of the inner ferrule and the inner annular surface of an outer ferrule. The outer ferrule is secured to an opening in the casing. Two methods are described for manufacturing a co-axial GTMS depending on the melting temperatures of the inner and outer insulating glasses. Then, one of the anode and the cathode is connected to the terminal pin and the other of the anode and the cathode is connected to the inner ferrule. An electrolyte is provided in the casing to activate the electrode assembly.
H01M 50/188 - Éléments de scellement caractérisés par la position des éléments de scellement les éléments de scellement étant arrangés entre le couvercle et la borne
H01M 50/562 - Bornes caractérisées par le matériau
19.
Anisotropic conductive electrical connection from a conductive pathway through a ceramic casing to a circuit board electronic component housed inside the casing
An AIMD includes a ceramic base closed with a ceramic lid, both cooperatively separating body fluid and device sides. The lid and circuit board both have active and conductive pathways. A circuit board has active and ground conductive pathways. An anisotropic conductive layer disposed between the lid device side and the circuit board has a first thickness where a first conductive particle is in electrical contact with the lid and the circuit board active conductive pathways electrically connected to the active terminal of an electronic component on the circuit board, a second thickness where a second conductive particle is in electrical contact with the lid and the circuit board ground conductive pathways electrically connected to the ground terminal of the electronic component. The anisotropic conductive layer has a third, greater thickness where no conductive particles are in electrical contact with the lid and circuit board conductive active and ground pathways.
A ceramic reinforced metal composite (CRMC) comprising a composition composite as an interpenetrating network of at least two interconnected composites is described. The interpenetrating networks comprise a ceramic matrix composite (CMC) and a metal matrix composite (MMC). The composition composite is particularly useful as an electrically conductive pathway extending through the insulator or ceramic body of a hermetically sealed component, for example, a feedthrough in an active implantable medical device (AIMD).
An active medical device has a feedthrough comprising a ferrule sealed to a ceramic insulator supporting a short terminal pin and a long terminal pin that are connected to electronic components in the device housing. A silicone insulator residing in the ferrule abutting the ceramic insulator has first and second openings that house first and second metallic housings nesting respective coil springs. The metallic housings connected to the respective short and long terminal pins are axially aligned in the silicon insulator. A lead connector connected to a strain-relief for a lead supports a co-axial lead pin having electrically isolated center and circumferential outer conductors. When the lead connector/strain-relief subassembly is connected to the feedthrough, the center and circumferential conductors of the lead pin are electrically connected to the coil springs nested in the first and second metallic housings connected to the short and long terminal pins of the feedthrough.
A case-neutral electrochemical cell has an electrode assembly comprising a separator positioned between an anode and a cathode housed inside a casing. The casing supports a co-axial glass-to-metal seal comprising an inner insulating glass hermetically sealed to a terminal pin and to the inner surface of a first or inner ferrule. An outer insulating glass is hermetically sealed to the outer surface of the inner ferrule and the inner surface of a second or outer ferrule, and the outer ferrule is secured to an opening in the casing. Then, one of the anode and the cathode is connected to the terminal pin and the other of the anode and the cathode is connected to the first or inner ferrule. An electrolyte is provided in the casing to activate the electrode assembly.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
A feedthrough terminal pin connector assembly for an active implantable medical device (AIMD) includes first and second terminal pin connectors, each comprising a sidewall having an exterior surface spaced from an interior surface defining a connector opening extending along a longitudinal axis. At least a first portion of the sidewall is electrically conductive. An electrically conductive compliant structure is supported by the electrically conductive portion of the sidewall in each of the first and second connector openings. A common housing contains the first and second terminal pin connectors with an insulative material electrically isolating the first and second electrically conductive sidewall portions from each other. The common housing is configured to be supported on a circuit board having at least a first and a second electrical circuits with the first and second electrically conductive portions being electrically connected to the respective first and second electrical circuits.
H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
A61N 1/375 - Aménagements structurels, p. ex. boîtiers
H01G 4/35 - Condensateurs de traversée ou condensateurs antiparasites
H01R 13/426 - Fixation de manière démontable par un dispositif de retenue indépendant et élastique porté par le socle ou par le boîtier, p. ex. par un collier
H01R 13/719 - Association structurelle avec des composants électriques incorporés spécialement adaptée à la haute fréquence, p. ex. avec des filtres
24.
Co-axial glass-to-metal seal for a case-neutral electrochemical cell
A case-neutral electrochemical cell has an electrode assembly comprising a separator positioned between an anode and a cathode housed inside a casing. The casing supports a co-axial glass-to-metal seal comprising an inner insulating glass hermetically sealed to a terminal pin and to the inner annular surface of an inner ferrule. An outer insulating glass is hermetically sealed to the outer annular surface of the inner ferrule and the inner annular surface of an outer ferrule, and the outer ferrule is secured to an opening in the casing. Then, one of the anode and the cathode is connected to the terminal pin and the other of the anode and the cathode is connected to the first or inner ferrule. An electrolyte is provided in the casing to activate the electrode assembly.
A case-neutral electrochemical cell has an electrode assembly comprising a separator positioned between an anode and a cathode housed inside a casing. The casing supports a co-axial glass-to-metal seal comprising an inner insulating glass hermetically sealed to a terminal pin and to the inner surface of a first or inner ferrule. An outer insulating glass is hermetically sealed to the outer surface of the inner ferrule and the inner surface of a second or outer ferrule, and the outer ferrule is secured to an opening in the casing. Then, one of the anode and the cathode is connected to the terminal pin and the other of the anode and the cathode is connected to the first or inner ferrule. An electrolyte is provided in the casing to activate the electrode assembly.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
07 - Machines et machines-outils
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
chemical components for polymer conformal surface coatings, including parylene dimer and adhesion promoter coating application machines, namely vacuum depositor machines for the application of polymers, including parylene polymer custom coating application for others, namely, conformal chemical coating of parts, including parylene conformal coating of parts
27.
Auxiliary Strain Relief Member For The Lead Of An Active Implantable Medical Device
An active implantable medical device (AIMD) assembly has a medical device housing containing an electrical power source connected to control circuitry, and a header assembly connected to the device housing. The header assembly supports a plurality of co-axially aligned terminal blocks that are in open communication with a header opening. A conventional strain relief member is connected to the header assembly at the header opening. A number of different auxiliary strain relief devices are described. The auxiliary strain relief devices connect to the conventional strain relief member to help reduce tension and stress on a lead after the AIMD assembly is implanted in a body and the lead electrodes are connected to body tissue.
In various examples, a method of making a guidewire is described. The method includes placing a polymer jacket over a core wire. The core wire includes a first portion having a first profile and a second portion having a second profile. The first profile is smaller than the second profile. Heat is applied to the polymer jacket and the core wire to reflow the polymer jacket and fuse the polymer jacket to the core wire, wherein the polymer jacket forms a layer of substantially uniform thickness along a length of the core wire. In some examples, a guidewire made using the method is also described.
In various examples, an audible frequency generating system for use in an implantable device including a housing of the implantable device. The housing includes at least one wall formed to at least partially surround an interior of the housing. A frequency generator is configured to produce an audible sound within the interior of the housing. At least one conductor is electrically coupled to the frequency generator. A fastening element secures the conductor to the at least one wall of the housing, wherein the frequency generator is constrained within the housing by the at least one conductor secured to the at least one wall of the housing, such that the frequency generator includes a floating configuration relative to the housing.
The high-voltage and/or high-frequency pulse dielectric breakdown strength (DBS) of an implantable medical device is increased by strategically positioning insulation materials on or adjacent to the external surfaces of a filter capacitor. Dielectric breakdown strength is further increased by adding polymeric or ceramic nanoscale metal oxide insulative powders to the insulation materials.
A self-centering washer is positioned between the feedthrough and filter capacitor of a filtered feedthrough. The washer has openings through which first and second terminal pins extend. A first opening has an inner arcuate portion contacting the first terminal pin and an outer perimeter portion exposing the braze sealing the terminal pin to the insulator. A second opening has an inner arcuate portion contacting the second terminal pin and an outer perimeter portion exposing the braze sealing the terminal pin to the insulator. In an imaginary configuration with the first and second washer openings superimposed one on top of the other, the cumulative arcuate distance of the inner arcuate portions about one of the terminal pins, subtracting overlap, results in a gap between the superimposed washer openings that is less than a diameter of the first and second terminal pins so that the washer is prevented from lateral movement.
In various examples, a guidewire for temporary pacing of tissue includes an elongate core wire and a coil disposed along at least a portion of a length of the core wire. The coil is disposed radially outwardly from and around the core wire, wherein a core axis and a coil axis are substantially aligned. At least one electrode is disposed along the guidewire and includes an uninsulated portion of the core wire disposed within an electrode section of the coil. A spacing between adjacent windings of the electrode section of the coil is configured to allow a stimulation pulse to travel from the uninsulated portion of the core wire, through the spacing between the adjacent windings of the electrode section, and to the tissue in order to stimulate the tissue.
An electrochemical cell has a cylindrically-shaped casing tube with at least first and second lithium sheets swaged onto its inner surface. The first lithium sheet has respective spaced apart first right and left edges, and the second lithium sheet has spaced apart second right and left edges. The first and second right edges and the first and second left edges of the swaged first and second lithium sheets are adjacent to but spaced apart from each other by about 0.5° to about 1° about the inner circumference of the cylindrically-shaped casing tube. A novel process for swaging the first and second lithium sheets onto the inner surface of the casing tube is also described.
H01M 50/107 - Boîtiers primairesFourreaux ou enveloppes caractérisés par leur forme ou leur structure physique ayant une section transversale courbe, p. ex. ronde ou elliptique
H01M 4/134 - Électrodes à base de métaux, de Si ou d'alliages
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/583 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
H01M 50/188 - Éléments de scellement caractérisés par la position des éléments de scellement les éléments de scellement étant arrangés entre le couvercle et la borne
34.
High-voltage electrical insulation for use in active implantable medical devices circuit board connectors
A circuit board for an active implantable medical device (AIMD) has a circuit board land connected to at least one electrical circuit. A hermetic feedthrough terminal pin connector for the AIMD includes an electrical insulator hermetically sealed to an opening of an electrically conductive ferrule. A terminal pin of the feedthrough extends outwardly beyond the insulator. A terminal pin connector has an electrically conductive connector housing that is connected to the circuit board land by an electrical connection material. At least one electrically conductive prong supported by the connector housing contacts and compresses against the feedthrough terminal pin to thereby make a removable electrical connection between the circuit board and the terminal pin. An insulative material loaded with electrically insulative nanoparticles coats at least a portion of the sidewall of the connector housing and the electrical connection material connecting the connector housing to the circuit board land.
H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
A61N 1/375 - Aménagements structurels, p. ex. boîtiers
H01G 4/35 - Condensateurs de traversée ou condensateurs antiparasites
H01R 13/426 - Fixation de manière démontable par un dispositif de retenue indépendant et élastique porté par le socle ou par le boîtier, p. ex. par un collier
H01R 13/719 - Association structurelle avec des composants électriques incorporés spécialement adaptée à la haute fréquence, p. ex. avec des filtres
35.
Elastomeric Gasket Contacting The Inner Surface Of The Casing Lid Of A Pulse Dischargeable Lithium Electrochemical Cell
A pulse dischargeable electrochemical cell, preferably of a Li/SVO couple, is described. To help prevent lithium clusters from bridging to the terminal pin extending below the casing lid and connected to the cathode current collector tab, an elastomeric gasket directly contacts the inner surface of the lid. The elastomeric gasket is preferably a unitary member comprising an O-ring gasket portion that contacts the sealing glass of the glass-to-metal seal (GTMS), and a sheet-shaped gasket portion connected to the O-ring gasket portion and that contacts the inner surface of the lid. The GTMS does not have a ferrule. Instead, the sealing glass seals directly to the lid and to the terminal pin. The elastomeric gasket resides between the lid and an insulator compartment, which is described in co-assigned U.S. Pat. No. 10,629,862 to Roy et al.
H01M 50/188 - Éléments de scellement caractérisés par la position des éléments de scellement les éléments de scellement étant arrangés entre le couvercle et la borne
H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires
H01M 4/54 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques d'argent
36.
Header Assembly For Electrically And Mechanically Connecting An Active Medical Device To A Lead
An active medical device has a feedthrough with at least two terminal pins that are connected to electronic components in the device housing. A lead connector is connected to a strain-relief device for a lead. The lead connector supports at least two connector pins that are detachably connected to the device terminal pins to thereby connect the device electronic components to the lead electrodes. The device housing has a length extending along a longitudinal axis, and secondary axes of the terminal pins connected to the connector pins are aligned parallel to the longitudinal axis. The feedthrough also has spaced-apart distally extending arms with detents, and the lead connector has spaced-apart lateral recesses. With the detents of the feedthrough arms received in the lateral recesses of the lead connector, the medical device is detachably connected to the strain-relief device and the lead.
In various examples, a component for a medical device is described. The component includes a conductor wire including a connection portion. An electrode is formed from a conductive tube. The conductive tube is compressed at least partially around the connection portion of the conductor wire to at least partially surround and couple to the connection portion.
An active medical device has a feedthrough with at least two terminal pins that are connected to electronic components in the device housing. A lead connector is connected to a strain-relief device for a lead. The lead connector supports at least two connector pins that are detachably connected to the device terminal pins to thereby connect the device electronic components to the lead electrodes. The device housing has a length extending along a longitudinal axis, and secondary axes of the terminal pins connected to the connector pins are aligned parallel to the longitudinal axis. The feedthrough also has a hub that extends distally from the body fluid side end surface of the ferrule. The hub has an opening. The lead connector has an inlet with inlet opening. A screw in the hub and inlet openings secures the medical device to the lead connector, the strain-relief device, and the lead.
An active medical device has a feedthrough with at least two terminal pins that are connected to electronic components in the device housing. A lead connector is connected to a strain-relief device for a lead. The lead connector supports at least two proximally-facing C-shaped inserts with an annular spring nested therein that are detachably connected to the device terminal pins to thereby connect the device electronic components to the lead electrodes. The device housing has a length extending along a longitudinal axis, and secondary axes of the terminal pins connected to the C-shaped inserts/annular springs are aligned parallel to the axis with imaginary extensions of the connector axes extending into the device housing.
A novel wound electrode assembly for a lithium oxyhalide electrochemical cell is described. The electrode assembly comprises an elongate cathode of an electrochemically non-active but electrically conductive carbonaceous material disposed between an inner elongate portion and an outer elongate portion of a unitary lithium anode. That way, lithium faces the entire length of the opposed major sides of the cathode. This inner anode portion/cathode/outer anode portion configuration is rolled into a wound-shaped electrode assembly that is housed inside a cylindrically-shaped casing. A cylindrically-shaped sheet-type spring centered in the electrode assembly presses outwardly to limit axial movement of the electrode assembly. In one embodiment, all the non-active components, except for the cathode current collector, which is nickel, are made of stainless-steel. This provides the cell with a low magnetic signature without adversely affecting the cell's high-rate capability.
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
A61K 31/44 - Pyridines non condenséesLeurs dérivés hydrogénés
A61K 31/4439 - Pyridines non condenséesLeurs dérivés hydrogénés contenant d'autres systèmes hétérocycliques contenant un cycle à cinq chaînons avec l'azote comme hétéro-atome du cycle, p. ex. oméprazole
A61K 31/444 - Pyridines non condenséesLeurs dérivés hydrogénés contenant d'autres systèmes hétérocycliques contenant un cycle à six chaînons avec l'azote comme hétéro-atome du cycle, p. ex. amrinone
A61K 31/4545 - Pipéridines non condensées, p. ex. pipérocaïne contenant d'autres systèmes hétérocycliques contenant un cycle à six chaînons avec l'azote comme hétéro-atome du cycle, p. ex. pipampérone, anabasine
A61K 31/497 - Pyrazines non condensées contenant d'autres hétérocycles
A61K 31/501 - PyridazinesPyridazines hydrogénées non condensées et contenant d'autres hétérocycles
A61K 31/505 - PyrimidinesPyrimidines hydrogénées, p. ex. triméthoprime
A61K 31/506 - PyrimidinesPyrimidines hydrogénées, p. ex. triméthoprime non condensées et contenant d'autres hétérocycles
A61K 45/06 - Mélanges d'ingrédients actifs sans caractérisation chimique, p. ex. composés antiphlogistiques et pour le cœur
C07D 213/75 - Radicaux amino ou imino, acylés par un acide carboxylique, par l'acide carbonique ou par leurs analogues du soufre ou de l'azote, p. ex. des carbamates
C07D 401/04 - Composés hétérocycliques contenant plusieurs hétérocycles comportant des atomes d'azote comme uniques hétéro-atomes du cycle, au moins un cycle étant un cycle à six chaînons avec un unique atome d'azote contenant deux hétérocycles liés par une liaison directe de chaînon cyclique à chaînon cyclique
C07D 401/12 - Composés hétérocycliques contenant plusieurs hétérocycles comportant des atomes d'azote comme uniques hétéro-atomes du cycle, au moins un cycle étant un cycle à six chaînons avec un unique atome d'azote contenant deux hétérocycles liés par une chaîne contenant des hétéro-atomes comme chaînons
C07D 417/06 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes de soufre et d'azote comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant deux hétérocycles liés par une chaîne carbonée contenant uniquement des atomes de carbone aliphatiques
C07D 417/08 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes de soufre et d'azote comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant deux hétérocycles liés par une chaîne carbonée contenant des cycles alicycliques
C07D 417/14 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes de soufre et d'azote comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant au moins trois hétérocycles
H01M 4/134 - Électrodes à base de métaux, de Si ou d'alliages
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/38 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'éléments simples ou d'alliages
H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de composés inorganiques autres que les oxydes ou les hydroxydes, p. ex. sulfures, séléniures, tellurures, halogénures ou LiCoFyEmploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p. ex. phosphates, silicates ou borates
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
H01M 50/131 - Boîtiers primairesFourreaux ou enveloppes caractérisés par les propriétés physiques, p. ex. la perméabilité au gaz, les dimensions ou la résistance à la chaleur
H01M 50/138 - Boîtiers primairesFourreaux ou enveloppes adaptés à des cellules spécifiques, p. ex. à des cellules électrochimiques fonctionnant à haute température
H01M 50/148 - Couvercles caractérisés par leur forme
H01M 50/186 - Éléments de scellement caractérisés par la position des éléments de scellement
H01M 50/188 - Éléments de scellement caractérisés par la position des éléments de scellement les éléments de scellement étant arrangés entre le couvercle et la borne
An electrical power source comprises a casing made by diffusion bonding an intermediate ceramic ring to a titanium base plate and a titanium top ring. An anode housed in the resulting open-ended container is electrically connected to the base plate. A separator is positioned on the anode. Separately, a cathode is electrically connected to a titanium lid. The lid fitted on the titanium top ring opposite the intermediate ceramic ring is welded to the top ring to close the casing. An electrolyte filled into the casing through a fill port in the lid activates the anode/cathode assembly. The fill port is then hermetically sealed. Gold pads are individually contacted to the base plate and the lid, which serve as opposite polarity terminals for the power source.
In various examples, an enclosure for an implantable medical device includes a first enclosure portion and a second enclosure portion, wherein at least the first enclosure portion and the second enclosure portion are joined together to form the enclosure. At least one feature is configured for attachment of at least one component of the implantable medical device to the enclosure. The at least one feature is integrally formed with the enclosure. In some examples, the enclosure is formed by machining.
An implantable neural stimulation device is provided, comprising a body containing stimulation electronics, and a battery to provide stimulation energy, a lid, coupled to the body, the lid configured to at least partially seal the body and a header coupled to the body of the device. The header comprises a contact assembly electrically coupled to the stimulation electronics via at least one feedthrough wire extending through the lid, the contact assembly configured to connect to a stimulation lead to deliver the stimulation energy from the battery under control by the stimulation electronics, a charge coil configured to charge the battery, and a support component configured to support the charge coil. The support component is supported in position by the contact assembly.
A61N 1/372 - Aménagements en relation avec l'implantation des stimulateurs
A61N 1/375 - Aménagements structurels, p. ex. boîtiers
44.
Miniature Electrical Energy Power Source Housed In A Casing Formed From An Intermediate Ceramic Ring Micro-Bonded To Upper And Lower Plate-Shaped Ceramic Wafers
An electrical energy power source comprises a casing made by micro-bonding an upper ceramic wafer and a lower ceramic wafer to the opposed surfaces of a ceramic ring. The upper and lower ceramic wafers have respective first and second conductive pathways extends therethrough. A first current collector supporting a first active material layer contacts the upper ceramic wafer and the first conductive pathway, and a second current collector supporting a second, opposite polarity active material layer contacts the lower ceramic wafer and the second conductive pathway. A separator resides between the first and second active materials, and an electrolyte filled into the casing through a fill port activates the active materials. The first and second conductive pathways serve as opposite polarity terminals for the power source.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 50/184 - Éléments de scellement caractérisés par leur forme ou leur structure
H01G 11/82 - Fixation ou assemblage d’un élément capacitif dans un boîtier, p. ex. montage d’électrodes, de collecteurs de courant ou de bornes dans des récipients ou des encapsulations
H01G 11/70 - Collecteurs de courant caractérisés par leur structure
H01G 11/28 - Électrodes caractérisées par leur structure, p. ex. multicouches, selon la porosité ou les caractéristiques de surface agencées ou disposées sur un collecteur de courantCouches ou phases entre les électrodes et les collecteurs de courant, p. ex. adhésifs
H01G 11/84 - Procédés de fabrication de condensateurs hybrides ou EDL ou de leurs composants
45.
Method for making insertable medical devices with low profile composite coverings
A heart valve replacement device and methods of manufacturing same are provided. The heart valve replacement device includes a substrate and a low-profile composite covering in conformal contact with the substrate and suturelessly attached to the substrate. The low-profile composite covering includes a textile base layer and a thermoplastic polymer coating integrated with the textile base layer. The thermoplastic polymer coating or select portions thereof are substantially fluid impermeable.
A61L 33/06 - Utilisation de matériaux macromoléculaires
B29C 43/18 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés en incorporant des parties ou des couches préformées, p. ex. moulage par pressage autour d'inserts ou sur des objets à recouvrir
H01M 4/583 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/136 - Électrodes à base de composés inorganiques autres que les oxydes ou les hydroxydes, p. ex. sulfures, séléniures, tellurures, halogénures ou LiCoFy
H01M 4/134 - Électrodes à base de métaux, de Si ou d'alliages
H01M 10/0568 - Matériaux liquides caracterisés par les solutés
H01M 10/0569 - Matériaux liquides caracterisés par les solvants
H01M 4/587 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx pour insérer ou intercaler des métaux légers
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
47.
Method for providing a three-dimensional printed feedthrough for an implantable medical device
A method for manufacturing a ceramic substrate by a 3D-printing process is described. The method comprises operating a 3D-printer to print a green-state ceramic body having a height extending to spaced apart first and second end surfaces and at least one via extending at least part-way along the height of the green-state ceramic body from the first end surface toward the second end surface. Then, the green-state ceramic body is sintered to provide the ceramic substrate with the at least one via. In cross-section, the at least one via has a square-shaped via with rounded corners.
In various examples, a method of establishing a communication session between an external device and an implantable medical device is described. The method includes generating at the external device a first private key and a first public key. A start session order is sent over a long-range communication channel. Evidence of physical proximity is sent from the external device to the implantable medical device over a short-range communication channel. A second private key and a second public key are generated at the implantable medical device. A first shared key is generated by the implantable medical device using the first public key and the second private key. A second shared key is generated by the external device using the second public key and the first private key. The first and second shared keys are used to encrypt and decrypt one or more messages between the external device and the implantable medical device.
G16H 40/67 - TIC spécialement adaptées à la gestion ou à l’administration de ressources ou d’établissements de santéTIC spécialement adaptées à la gestion ou au fonctionnement d’équipement ou de dispositifs médicaux pour le fonctionnement d’équipement ou de dispositifs médicaux pour le fonctionnement à distance
A61N 1/372 - Aménagements en relation avec l'implantation des stimulateurs
G06F 21/62 - Protection de l’accès à des données via une plate-forme, p. ex. par clés ou règles de contrôle de l’accès
G16H 40/63 - TIC spécialement adaptées à la gestion ou à l’administration de ressources ou d’établissements de santéTIC spécialement adaptées à la gestion ou au fonctionnement d’équipement ou de dispositifs médicaux pour le fonctionnement d’équipement ou de dispositifs médicaux pour le fonctionnement local
49.
Clinical static strip magnet of alternating polarities to prevent inadvertent actuation of magnet-mode in an active implantable medical device
The present invention changes the magnet-mode of an active implantable medical device (AIMD) using a static strip magnet comprising at least a first, second and third magnet. The electronic circuits of the AIMD have been programmed to register when the static strip magnet has been swiped across the AIMD so that when the magnetic field-detection sensor detects a defined north and south polarity sequence of the first, second and third magnets, the electronic circuits have been programmed to enter into magnet-mode with electrical stimulation therapy of the body tissue and/or electrical sensing of biological signals from the body tissue being suspended, maintained in a preset mode, or placed in a programmed mode.
An active implantable medical device (AIMD) has an alumina housing supporting at least two electrodes. A printed circuit board (PCB) assembly resides inside the housing. Two sintered platinum-containing pathways extend through the housing thickness from the electrodes supported on the housing body fluid side surface to a housing device side surface. A device side end of each of the two platinum-containing pathways is in electrical continuity with an electrical contact supported on the PCB to energize the electrodes for providing stimulation therapy to a patient or for sensing biological signals from the patient.
An inductive charging antenna for charging the power source of an active implantable medical device (AIMD) is described. The charging antenna is supported on the body fluid side of the feedthrough insulator, on the device side of the insulator or it is embedded inside the insulator. The charging antenna is connected to electronic circuits housed inside the medical device to charge the power source so that the device can deliver electrical stimulation to a patient and receive sensed biological signals from body tissue, among other functionalities. If the charging antenna is supported on the insulator body fluid side, it is made from a biocompatible material such as platinum. However, if the charging antenna is embedded inside the feedthrough insulator or is supported on the device side of the insulator, it can be made from a less expensive material that is not biocompatible, for example, copper.
A miniature electrochemical cell of a secondary chemistry having a total volume that is less than 0.5 cc is described. Before the present invention, miniature secondary electrochemical cells have been known to experience undesirable open circuit voltage discharge during their initial 21-day aging period. It is believed that electrolyte permeating through the cathode active material and an intermediate carbonaceous coating contacting the titanium base plate of the casing is the source of the undesirable discharge. To ameliorate this, aluminum is contacted to the inner surface of the base plate inside the casing. While aluminum is resistant to the corrosion reaction that is believed to be the mechanism for degraded open circuit voltage in miniature secondary electrochemical cells containing lithium, it is not biocompatible. This means that titanium is still a preferred material for the casing parts including the base plate that might be exposed to body fluids, and the like.
A ceramic reinforced metal composite (CRMC) comprising a composition composite as an interpenetrating network of at least two interconnected composites is described. The interpenetrating networks comprise a ceramic matrix composite (CMC) and a metal matrix composite (MMC). The composition composite is particularly useful as an electrically conductive pathway extending through the ceramic body of a hermetically sealed component, for example, a feedthrough in an active implantable medical device (AIMD).
A wet tantalum electrolytic capacitor containing a cathode, fluidic working electrolyte, and anode formed from an anodically oxidized sintered porous tantalum pellet is described. The pellet is formed from a pressed tantalum powder. The tantalum powder is formed by reacting a tantalum oxide compound, for example, tantalum pentoxide, with a reducing agent that contains a metal having an oxidation state of 2 or more, for example, magnesium. The resulting tantalum powder is nodular or angular and has a specific charge that ranges from about 9,000 μF*V/g to about 11,000 μF*V/g. Using this powder, wet tantalum electrolytic capacitors have breakdown voltages that ranges from about 340 volts to about 450 volts. This makes the electrolytic capacitors ideal for use in an implantable medical device.
An active implantable medical device (AIMD) is described. The AIMD has a rechargeable electrical energy power source connected to a PCB assembly for powering the medical device. The AIMD can sense biological signals from a patient, or it can have at least two electrodes that provide stimulation therapy to the patient. An inductive charging coil housed inside an elongate device enclosure is connected to the power source. The inductive charging coil has winds of an electrically conductive wire or tape that wrap around the PCB. The winds of the inductive charging coil have an upper wind portion residing above the PCB and a lower wind portion below the PCB. Opposed curved ends of the inductive charging coil winds are continuous with the upper and lower wind portions. This structure provides the inductive charging coil with a length aligned along a longitudinal axis of the PCB. In that manner, the inductive charging coil occupies a space otherwise not used in an elongate cylindrical enclosure for an AIMD.
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61N 1/05 - Électrodes à implanter ou à introduire dans le corps, p. ex. électrode cardiaque
H02J 50/12 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage inductif du type couplage à résonance
H02J 50/90 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique mettant en œuvre la détection ou l'optimisation de la position, p. ex. de l'alignement
56.
Three-dimensional printed feedthroughs for implantable medical devices
A ceramic subassembly manufactured by a 3D-printing process is described. The ceramic subassembly comprises a ceramic substrate having a sidewall extending to spaced apart first and second end surfaces. At least one via extends through the substrate from the ceramic substrate first end surface to the ceramic substrate second end surface. In cross-section, the via has a square-shape with rounded corners.
In various examples, a connector for an implantable medical device is configured to accept a lead therein and electrically couple to a lead contact of the lead. The connector includes a connector housing, which includes a bore portion including a bore hole therethrough. The bore hole includes a bore hole axis, the bore hole being sized and shaped to accept the lead within the bore hole. An attachment portion is coupled to the bore portion. The attachment portion includes an attachment hole within the attachment portion sized and shaped to accept a feedthrough wire within the attachment hole. The attachment hole includes an attachment hole axis offset from and non-parallel to the bore hole axis.
A61N 1/375 - Aménagements structurels, p. ex. boîtiers
A61N 1/05 - Électrodes à implanter ou à introduire dans le corps, p. ex. électrode cardiaque
H01R 13/187 - Broches, lames ou alvéoles ayant un ressort indépendant pour produire ou améliorer la pression de contact le ressort étant dans l'alvéole
H01R 24/58 - Contacts espacés le long de l'axe longitudinal d’engagement
58.
Miniature Electrochemical Cell Having A Casing Of A Conductive Plate Closing An Open-Ended Ceramic Container Having A Via Hole Supporting An Electrically Conductive Pathway
A miniature electrochemical cell having a volume of less than 0.5 cc is described. The cell casing comprises an open-ended ceramic container having a via hole providing an electrically conductive pathway extending through the container. A metal lid closes the open-end of the container. An electrode assembly housed inside the casing comprises an anode current collector deposited on an inner surface of the ceramic container in contact with the electrically conductive pathway in the via hole. An anode active material contacts the current collector and a cathode active material contacts the metal lid. A separator is disposed between the anode and cathode active materials. That way, the electrically conductive pathway serves as a negative terminal, and the lid, electrically isolated from the conductive pathway by the ceramic container, serves as a positive terminal. The negative and positive terminals are configured for electrical connection to a load.
H01M 50/548 - Bornes caractérisées par la position des terminaux sur les cellules sur des côtés opposés de la cellule
H01M 50/528 - Connexions électriques fixes, c.-à-d. non prévues pour être déconnectées
H01M 50/559 - Bornes adaptées aux cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
H01G 4/236 - Bornes pour traverser l'enveloppe, c.-à-d. traversée d'entrée
59.
Method For Providing A Substrate With Hermetic Vias For A Thin Film Electrochemical Cell Activated With A Solid Electrolyte And Housed In A Ceramic Casing
A method for providing a miniature electrochemical cell having a total volume that is less than 0.5 cc is described. The cell casing is formed by joining two ceramic casing halves together. One or both casing halves are machined from ceramic to provide a recess that is sized and shaped to contain the electrode assembly. The opposite polarity terminals are electrically conductive feedthroughs or pathways, such as of gold, and are formed by brazing gold into tapered via holes machined into one or both ceramic casing halves. The two ceramic casing halves are separated from each other by a metal interlayer, such as of gold, bonded to a thin film metallization layer, such as of titanium, that contacts an edge periphery of each ceramic casing half. A solid electrolyte of LiPON (LixPOyNz) is used to activate the electrode assembly.
A polymeric film cover assembly for isolating an electrochemical power source from the other components housed inside an implantable medical device is described. The cover assembly comprises a first shallow-formed shaped-cover of a polymeric film configured to cover a first portion of the exterior surface of the casing and a second shallow-formed shaped-cover of the polymeric film configured to cover a second portion of the exterior surface of the casing. With the first and second shaped-covers contacting the casing, the shaped-covers are connected to each other in an overlapping or butted relationship to substantially or completely cover the exterior surface area of the casing. The interlocking polyester shaped-covers are readily formable into the desired three-dimensional form factor of the casing of power source while maintaining a desirable film thinness.
Triple flip, clinical magnet multiple polarity and placement timed sensing to prevent inadvertent actuation of magnet-mode in an active implantable medical device
The present invention changes the magnet-mode of an active implantable medical device (AIMD) such that repeated application of a clinical magnet in a predetermined and deliberate time sequence will induce the AIMD to enter into its designed magnet-mode. In one embodiment, a clinical magnet is applied close to and over the AIMD and removed a specified number of times within a specified timing sequence. In another embodiment, the clinical magnet is applied close to and over the AIMD and flipped a specified number of times within a specified timing sequence. This makes it highly unlikely that the magnet in a portable electronic device, children's toy, and the like can inadvertently and dangerously induce AIMD magnet-mode.
A lead adapter for a patient treatment system comprises a housing having a plurality of inlets, each inlet being segregated from an immediately adjacent inlet by a housing intermediate wall. A plurality of electrical contact assemblies residing in the housing are electrically connected to a respective one of a plurality of electrical contact posts. Each contact post has an exposed terminal portion residing in one of the plurality of inlets. A header is movably secured to the housing to selectively open and close the housing. With the header in an open position, an implantable lead is movable into a longitudinally extending opening in the header. The header is then manipulatable into a closed position to move an electrical contact of the lead into contact with a respective one of the electrical contact assemblies electrically connected to a respective one of the electrical contact posts. That way, the electrical contacts of the implantable lead are in electrical continuity with an exposed terminal portion of a respective one of the electrical contact posts.
A capacitor having an anode of a pressed powder pellet is described. The pressed powder anode pellet has a contoured trough that extends inwardly into the height of the pellet from a peripheral edge of the pellet. A shaped anode wire has an embedded portion residing inside the pellet and an outwardly extending portion that is connected to the terminal pin of a feedthrough. The feedthrough is nested in the contoured trough. In order to prevent a crack from rendering the anode inoperable, the embedded portion of the anode wire is shaped to bridge the lateral extent of the contoured trough. Should a crack develop in the anode, the crack will intersect the embedded portion of the anode wire. As an embedded bridging wire structure, the crack in the anode pellet will not cause the shaped anode wire to break. Instead, the shaped anode wire provides electrical continuity from one side of the crack to the other so that the capacitor remains functional.
A miniature electrochemical cell of a primary or secondary chemistry with a total volume that is less than 0.5 cc is described. The cell casing comprises an annular sidewall connected to a base plate opposite an upper lid. A sealing glass forms a hermetic glass-to-ceramic seal with a dielectric material contacting a lower portion of the annular sidewall and a glass-to-metal seal with the base plate. Since the glass seals against three surfaces of the annular sidewall, which are the inner and outer sidewall surfaces adjacent to the lower edge, the glass seal is robust enough to withstand the heat generated when the lid is welded to the upper edge of the annular sidewall. The lid has a sealed electrolyte fill port that is axially aligned with an annulus residing between the inner surface of the annular sidewall and the electrode assembly.
In various examples, a method of conductor management within a medical device includes providing a flexible substrate. The flexible substrate includes at least one routing feature. A hole is cut in the at least one routing feature with a cutting device. A conductor is passed through the hole in the at least one routing feature. The routing feature acts to maintain and manage positioning of the conductor within the medical device. The medical device, in some examples, includes a lead, with the conductor connected to an electrode of the lead after being routed through the routing feature.
A61B 5/273 - Connexion des cordons, des câbles ou des fils conducteurs aux électrodes
H02G 1/08 - Méthodes ou appareils spécialement adaptés à l'installation, entretien, réparation, ou démontage des câbles ou lignes électriques pour poser les câbles, p. ex. appareils de pose sur véhicule à travers des tubes ou conduits, p. ex. tringles ou fil de tirage pour pousser ou tirer
66.
Dual separator design for medical implantable electrochemical cells
An electrochemical cell comprises a casing having an open- ended container closed by a lid. An anode and cathode are housed inside the casing. The cathode housed inside a primary separator envelope is electrically connected to a positive polarity terminal pin electrically isolated from the casing by a glass-to- The anode is electrically connected to the casing metal seal.
serving as a negative terminal. The primary separator enveloping the cathode is contained in a secondary separator comprising an open-ended bag-shaped member extending to an open annular edge. The open annular edge of the secondary separator resides between the cathode electrically connected to the terminal pin and the anode electrically connected to the casing. An electrolyte provided in the casing activates the anode and cathode.
H01M 50/46 - Séparateurs, membranes ou diaphragmes caractérisés par leur combinaison avec des électrodes
H01M 50/103 - Boîtiers primairesFourreaux ou enveloppes caractérisés par leur forme ou leur structure physique prismatique ou rectangulaire
H01M 50/188 - Éléments de scellement caractérisés par la position des éléments de scellement les éléments de scellement étant arrangés entre le couvercle et la borne
H01M 50/466 - Séparateurs, membranes ou diaphragmes caractérisés par leur forme en forme de U, de sac ou pliés
H01M 4/54 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques d'argent
H01M 4/583 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
H01M 4/587 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx pour insérer ou intercaler des métaux légers
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
A hermetic feedthrough terminal pin connector for an active implantable medical device (AIMD) includes an electrical insulator hermetically sealed to an opening of an electrically conductive ferrule. A feedthrough terminal pin is hermetically sealed to and disposed through the insulator, the feedthrough terminal pin extending outwardly beyond the insulator on the inside of the casing of the AIMD. A circuit board is disposed on the inside of the casing of the AIMD. A terminal pin connector includes: an electrically conductive connector housing disposed on the circuit board, wherein the connector housing is electrically connected to at least one electrical circuit disposed on the circuit board; and at least one electrically conductive prong supported by the connector housing, the at least one prong contacting and compressed against the feedthrough terminal pin, the at least one prong making a removable electrical connection.
H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
A61N 1/375 - Aménagements structurels, p. ex. boîtiers
H01G 4/35 - Condensateurs de traversée ou condensateurs antiparasites
H01R 13/426 - Fixation de manière démontable par un dispositif de retenue indépendant et élastique porté par le socle ou par le boîtier, p. ex. par un collier
H01R 13/719 - Association structurelle avec des composants électriques incorporés spécialement adaptée à la haute fréquence, p. ex. avec des filtres
68.
MEDICAL DEVICE INCLUDING SHAFT WITH FLAT WIRE COIL
In various examples, a shaft for an elongate medical device extends along a shaft length. The shaft includes a shaft axis, an outer surface, and an inner surface. The inner surface defines an inner lumen. A liner forms the inner surface of the shaft. A coil is disposed around and outwardly from the liner. The coil is formed from a flat wire. The flat wire includes a wire width and a wire height, wherein the wire height is greater than the wire width. The wire height extends substantially radially with respect to the shaft and the wire width extends substantially longitudinally with respect to the shaft. A jacket is disposed around and outwardly from the coil. The jacket forms the outer surface of the shaft.
The present invention relates to an oxyhalide electrochemical cell comprising an anode of a Group IA metal and a cathode of a composite material prepared from a first electrochemically active carbonaceous material and a second electrochemically non-active carbonaceous material. The cathode material of the present invention provides increased discharge capacity compared to traditional lithium oxyhalide cells. In addition, the cathode material of the present invention is chemically stable which makes it particularly useful for applications that require increased rate capability in extreme environmental conditions such as those found in oil and gas exploration.
H01M 4/583 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
H01M 4/133 - Électrodes à base de matériau carboné, p. ex. composés d'intercalation du graphite ou CFx
H01M 6/18 - Éléments avec électrolytes non aqueux avec électrolyte solide
H01M 10/0563 - Matériaux liquides, p. ex. pour éléments au Li-SOCl2
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 6/24 - Éléments comprenant deux électrolytes différents
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
A miniature electrochemical cell of a primary or secondary chemistry with a total volume that is less than 0.5 cc is described. The cell has a casing comprising an annular sidewall supported on a lower plate opposite an upper lid. The lid has a sealed electrolyte fill port that is axially aligned with an annulus residing between the inner surface of the annular sidewall and the electrode assembly. The fill port axially aligned with the annulus between the electrode assembly and the casing sidewall allows the casing to be filled with electrolyte using a vacuum filling process so that activating electrolyte readily wets the anode and cathode active materials and the intermediate separator.
H01M 50/188 - Éléments de scellement caractérisés par la position des éléments de scellement les éléments de scellement étant arrangés entre le couvercle et la borne
In various examples, a component for a medical device is described. The component includes a conductor wire including a connection portion. An electrode is formed from a conductive tube. The conductive tube is compressed at least partially around the connection portion of the conductor wire to at least partially surround and couple to the connection portion.
A lid assembly for an electrochemical cell comprises a plate-shaped lid having an opening and a glass-to-metal seal (GTMS) residing in the lid opening. The GTMS does not have a ferrule. Instead, the GTMS has a sealing glass that seals directly to a terminal pin and to the lid. The terminal pin has an enlarged diameter pin section contacted by the sealing glass and a first reduced diameter pin section extending axially outwardly from the enlarged diameter pin section. An electrochemical cell provided with the lid assembly is also described.
H01M 50/171 - Couvercles caractérisés par le procédé d’assemblage des boîtiers avec des couvercles avec des agents adhésifs ou de scellement
H01M 50/188 - Éléments de scellement caractérisés par la position des éléments de scellement les éléments de scellement étant arrangés entre le couvercle et la borne
H01M 50/148 - Couvercles caractérisés par leur forme
73.
Ground electrical path from an MLCC filter capacitor on an AIMD circuit board to the ferrule of a hermetic feedthrough
An EMI/energy dissipating filter for an active implantable medical device (AIMD) comprises a first gold braze sealing an insulator to the ferrule of a glass-to-metal seal (GTMS) and a lead wire that is sealed in a passageway through the insulator by a second gold braze. A circuit board is disposed adjacent to the insulator. A two-terminal chip capacitor disposed adjacent to the circuit board has an active end metallization connected to its active electrode plates and a ground end metallization connected to its ground electrode plates. A ground electrical path extends from the ground end metallization of the chip capacitor, through a circuit board ground plate disposed on or within the circuit board, and to the ferrule. An active electrical path extends from the active end metallization of the chip capacitor to the lead wire of the GTMS.
H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques
H03H 1/00 - Détails de réalisation des réseaux d'impédances dont le mode de fonctionnement électrique n'est pas spécifié ou est applicable à plus d'un type de réseau
H05K 5/00 - Enveloppes, coffrets ou tiroirs pour appareils électriques
H01R 13/7195 - Association structurelle avec des composants électriques incorporés spécialement adaptée à la haute fréquence, p. ex. avec des filtres avec des filtres plans avec ouvertures pour les contacts
H03H 7/01 - Réseaux à deux accès sélecteurs de fréquence
H01G 4/40 - Combinaisons structurales de condensateurs fixes avec d'autres éléments électriques non couverts par la présente sous-classe, la structure étant principalement constituée par un condensateur, p. ex. combinaisons RC
H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés
74.
Header connection system for implantable medical device
In various examples, a header of an implantable device includes a first header portion and a second header portion at least partially disengageable from the first header portion. In a closed configuration, the first header portion is fully engaged with the second header portion, and in an open configuration, the first header portion is at least partially disengaged from the second header portion. At least one bore within the header is sized and shaped to accommodate a proximal end of a lead. The bore is split substantially longitudinally to form a first bore portion and a second bore portion. With the proximal end of the lead disposed within the bore and a positioning feature interacting with a lead feature, at least one lead contact aligns with at least one header contact to allow the at least one lead contact to electrically couple to the at least one header contact.
A miniature electrochemical cell of a primary or secondary chemistry with a total volume that is less than 0.5 cc is described. The cell has a casing comprising an annular sidewall supported on a lower plate opposite an upper lid. The lid has a sealed electrolyte fill port. At least one electrolyte channel in the inner surface of the lid extends radially from the fill port and outwardly beyond an outer peripheral edge of the current collector. A current collector contacts an inner surface of the lid with a first electrode active material contacting the current collector. An opposite polarity active material contacts the lower plate. A dielectric material coats the lower open end of the annular sidewall and a portion of the inner surface of the sidewall. A glass seals the dielectric material to the lower plate. An electrolyte activates the electrode assembly.
A device that is implantable in body tissue of a human or animal. The device is comprised of a header comprising at least one terminal adapted for removable connection to a lead and an open ended case closed by a plate to form a housing. The housing is comprised of a surrounding edge wall joined to a first side wall and a second side wall opposed to the first side wall. At least a first suture port extends through the edge wall and the second side wall but not the first side wall at an upper edge region of the housing. A second suture port may extend through the surrounding edge wall and the second side wall but not the first side wall in a similar manner. A third suture port may extend through the header. The three suture ports may define a triangular attachment configuration.
A miniature electrochemical cell of a primary or a secondary chemistry with a total volume that is less than 0.5 cc is described. The cell has a casing comprising an annular sidewall supported on a lower plate opposite an upper closure plate. The upper plate has a sealed electrolyte fill port. A current collector having an opening aligned with the fill port contacts an inner surface of the upper plate. An anode active material contacts the lower plate, and a cathode active material contacts the upper closure plate. A dielectric material coats the lower open end of the annular sidewall and a portion of the inner surface of the sidewall. A glass seals the dielectric material to the lower plate. An electrolyte contacts the electrode assembly. The cathode active material contacting the current collector has an opening aligned with the current collector opening and the electrolyte fill port.
H01M 50/00 - Détails de construction ou procédés de fabrication des parties non actives des cellules électrochimiques autres que les piles à combustible, p. ex. piles hybrides
H01M 50/107 - Boîtiers primairesFourreaux ou enveloppes caractérisés par leur forme ou leur structure physique ayant une section transversale courbe, p. ex. ronde ou elliptique
H01M 50/289 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs
H01M 6/50 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien, p. ex. pour le maintien de la température de fonctionnement
H01M 50/50 - Connexions conductrices de courant pour les cellules ou les batteries
78.
Apparatus and method for cardiac signal noise detection and disposition based on physiologic relevance
An apparatus comprises an input configured to receive electrocardiogram (ECG) data detected by a patient monitoring device, the ECG data containing a physiologic signal and one or more segments of noise within the ECG data. A scrubber comprises a plurality of scrubbing modules each configured to process the ECG data and noise in a manner differing from other scrubbing modules. The scrubber is configured to filter the one or more noise segments that overlap with the physiologic signal, and consolidate the ECG data to eliminate the one or more noise segments that are non-overlapping with the physiologic signal. An output is configured to output scrubbed ECG data.
H01M 10/0567 - Matériaux liquides caracterisés par les additifs
H01M 10/0569 - Matériaux liquides caracterisés par les solvants
H01M 10/0568 - Matériaux liquides caracterisés par les solutés
H01M 4/134 - Électrodes à base de métaux, de Si ou d'alliages
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 4/54 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques d'argent
H01M 4/02 - Électrodes composées d'un ou comprenant un matériau actif
80.
Electrically conductive coating applied to an oxidizable surface of an AIMD ferrule or housing to provide an oxide-resistant connection to an EMI filter capacitor, an EMI filter circuit or AIMD electronic circuits and components
A hermetically sealed feedthrough assembly for an active implantable medical device having an oxide-resistant electrical attachment for connection to an EMI filter, an EMI filter circuit board, an AIMD circuit board, or AIMD electronics. The oxide-resistant electrical attachment, including an oxide-resistant coating layer that is disposed on the device side surface of the hermetic seal ferrule over which an optional ECA stripe may be provided. The optional ECA stripe may comprise one of a thermal-setting electrically conductive adhesive, an electrically conductive polymer, an electrically conductive epoxy, an electrically conductive silicone, an electrically conductive polyamide, or an electrically conductive polyimide, such as those manufactured by Ablestick Corporation. The oxide-free coating layer may comprise one of gold, platinum, palladium, silver, iridium, rhenium, rhodium, tantalum, tungsten, niobium, zirconium, vanadium, and combinations or alloys thereof. As used herein, the oxide-free coating layer is not limiting and as will be taught, in addition to sputtering, there are many other methods of applying a proud oxide-free surface on either an AIMD ferrule or an AIMD housing.
A wet tantalum electrolytic capacitor containing a cathode, fluidic working electrolyte, and anode formed from an anodically oxidized sintered porous tantalum pellet is provided. The pellet is formed from a pressed tantalum powder. The tantalum powder is formed by reacting a tantalum oxide compound, for example, tantalum pentoxide, with a reducing agent that contains a metal having an oxidation state of 2 or more, for example, magnesium. The resulting tantalum powder is nodular or angular and has a specific charge that ranges from about 11,000 μF*V/g to about 14,000 μF*V/g. Using this powder, wet tantalum electrolytic capacitors have breakdown voltages that ranges from about 250 volts to about 400 volts. This makes the electrolytic capacitors ideal for use in an implantable medical device.
In various examples, a component is for use in an implantable medical device. The component includes a pin including a first material attached to a lead including a second material different from the first material of the pin. At least a portion of the lead includes a channel in which at least a portion of the pin sits, the channel including a channel opening defined at least partially by opposing first and second channel sides extending a channel length. At least a first joint is formed along at least a portion of the first channel side. The first joint includes the second material of the lead deformed to at least partially close the channel opening to retain the pin within the channel to attach the lead to the pin. In some examples, the first material includes molybdenum and the second material includes aluminum.
B23K 26/323 - Assemblage tenant compte des propriétés du matériau concerné faisant intervenir des parties faites de matériaux métalliques dissemblables
B23K 103/18 - Matériaux comportant des matières différentes
H01M 50/176 - Dispositions pour introduire des connecteurs électriques dans ou à travers des boîtiers adaptées à la forme des cellules pour des cellules prismatiques ou rectangulaires
B23K 103/20 - Alliages ferreux et aluminium ou ses alliages
B23K 101/36 - Dispositifs électriques ou électroniques
83.
ECA oxide-resistant connection to a hermetic seal ferrule for an active implantable medical device
A hermetically sealed feedthrough assembly for an active implantable medical device having an oxide-resistant electrical attachment for connection to an EMI filter, an EMI filter circuit board, an AIMD circuit board, or AIMD electronics. The oxide-resistant electrical attachment, including an oxide-resistant sputter layer 165 is disposed on the device side surface of the hermetic seal ferrule over which an ECA stripe is provided. The ECA stripe may comprise one of a thermal-setting electrically conductive adhesive, an electrically conductive polymer, an electrically conductive epoxy, an electrically conductive silicone, an electrically conductive polyimides, or an electrically conductive polyimide, such as those manufactured by Ablestick Corporation. The oxide-free electrical attachment between the ECA stripe and the filter or AIMD circuits may comprise one of gold, platinum, palladium, silver, iridium, rhenium, rhodium, tantalum, tungsten, niobium, zirconium, vanadium, and combinations or alloys thereof.
H01G 13/00 - Appareils spécialement adaptés à la fabrication de condensateursProcédés spécialement adaptés à la fabrication de condensateurs non prévus dans les groupes
H01B 19/04 - Traitement des surfaces, p. ex. application de revêtements
In various examples, an apparatus is configured for subcutaneously inserting an implantable device within a patient. The apparatus includes a dilator portion including a dilator including a dilator length. The dilator portion is configured to separate tissue to create a subcutaneous pocket within the patient sized and shaped to accommodate an implantable device within the subcutaneous pocket. A sheath portion includes a sheath sized and shaped to accommodate the dilator within a sheath lumen. The sheath is configured to accommodate an antenna of the implantable device with the dilator removed from within the sheath. The sheath includes a sheath length that is at least substantially as long as an antenna length. The sheath is configured to separate to allow removal of the sheath around the implantable device to remove the sheath from and leave the implantable device within the subcutaneous pocket within the patient.
A current collector for an electrochemical cell is described. Unlike conventional current collector designs, the current collector does not have an unperforated perimeter frame completely bordering or surrounding a perforated interior region. Instead, only that portion of the current collector adjacent to the connector tab is unperforated. Otherwise, perforations extend directly to the perimeter edge.
H01M 4/74 - Grillage ou matériau tisséMétal déployé
86.
Miniature electrochemical cell having a casing of a metal container closed with a ceramic plate having a via hole supporting a platinum-containing conductive pathway
A miniature electrochemical cell having a volume of less than 0.5 cc is described. The cell casing has a ceramic substrate, preferably of alumina, that is part of a metal-containing feedthrough formed by co-firing a metallic paste in a via hole extending through a green state ceramic. The sintered feedthrough serves as a header assembly that is then joined to an open-ended container by a gold-braze to thereby provide the cell casing. The metallic container serves as a terminal for one of the electrodes, for example the anode, while the metal fill material resulting from sintering the metallic paste serves as the opposite polarity terminal, for example the positive terminal for the cathode.
A capacitor for powering an implantable medical device is described. The capacitor includes a casing having contoured surfaces to more closely conform to body contours. This means that the anode housed in the casing must also have a contoured shape substantially matching that of the casing. Accordingly, the anode is comprised of a pressed pellet having a surrounding peripheral edge extending to spaced-apart first and second major face walls. An anode lead wire comprises an embedded portion extending into the anode pellet. First and second channel-shaped recesses aligned with each other extend into the anode pellet from the first and second major face walls to intersect with the embedded lead wire portion. The first and second channel-shaped recesses also extend to opposed locations at the surrounding peripheral edge of the anode pellet. The anode pellet is bent at the aligned first and second channel-shaped recesses to provide a right anode pellet portion electrically connected to a left anode pellet portion by the embedded lead wire portion. The thusly contoured anode pellet has an anatomical shape that matches that of the contoured casing to provide an implantable capacitor that is volumetrically efficient.
A hermetically sealed feedthrough assembly for an active implantable medical device having an oxide-resistant electrical attachment for connection to an EMI filter, an EMI filter circuit board, an AIMD circuit board, or AIMD electronics. The oxide-resistant electrical attachment, including an oxide-resistant sputter layer 165 is disposed on the device side surface of the hermetic seal ferrule over which an ECA stripe is provided. The ECA stripe may comprise one of a thermal-setting electrically conductive adhesive, an electrically conductive polymer, an electrically conductive epoxy, an electrically conductive silicone, an electrically conductive polyimide, or a thermal-setting electrically conductive polyimide, such as those manufactured by Ablestick Corporation. The oxide-free electrical attachment between the ECA stripe and the filter or AIMD circuits may comprise one of gold, platinum, palladium, silver, iridium, rhenium, rhodium, tantalum, tungsten, niobium, zirconium, vanadium, and combinations or alloys thereof.
H01G 4/35 - Condensateurs de traversée ou condensateurs antiparasites
A61N 1/375 - Aménagements structurels, p. ex. boîtiers
H01G 4/236 - Bornes pour traverser l'enveloppe, c.-à-d. traversée d'entrée
A61N 1/36 - Application de courants électriques par électrodes de contact courants alternatifs ou intermittents pour stimuler, p. ex. stimulateurs cardiaques
H03H 1/00 - Détails de réalisation des réseaux d'impédances dont le mode de fonctionnement électrique n'est pas spécifié ou est applicable à plus d'un type de réseau
A feedthrough for an AIMD is described. The feedthrough includes an electrically conductive ferrule having a ferrule sidewall defining a ferrule opening. The ferrule sidewall has a height. At least one recessed pocket has a depth extending part-way through the height of the ferrule. An oxide-resistant pocket-pad is nested in the recessed pocket. An electrical connection material is supported on the pocket-pad for making an oxide-resistant electrical connection to the ferrule. An insulator is hermetically sealed to the ferrule in the ferrule opening. At least one active via hole extends through the insulator with an active conductive pathway residing in and hermetically sealed to the insulator in the active via hole.
A61N 1/375 - Aménagements structurels, p. ex. boîtiers
H01R 13/26 - Broches ou lames de contact pour coopération par glissement sur un seul côté
H01R 4/58 - Connexions conductrices de l'électricité entre plusieurs organes conducteurs en contact direct, c.-à-d. se touchant l'un l'autreMoyens pour réaliser ou maintenir de tels contactsConnexions conductrices de l'électricité ayant plusieurs emplacements espacés de connexion pour les conducteurs et utilisant des organes de contact pénétrant dans l'isolation caractérisées par la forme ou le matériau des organes de contact
H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
H03H 1/00 - Détails de réalisation des réseaux d'impédances dont le mode de fonctionnement électrique n'est pas spécifié ou est applicable à plus d'un type de réseau
90.
Electrical connection for an AIMD utilizing an anisotropic conductive layer
A feedthrough for an AIMD includes a ferrule with an insulator hermetically sealing a ferrule opening, both cooperatively separating a body fluid side from a device side. A circuit board disposed adjacent to the insulator device side has a ground plate or ground trace electrically connected to a circuit board ground conductive pathway disposed in a circuit board ground via hole. An anisotropic conductive layer disposed between the circuit board and the insulator device side has an electrically insulative matrix supporting a plurality of electrically conductive particles. The anisotropic conductive layer has a first thickness where at least one first electrically conductive particle is longitudinally aligned and in electrical contact with the ferrule and the circuit board ground conductive pathway electrically connected to the at least one circuit board ground plate or ground trace. The anisotropic conductive layer has a second, greater thickness where the ferrule and the circuit board ground conductive pathway are not longitudinally aligned, and no electrically conductive particles are in electrical contact with the ferrule and the circuit board ground conductive pathway.
H01G 4/236 - Bornes pour traverser l'enveloppe, c.-à-d. traversée d'entrée
H01G 4/35 - Condensateurs de traversée ou condensateurs antiparasites
91.
Miniature electrochemical cell having a casing of a conductive plate closing an open-ended ceramic container having two via holes supporting opposite polarity platinum-containing conductive pathways
z), is deposited on the cathode active material followed by an anode active material in contact with the other conductive pathway. The first and second conductive pathways can comprise platinum or gold. That way, the first and second conductive pathways serve as negative and positive terminals for the cell. The negative and positive terminals are configured for electrical connection to a load.
H01M 50/10 - Boîtiers primairesFourreaux ou enveloppes
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 50/20 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports
H01M 50/116 - Boîtiers primairesFourreaux ou enveloppes caractérisés par le matériau
Miniature electrochemical cell having a casing of a conductive plate closing an open-ended ceramic container having a via hole supporting a platinum-containing conductive pathway
A miniature electrochemical cell having a volume of less than 0.5 cc is described. The cell casing comprises an open-ended ceramic container having a via hole providing an electrically conductive pathway extending through the container. A metal lid closes the open-end of the container. An electrode assembly housed inside the casing comprises an anode current collector deposited on an inner surface of the ceramic container in contact with the electrically conductive pathway in the via hole. An anode active material contacts the current collector and a cathode active material contacts the metal lid. A separator is disposed between the anode and cathode active materials. That way, the electrically conductive pathway serves as a negative terminal, and the lid, electrically isolated from the conductive pathway by the ceramic container, serves as a positive terminal. The negative and positive terminals are configured for electrical connection to a load.
In various examples, a method of establishing a communication session between an external device and an implantable medical device is described. The method includes generating at the external device a first private key and a first public key. A start session order is sent over a long-range communication channel. Evidence of physical proximity is sent from the external device to the implantable medical device over a short-range communication channel. A second private key and a second public key are generated at the implantable medical device. A first shared key is generated by the implantable medical device using the first public key and the second private key. A second shared key is generated by the external device using the second public key and the first private key. The first and second shared keys are used to encrypt and decrypt one or more messages between the external device and the implantable medical device.
A61N 1/372 - Aménagements en relation avec l'implantation des stimulateurs
G16H 40/67 - TIC spécialement adaptées à la gestion ou à l’administration de ressources ou d’établissements de santéTIC spécialement adaptées à la gestion ou au fonctionnement d’équipement ou de dispositifs médicaux pour le fonctionnement d’équipement ou de dispositifs médicaux pour le fonctionnement à distance
G16H 40/63 - TIC spécialement adaptées à la gestion ou à l’administration de ressources ou d’établissements de santéTIC spécialement adaptées à la gestion ou au fonctionnement d’équipement ou de dispositifs médicaux pour le fonctionnement d’équipement ou de dispositifs médicaux pour le fonctionnement local
G06F 21/62 - Protection de l’accès à des données via une plate-forme, p. ex. par clés ou règles de contrôle de l’accès
94.
Miniature electrochemical cells housed in a metallic casing having a glass-to-metal seal isolating the opposite polarity terminals
A miniature electrochemical cell having a total volume that is less than 0.5 cc is described. The casing enclosure consists of a lower plate supporting a cylindrically-shaped can having an open upper end closed with a cover. The can is selectively coated with a dielectric material to provide electrical isolation of the to-be-housed active materials from the can sidewall. A glass-to-metal seal electrically isolates the lower plate from the can. An electrode assembly comprising a sandwich of cathode active material/separator/anode active material is housed in the casing. That way, the lower plate contacting the cathode active material is the positive terminal and the closing cover connected to the can and contacted to the anode active material serves as the negative cell terminal. An electrolyte filled into the casing activates the electrode assembly and the fill opening is sealed with a plug. The cell can be of either a primary or a secondary chemistry.
Tantalum powders produced using a tantalum fiber precursor are described. The tantalum fiber precursor is chopped or cut into short lengths having a uniform fiber thickness and favorable aspect ratio. The chopped fibers are formed into a primary powder having a controlled size and shape, narrow/tight particle size distribution, and low impurity level. The primary powder is then agglomerated into an agglomerated powder displaying suitable flowability and pressability such that pellets with good structural integrity and uniform pellet porosity are manufacturable. The pellet is sintered and anodized to a desired formation voltage. The thusly created capacitor anode has a dual morphology or dual porosity provided by a primary porosity of the individual tantalum fibers making up the primary powder and a larger secondary porosity formed between the primary powders agglomerated into the agglomerated powder.
B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
B22F 3/24 - Traitement ultérieur des pièces ou objets
H01G 9/00 - Condensateurs électrolytiques, redresseurs électrolytiques, détecteurs électrolytiques, dispositifs de commutation électrolytiques, dispositifs électrolytiques photosensibles ou sensibles à la températureProcédés pour leur fabrication
B22F 5/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser
An enhanced RF switchable filtered feedthrough for real-time identification of the electrical and physical integrity of an implanted AIMD lead includes a DOUBLE POLE RF switch disposed on the device side. Additionally, the RF switchable filtered feedthrough can optionally include transient voltage suppressors (TVS) and an MRI mode. In an embodiment, a DOUBLE POLE RF switch selectively disconnects EMI filter capacitors so that an RF test/interrogation signal is sent from the AIMD down into an implanted lead(s). The reflected RF signal is then analyzed to assess implanted lead integrity including lead body anomalies, lead insulation defects, and/or lead conductor defects. The Double Pole switch is configured to be controlled by an AIMD control signal to switch between FIRST and SECOND THROW positions. In the FIRST THROW position a conductive leadwire hermetically sealed to and disposed through an insulator is electrically connected to a filter capacitor, which is then electrically connected to the ferrule of a hermetic feedthrough of an AIMD. In the FIRST THROW position, EMI energy imparted to a body fluid side implanted lead can be diverted to the housing of the AIMD. In the SECOND THROW position the conductive leadwire is electrically connected to an RF source disposed on the device side of the housing of the AIMD. While in the SECOND THROW position, a reflective return signal from the RF source is measured and analyzed to determine if the implanted AIMD lead exhibits any life-threatening performance issues, such as lead body anomalies, lead insulation defects or changes, or even defective, fractured or dislodged lead conductors. In another embodiment, a SINGLE POLE RF switch is configured to disconnect filter capacitors during the delivery of a high-voltage cardioversion shock from an implantable cardioverter defibrillator. Dis-connection of the filter capacitor either reduces or eliminates filter capacitor pulse inrush currents, which allows for the use of standard low-voltage filter capacitors instead of larger and more expensive high-voltage pulse rated filter capacitors. Dis-connection of the filter capacitor also allows for an RF interrogation pulse to be applied to the implanted lead in real-time (for example, pre-set intervals throughout the day).
A61N 1/36 - Application de courants électriques par électrodes de contact courants alternatifs ou intermittents pour stimuler, p. ex. stimulateurs cardiaques
97.
Lithium oxyhalide electrochemical cell design for high-rate discharge
A novel wound electrode assembly for a lithium oxyhalide electrochemical cell is described. The electrode assembly comprises an elongate cathode of an electrochemically non-active but electrically conductive carbonaceous material disposed between an inner elongate portion and an outer elongate portion of a unitary lithium anode. That way, lithium faces the entire length of the opposed major sides of the cathode. This inner anode portion/cathode/outer anode portion configuration is rolled into a wound-shaped electrode assembly that is housed inside a cylindrically-shaped casing. A cylindrically-shaped sheet-type spring centered in the electrode assembly presses outwardly to limit axial movement of the electrode assembly. In one embodiment, all the non-active components, except for the cathode current collector which is nickel, are made of stainless-steel. This provides the cell with a low magnetic signature without adversely affecting the cell's high-rate capability.
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
A61K 31/44 - Pyridines non condenséesLeurs dérivés hydrogénés
A61K 31/4439 - Pyridines non condenséesLeurs dérivés hydrogénés contenant d'autres systèmes hétérocycliques contenant un cycle à cinq chaînons avec l'azote comme hétéro-atome du cycle, p. ex. oméprazole
A61K 31/444 - Pyridines non condenséesLeurs dérivés hydrogénés contenant d'autres systèmes hétérocycliques contenant un cycle à six chaînons avec l'azote comme hétéro-atome du cycle, p. ex. amrinone
A61K 31/4545 - Pipéridines non condensées, p. ex. pipérocaïne contenant d'autres systèmes hétérocycliques contenant un cycle à six chaînons avec l'azote comme hétéro-atome du cycle, p. ex. pipampérone, anabasine
A61K 31/497 - Pyrazines non condensées contenant d'autres hétérocycles
A61K 31/501 - PyridazinesPyridazines hydrogénées non condensées et contenant d'autres hétérocycles
A61K 31/505 - PyrimidinesPyrimidines hydrogénées, p. ex. triméthoprime
A61K 31/506 - PyrimidinesPyrimidines hydrogénées, p. ex. triméthoprime non condensées et contenant d'autres hétérocycles
A61K 45/06 - Mélanges d'ingrédients actifs sans caractérisation chimique, p. ex. composés antiphlogistiques et pour le cœur
C07D 213/75 - Radicaux amino ou imino, acylés par un acide carboxylique, par l'acide carbonique ou par leurs analogues du soufre ou de l'azote, p. ex. des carbamates
C07D 401/04 - Composés hétérocycliques contenant plusieurs hétérocycles comportant des atomes d'azote comme uniques hétéro-atomes du cycle, au moins un cycle étant un cycle à six chaînons avec un unique atome d'azote contenant deux hétérocycles liés par une liaison directe de chaînon cyclique à chaînon cyclique
C07D 401/12 - Composés hétérocycliques contenant plusieurs hétérocycles comportant des atomes d'azote comme uniques hétéro-atomes du cycle, au moins un cycle étant un cycle à six chaînons avec un unique atome d'azote contenant deux hétérocycles liés par une chaîne contenant des hétéro-atomes comme chaînons
C07D 417/06 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes de soufre et d'azote comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant deux hétérocycles liés par une chaîne carbonée contenant uniquement des atomes de carbone aliphatiques
C07D 417/08 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes de soufre et d'azote comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant deux hétérocycles liés par une chaîne carbonée contenant des cycles alicycliques
C07D 417/14 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes de soufre et d'azote comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant au moins trois hétérocycles
H01M 4/134 - Électrodes à base de métaux, de Si ou d'alliages
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/38 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'éléments simples ou d'alliages
H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de composés inorganiques autres que les oxydes ou les hydroxydes, p. ex. sulfures, séléniures, tellurures, halogénures ou LiCoFyEmploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p. ex. phosphates, silicates ou borates
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
H01M 50/131 - Boîtiers primairesFourreaux ou enveloppes caractérisés par les propriétés physiques, p. ex. la perméabilité au gaz, les dimensions ou la résistance à la chaleur
H01M 50/138 - Boîtiers primairesFourreaux ou enveloppes adaptés à des cellules spécifiques, p. ex. à des cellules électrochimiques fonctionnant à haute température
H01M 50/148 - Couvercles caractérisés par leur forme
H01M 50/186 - Éléments de scellement caractérisés par la position des éléments de scellement
H01M 50/188 - Éléments de scellement caractérisés par la position des éléments de scellement les éléments de scellement étant arrangés entre le couvercle et la borne
A miniature electrochemical cell having a volume of less than 0.5 cc is described. The cell has a casing of first and second ceramic substrates that are hermetically secured to each other to provide an internal space housing an electrode assembly. First and second conductive pathways extend through the ceramic substrates. The pathways have respective inner surfaces that are conductively connected to the respective anode and cathode current collectors and respective outer surfaces that provide for connection to a load. An electrolyte in the internal space of the housing activates the electrode assembly.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 4/134 - Électrodes à base de métaux, de Si ou d'alliages
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 50/46 - Séparateurs, membranes ou diaphragmes caractérisés par leur combinaison avec des électrodes
99.
Miniature electrochemical cell having a casing of a metal container closed with a ceramic plate having two via holes supporting opposite polarity platinum-containing conductive pathways
A miniature electrochemical cell having a volume of less than 0.5 cc includes a casing having a header assembly comprising a ceramic plate formed by co-firing a metallic-containing paste in first and second via holes extending through a green-state ceramic. The ceramic plate is joined to a metal ring by a gold-braze to form the header assembly that is secured to an open-ended metal container by a weld to provide the casing. The fill material resulting from sintering the metallic-containing paste provides a first conductive pathway to the anode current collector contacting an anode active material and a second conductive pathway to a cathode current collector contacting a cathode active material. A solid electrolyte activates the anode and cathode while also serving as a separator. Outer surfaces of the first and second conductive pathways are configured for electrical connection to a load.
H01M 50/116 - Boîtiers primairesFourreaux ou enveloppes caractérisés par le matériau
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p. ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 50/10 - Boîtiers primairesFourreaux ou enveloppes
100.
Thin film electrochemical cell activated with a solid electrolyte and housed in a casing formed of opposed ceramic substrates sealed together with an intermediate ring-shaped metallization
