09 - Appareils et instruments scientifiques et électriques
10 - Appareils et instruments médicaux
35 - Publicité; Affaires commerciales
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Remote electronic transmission of data via communications network and internet for data processing; communications being recording, storing, editing, analyzing, reporting, sharing and transmitting patient data through transmission of patient data, transmission of voice, transmission of images, voice over IP services, transmission of tutorial videos, transmission of follow-up and diagnostic assessments, transmission of queries, and transmission of summaries through a global computer network; communications being transmission of patient data, transmission of voice, transmission of images, voice over IP services, transmission of tutorial videos, transmission of follow-up and diagnostic assessments, transmission of queries, and transmission of summaries through the internet; providing access to the internet; providing internet chat rooms; providing user access to computer programs via the internet; providing telecommunications connections to the internet or databases; providing access to computer networks and the internet Batteries and electric rechargeable batteries; electrical rechargeable battery packs; battery kits comprising batteries, battery packs, battery chargers, calibration devices for calibrating rechargeable batteries, battery cables, connection cables, electric adapter cables, power cords, battery cases, and printed instructions; battery chargers; replacement parts of the aforesaid batteries, namely, electrical cables for battery chargers, replacement batteries, replacement battery packs, battery chargers, calibration devices for calibrating rechargeable batteries, battery cables, connection cables, electric adapter cables, power supplies, power cords, battery cases, battery straps and printed instructions; and recorded computer software for medical purposes, namely, for controlling apparatus for treating breathing disorders, and for controlling and managing patient medical information; downloadable and recorded computer software for use in the field of healthcare, namely, for collecting, processing and managing sleep and respiratory patient data enabling providers to share and exchange information; downloadable and recorded computer software for use in diagnosing sleep disorders; downloadable and recorded computer software for automatically performing sleep study scoring for use in recording and analyzing data during the sleep of patients; downloadable and recorded computer software programs and application software suited for smart phones for recording, editing and transmitting data; downloadable and recorded computer software incorporating medical algorithms for controlling positive airway pressure apparatus for the treatment of respiratory disorders; downloadable and recorded computer software and firmware, namely, operating system programs, data synchronization programs, and application development computer software programs for personal and handheld computers; downloadable and recorded computer software for analyzing data from face and head images and patient questionnaires for use in selecting a respiratory mask or generating a customized respiratory mask design Medical and surgical apparatus, equipment and instruments, namely, apparatus for use in the treatment of breathing disorders and replacement parts and fittings therefor, positive airway pressure equipment for the treatment of sleep apneas, medical ventilator equipment to assist or replace patient breathing, medical resuscitators, bi-level positive airway pressure devices, continuous positive airway pressure devices and variable positive airway pressure devices, airway clearance systems, comprised of air delivery devices and/or suction devices and patient interfaces therefor; capnography sensors being respiratory sensors; valved holding chamber for use with metered dose inhalers; medical tubing and tubing connectors; textile and/or plastic material headgear specially adapted for use with medical mask interfaces; medical masks, mask cushions and cannulas for medical purposes; humidification apparatuses for medical purposes, therapeutic mouthpieces, air filters for use in the treatment of breathing disorders, pressure relief valves for medical purposes, control valves for regulating the flow of gases for medical purposes and printed instructions for medical and surgical apparatus, equipment and instruments; positive airway pressure equipment for the treatment of sleep apneas and replacement parts and fittings therefor; positive airway pressure equipment tubing and tubing connectors; textile and/or plastic material headgear specially adapted for use with positive airway pressure equipment mask interfaces and medical insufflation mask interfaces, medical positive airway pressure masks and medical insufflation masks; mask cushions for use with positive airway pressure equipment, medical apparatus for the treatment of respiratory conditions, namely, positive airway pressure equipment for the treatment of sleep apneas and replacement parts and fittings therefor, tubing and tubing connectors for use with positive airway pressure equipment for the treatment of sleep apneas, textile and/or plastic material headgear specially adapted for use with positive airway pressure equipment for the treatment of sleep apneas, medical masks and medical insufflation masks for use with positive airway pressure equipment for the treatment of sleep apneas, mask cushions for use with positive airway pressure equipment for the treatment of sleep apneas, cannulas for use with positive airway pressure equipment for the treatment of sleep apneas; humidification apparatuses for use with positive airway pressure equipment; air filters for use with positive airway pressure equipment; medical ventilator equipment replacement parts and fittings therefor; medical ventilator tubing and tubing connectors, textile and/or plastic material headgear specially adapted for use with medical ventilator mask interfaces and medical insufflation mask interfaces, medical ventilator masks, mask cushions for use with medical ventilator equipment, cannulas for use with medical ventilator equipment, humidification apparatuses for use with medical ventilator equipment, and air filters for use with medical ventilator equipment; medical resuscitators replacement parts and fittings, medical resuscitator tubing and tubing connectors, textile and/or plastic material headgear specially adapted for use with medical resuscitator mask interfaces, medical resuscitator masks, mask cushions for use with medical resuscitators, cannulas for use with medical resuscitators, humidification apparatus for use with medical resuscitators, and air filters for use with medical resuscitators; respiratory equipment and monitors therefor, and medical apparatus that provides variable air pressure to a patient, namely, bi-level positive airway pressure devices, continuous positive airway pressure devices and variable positive airway pressure devices and replacement parts therefor, medical tubing and tubing connectors for use with respiratory equipment and monitors therefor, textile and/or plastic material headgear specially adapted for use with respiratory equipment and monitors therefor, medical masks for use with respiratory equipment and monitors therefor, mask cushions for use with medical respiratory equipment, cannulas for use with respiratory equipment, humidification apparatuses for use with respiratory equipment, and air filters for use with respiratory equipment; medical apparatus airway clearance systems replacement parts and fittings therefor; medical tubing and tubing connectors for use with airway clearance systems; medical masks for use with airway clearance systems; therapeutic mouthpieces for use with airway clearance systems; air filters for use with airway clearance systems; water traps for separating liquid from a breathing gas of a patient; rechargeable battery packs for airway clearance systems, cases and covers for rechargeable battery packs for airway clearance systems, chargers for rechargeable battery packs for airway clearance systems, cables for airway clearance systems, power adapters for airway clearance systems; airway pressure devices, namely, bi-level positive airway pressure devices, continuous positive airway pressure devices and variable positive airway pressure devices; portable oxygen concentrators replacement parts for medical applications, medical tubing and tubing connectors for use with oxygen concentrators, medical masks for use with oxygen concentrators, mask cushions for use with oxygen concentrators, cannulas for use with oxygen concentrators, therapeutic mouthpieces for use with oxygen concentrators, air filters for use with oxygen concentrators, cases and straps for oxygen concentrators, medical bags designed to hold oxygen concentrators, medical bags designed to hold accessories for oxygen concentrators, pulse oximeters for medical purposes, medical cases for pulse oximeters, peak flow meters, gaskets and gasket tools for use with oxygen concentrators, humidification apparatuses for use with oxygen concentrators, pressure relief valves for use with oxygen concentrators, humidifier pouches for medical humidifiers, rechargeable battery packs for oxygen concentrators, cases and covers for rechargeable battery packs for oxygen concentrators, chargers for rechargeable battery packs for oxygen concentrators, cables for oxygen concentrators, power cords for oxygen concentrators, power adapters for oxygen concentrators, and powers supplies for oxygen concentrators; power adapters for use with drug delivery nebulizers, respiratory apparatus and instruments; rechargeable battery packs for use with drug delivery nebulizers, respiratory apparatus and instruments; chargers for rechargeable battery packs for use with drug delivery nebulizers, respiratory apparatus and instruments; power cords for use with drug delivery nebulizers, respiratory apparatus and instruments; cases for use with drug delivery nebulizers, respiratory apparatus and instruments; air filters for use with drug delivery nebulizers, respiratory apparatus and instruments; compressor nebulizer devices for respiratory therapy replacement parts including masks; nasal masks in the nature of respiratory masks for medical purposes, as well as replacement parts therefor, medical tubing and tubing connectors for use with nasal masks, control valves for regulating the flow of gases for use with nasal masks, medical tubing for administering gases for use with nasal masks, cannulas for use with nasal masks, humidification apparatus for use with nasal masks; respiratory masks for sleep therapy, as well as replacement parts therefor, medical tubing and tubing connectors for use with respiratory masks for sleep therapy, textile and/or plastic material headgear specially adapted for use with respiratory masks for sleep therapy, masks for sleep therapy, cannulas for use with respiratory masks for sleep therapy, humidification apparatus for use with respiratory masks for sleep therapy, valves for regulating the flow of gases for use with respiratory masks for sleep therapy; respiratory mask for use with medical breathing devices, as well as replacement parts therefor, medical tubing and tubing connectors for use with medical breathing devices, textile and/or plastic material headgear specially adapted for use with medical breathing devices, cannulas for use with medical breathing devices, humidification apparatuses for use with medical breathing devices, control valves for regulating the flow of gases for use with medical breathing devices; respiratory masks for medical purposes with gel nasal pillows or with silicone nasal pillows, as well as replacement parts therefor, medical tubing and tubing connectors for use with respiratory masks for medical purposes, headgear specially adapted for use with respiratory masks for medical purposes, cannulas for use with respiratory masks for medical purposes, humidification apparatuses for use with respiratory masks for medical purposes, control valves for regulating the flow of gases for use with respiratory masks for medical purposes Data processing services, namely, compilation and systemization of data in computer databases; data processing services in the nature of data administration using computers; data processing services in the field of healthcare, namely, collecting, processing and managing sleep and respiratory patient data enabling providers to share and exchange information for the purpose of medical treatment and diagnosis providing online non-downloadable software for analyzing data from face and head images and patient questionnaires for use in selecting a respiratory mask or generating a customized respiratory mask design; cloud-computing services featuring software for processing and analyzing face and head images, retrieving and analyzing patient questionnaires, and selecting a respiratory mask or generating a customized face mask design to fit the patient
Electro-mechanical device, namely a mechanical
insufflation-exsufflation device (MIE) used to clear
secretions from the lungs by gradually applying positive
pressure to the airway and rapidly shifting to negative
pressure to produce a high expiratory flow from the lungs.
A patient interface of the present invention includes a faceplate including a plurality of headgear attachment elements, a seal member operatively coupled to the faceplate; and an adjustment mechanism coupling the seal member to the faceplate. The adjustment mechanism controls the position of the seal member relative to the faceplate such that the seal member is moveable from a first position to a second position and is maintained in the second position during use of the patient interface after being moved to the second position.
A patient interface device includes a support member, a sealing assembly attached to the support member, and a pair of contacting members. The contacting members are coupled to the support member on each side of the sealing assembly. The contacting members are each configured and arranged to contact the user over a limited contacting region, which corresponds to a junction of the orbicularis oris facial muscle, the zygomaticus facial muscle, and the risorius facial muscle.
A humidifier for use with a pressure support system. The humidifier includes a body having an inlet, a fluid holding chamber, and an outlet. The inlet is positioned upstream and in fluid communication with the fluid holding chamber. The outlet is positioned downstream of and in fluid communication with the fluid holding chamber. A back-flow preventing valve is positioned upstream of the fluid chamber. The back-flow preventing valve is movable between an open position, in which the inlet is unblocked, and a closed position in which the inlet is blocked. In the closed position, the back-flow preventing valve prevents fluid, fluid vapor, or both from entering the pressure support via the inlet to the humidifier.
A patient interface device includes a support member, a sealing assembly attached to the support member, and a pair of contacting members. The contacting members are coupled to the support member on each side of the sealing assembly. The contacting members are each configured and arranged to contact the user over a limited contacting region, which corresponds to a junction of the orbicularis oris facial muscle, the zygomaticus facial muscle, and the risorius facial muscle.
The present system is an adsorption system for separating air into a concentrated gas component, which has an air supply, a compressor for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the compressed air supply into a concentrated gas component. The adsorption system delivers at least 5 liters per minute (LPM) of concentrated gas component from the molecular sieve material in which the system has a specific total weight per LPM<9 lbs/LPM. Additionally, an output quantity of the concentrated gas is delivered by the adsorption system and a purging quantity of the concentrated gas is dispensed into a sieve chamber of the adsorption system undergoing a purge cycle. The purging quantity has a value equal to or less than the difference between the maximum quantity and the output quantity, and the purging quantity is controlled based on the output quantity.
B01D 53/04 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes
A62B 21/00 - Dispositifs pour la production d'oxygène à partir de substances chimiques pour appareils respiratoires
A61M 16/10 - Préparation de gaz ou vapeurs à respirer
A respiratory mask is provided having an outer shell coupled to a cushion for the delivery of a gas to a user. The cushion of the respiratory mask has at least one pleat disposed in the cushion in order to provide varying degrees of flexibility and support about the cushion.
A patient interface device includes a support member, a sealing assembly attached to the support member, and a pair of contacting members. The contacting members are coupled to the support member on each side of the sealing assembly. The contacting members are each configured and arranged to contact the user over a limited contacting region, which corresponds to a junction of the orbicularis oris facial muscle, the zygomaticus facial muscle, and the risorius facial muscle.
A patient interface for communicating fluids to and/or from a patient's nasal cavity and/or oral cavity is disclosed. In addition, a patient interface for fluid and physiological function monitoring proximate to the patient's nasal cavity and/or oral cavity is disclosed. An apnea monitor and a method for monitoring apnea are also disclosed.
A61B 5/0205 - Évaluation simultanée de l'état cardio-vasculaire et de l'état d'autres parties du corps, p. ex. de l'état cardiaque et respiratoire
A61B 5/1455 - Mesure des caractéristiques du sang in vivo, p. ex. de la concentration des gaz dans le sang ou de la valeur du pH du sang en utilisant des capteurs optiques, p. ex. des oxymètres à photométrie spectrale
A61B 5/024 - Mesure du pouls ou des pulsations cardiaques
A patient interface device that includes a support member sized and configured to span at least a portion of a patient's face while remaining below the patient's eyes responsive to the patient interface device being donned by such a patient and a sealing assembly operatively coupled to the support member such that the support member is moveable relative to the support member. The support member defines a gas carrying conduit adapted to carry a flow of gas to the sealing assembly. The support member is a single-piece unitary member and includes a conduit coupling portion adapted to be coupled to a patient circuit.
A system configured to provide breathing cues to a patient to alleviate insomnia or sleeplessness. In one embodiment, the system comprises a pressure support apparatus, a patient monitor, and a processor. The pressure support apparatus is configured to provide a pressurized flow of gas for delivery to an airway of the patient. The patient monitor configured to generate one or more signals that convey information related to one or more physiological functions of the patient. The processor in operative communication with each of the pressure support apparatus and the patient monitor. The processor is configured (i) to determine whether the patient is asleep or awake based at least in part on the one or more signals generated by the patient monitor, and (ii) to control the pressure support apparatus such that if the patient is determined to be awake, one or more properties of the flow of gas are varied according to a first predetermined algorithm designed to provide breathing cues to the patient that prompt the patient to breathe at a target breathing rate.
A61M 21/00 - Autres dispositifs ou méthodes pour amener un changement dans l'état de conscienceDispositifs pour provoquer ou arrêter le sommeil par des moyens mécaniques, optiques ou acoustiques, p. ex. pour mettre en état d'hypnose
A pressure support system that comprises a patient circuit, a docking assembly, and a tank. The patient circuit delivers a pressurized flow of breathable gas to a patient. The docking assembly has an inlet and an outlet that is adapted to receive the pressurized flow of breathable gas, and is also adapted to be connected with the patient circuit. The tank is constructed and arranged to be removably connected with the docking assembly, and enables the pressurized flow of breathable gas to pass therethrough. The tank is also adapted to contain a liquid such that a humidity level of the pressurized flow of breathable gas is elevated as the pressurized flow of breathable gas passes therethrough.
A patient treatment system that comprises a gas delivery system, a patient interface, and a control interface to provide a pressurized flow of breathable gas. The patient interface is in communication with the gas delivery system, and is constructed to interface with a patient to provide the breathable gas to the patient. The control interface is carried by the patient interface, and enables the patient to control at least one aspect of the patient treatment system.
A patient interface that reliably and comfortably seals a user's face by providing an oral-nasal mask that includes an integrated nasal interface. The patient interface includes a seal member having an oral cushion portion configured to surround the user's mouth and a nasal interface portion that provides an interface with the user's nose. The seal member, including the oral cushion portion and the nasal interface portion, is a unitary member. Finally, the nasal interface portion remains below the bridge of the nose.
A patient interface device that includes a body portion comprising a pair of arms and a chin support. A first end portion of each arm in the pair of arms is coupled to an opposite end of the chin support. The chin support is adapted to be disposed under the mandible responsive to the patient interface device being donned by a user. At least one headgear attachment element is provided on each arm in the pair of arms. A circuit portion is provided at a second end portion of each arm in the pair of arm. A patient interface portion is coupled to the circuit portion.
A mainstream gas monitoring method includes a using a mainstream airway adapter and a gas sensing assembly associated with the mainstream airway adapter to measure an analyte of a gas flow through the adapter. A gas sensing portion outputs a signal indicative of the analyte in a gas flow in the mainstream airway adapter. A processing portion receives the signal from the gas sensing portion and determines an amount of the analyte in the gas flow based on the signal from the gas sensing portion. The processing portion also compensates for volumetric differences between the gas flow during inspiration and the gas flow during expiration to maximize the accuracy in the measurements.
A patient interface of the present invention includes a faceplate including a plurality of headgear attachment elements, a seal member operatively coupled to the faceplate; and an adjustment mechanism coupling the seal member to the faceplate. The adjustment mechanism controls the position of the seal member relative to the faceplate such that the seal member is moveable from a first position to a second position and is maintained in the second position during use of the patient interface after being moved to the second position.
A patient interface for communicating fluids to and/or from a patient's nasal cavity and/or oral cavity is disclosed. In addition, a patient interface for fluid and physiological function monitoring proximate to the patient's nasal cavity and/or oral cavity is disclosed. An apnea monitor and a method for monitoring apnea are also disclosed.
The present disclosure describes a system configured to stimulate a vestibular system of a user while the user is in a sleeping position. The system comprises a housing; a power supply; an electrode assembly; a controller that controls stimulation of the vestibular system through delivery of energy from the power supply to the electrode assembly; an input element configured to control operation of the system; an auditory output device that provides auditory output to the user, wherein the auditory output is synchronized with the stimulation of the vestibular system to enhance an effect of the stimulation; a mounting assembly for mounting the housing on the user; and a sensor adapted to generate an output signal related to a physiological parameter of the user, wherein the controller controls the electrode assembly to cease delivery of the energy responsive to the output signal indicating that the user is leaving the sleeping position.
A61N 1/36 - Application de courants électriques par électrodes de contact courants alternatifs ou intermittents pour stimuler, p. ex. stimulateurs cardiaques
A patient interface that reliably and comfortably seals a user's face by providing an oral-nasal mask that includes an integrated nasal interface. The patient interface includes a seal member having an oral cushion portion configured to surround the user's mouth and a nasal interface portion that provides an interface with the user's nose. The seal member, including the oral cushion portion and the nasal interface portion, is a unitary member. Finally, the nasal interface portion remains below the bridge of the nose.
A respiratory mask is provided having an outer shell coupled to a cushion for the delivery of a gas to a user. The cushion of the respiratory mask has at least one pleat disposed in the cushion in order to provide varying degrees of flexibility and support about the cushion.
A trans-fill method and system comprising obtaining therapeutic gas from a therapeutic gas source, compressing the therapeutic gas from the therapeutic gas source in at least two stages to create an intermediate therapeutic gas stream and a high pressure therapeutic gas stream, supplying therapeutic gas to a patient from the intermediate therapeutic gas stream, and filling a cylinder with the therapeutic gas from the high pressure therapeutic gas stream substantially simultaneously with supplying therapeutic gas to the patient.
A patient interface device that includes a body portion comprising a pair of arms and a chin support. A first end portion of each arm in the pair of arms is coupled to an opposite end of the chin support. The chin support is adapted to be disposed under the mandible responsive to the patient interface device being donned by a user. At least one headgear attachment element is provided on each arm in the pair of arms. A circuit portion is provided at a second end portion of each arm in the pair of arm. A patient interface portion is coupled to the circuit portion.
A strap for use in a mask attachment assembly. The strap includes a hook pad provided on a first portion of a surface of the strap located and having a first width extending perpendicularly to a longitudinal axis of the strap. The hook pad includes a plurality of hooks. Loops are provided on a second portion of the surface of the strap. The second portion has a second width extending perpendicularly to the longitudinal axis of the strap. The plurality of loops extend entirely across the second width and are configured to engage the plurality of hooks in a releasable and engageable manner. The second width is greater than the first width, and an outer edge portion of the first portion of the surface surrounding at least a portion of the hook pad, wherein the outer edge portion does not include any hooks.
A computer-implemented method for tracking and monitoring a patient's compliance with a medical device usage prescription for a medical device is disclosed. This method and system includes the steps of: (a) providing a minimum medical device usage compliance value for the medical device for a predetermined compliance period; (b) providing the quantity of compliance periods in a measurement cycle; and (c) determining a compliance period value as the number of compliance periods in the measurement cycle in which an actual medical device usage value is at least equal to the minimum medical device usage compliance value. In another embodiment, the method also includes: providing a weighting factor, and applying the weighting factor to at least one actual medical device session usage value.
G06Q 50/00 - Technologies de l’information et de la communication [TIC] spécialement adaptées à la mise en œuvre des procédés d’affaires d’un secteur particulier d’activité économique, p. ex. aux services d’utilité publique ou au tourisme
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
A mask attachment assembly for use in attaching a mask in a sealed position on the user's face. The mask attachment assembly includes a panel member with a sleeve extending along the panel member, and one or more straps extending through and slidable within the sleeve. The strap includes a first attachment assembly on a first end of the strap for engaging a first engagement member on a first side of the mask, and a second attachment assembly on a second side of the strap for engaging a second engagement member on a second side of the mask. The strap is repositionable by releasing the attachment assemblies, sliding the strap through the sleeve of the panel and re-engaging the attachment assemblies. A patient interface device and a strap are also disclosed.
A magnetic coupling assembly for use in coupling portions of a gas deliver system. The magnetic coupling assembly includes a first member and a second member to be coupled together. The attractive forces between the first plurality of magnetic elements on the first member and a second plurality of magnetic elements on the second member join these member. The poles of magnetic elements in the first and second plurality of magnetic elements is opposite that of an adjacent magnetic element. The first and second members are easily detached from one another simply by rotating the first member relative to the second member such that the magnetic poles of the magnetic elements in each plurality of magnetic elements become unaligned, causing an weakening of the attractive forces.
The present system is an adsorption system for separating air into a concentrated gas component, which has an air supply, a compressor for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the compressed air supply into a concentrated gas component. The adsorption system delivers at least 5 liters per minute (LPM) of concentrated gas component from the molecular sieve material in which the system has a specific total weight per LPM <9 lbs/LPM. Additionally, an output quantity of the concentrated gas is delivered by the adsorption system and a purging quantity of the concentrated gas is dispensed into a sieve chamber of the adsorption system undergoing a purge cycle. The purging quantity has a value equal to or less than the difference between the maximum quantity and the output quantity, and the purging quantity is controlled based on the output quantity.
B01D 53/02 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse
The present system is an adsorption system (100) for separating air into a concentrated gas component, which has an air supply, a compressor (115) for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the compressed air supply into a concentrated gas component. The adsorption system delivers at least 5 liters per minute (LPM) of concentrated gas component from the molecular sieve material in which the system has a specific total weight per LPM<9 lbs/LPM. Additionally, an output quantity of the concentrated gas is delivered by the adsorption system and a purging quantity of the concentrated gas is dispensed into a sieve chamber of the adsorption system undergoing a purge cycle. The purging quantity has a value equal to or less than the difference between the maximum quantity and the output quantity, and the purging quantity is controlled based on the output quantity.
B01D 53/02 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse
33.
Respiratory treatment device with patient reporting
One aspect of the invention relates to a patient treatment system that delivers a pressurized flow of breathable gas to a patient. The system comprises a baseline module, a treatment measurement module, and a report module. The baseline module determines a baseline amount of treatment the patient should receive from the patient treatment system during a first time interval. The treatment measurement module measures an amount of treatment received by the patient during a second time interval. The report module generates a treatment report based upon the measured amount of treatment received by the patient during the second time interval and the baseline amount of treatment the patient should receive during the first time interval.
A magnetic coupling assembly for use in coupling portions of a gas delivery system. The magnetic coupling assembly includes a first member and a second member to be coupled together. The attractive forces between the first plurality of magnetic elements on the first member and a second plurality of magnetic elements on the second member join these members. The poles of magnetic elements in the first and second plurality of magnetic elements is opposite that of an adjacent magnetic element. The first and second members are easily detached from one another simply by rotating the first member relative to the second member such that the magnetic poles of the magnetic elements in each plurality of magnetic elements become unaligned, causing an weakening of the attractive forces.
A system and method for delivering a flow of breathing gas to an airway of a patient. The system monitors a characteristic that varies based on variations of the flow of the breathing gas and determines a Target Flow for the gas to be delivered to the patient based on the monitored characteristic. The Target Flow is set to a level sufficient to treat Cheyne-Stokes respiration or a sleep disordered breathing event. The system also alters the Target Flow based on a determination that the patient is experiencing a sleep disordered breathing event. The system further determines a pressure relief component and controls the flow of gas delivered to the patient based on the Target Flow and the pressure relief component.
F16K 31/02 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques
36.
Respiratory component measurement system with indicating elements
A respiratory component measurement system that includes an airway adapter adapted to be placed in fluid communication with an airway of a patient and a sensor element in physical communication with the airway adapter. The sensor element is adapted to detect an orientation related characteristic of the airway adapter, a motion related characteristic of the airway adapter, or both. A respiratory component sensor is also adapted to be disposed on the airway adapter so as to measure a characteristic associated with a flow of gas through the airway adapter. An indicating element coupled to the respiratory component sensor is adapted to output a representation of the orientation related characteristic.
G01F 1/36 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques en mesurant la pression ou la différence de pression la pression ou la différence de pression étant produite par une contraction de la veine fluide
G01F 15/18 - Supports ou moyens de raccordement pour les compteurs
A method and apparatus for monitoring changes in the intra-thoracic pressure of a patient due to the patient's respiratory activity or volumetric changes in the extra-thoracic arterial circulatory system due to cardiac function based on the changes in pressure in the patient's extra-thoracic arterial circulatory system as measured by a plethysmography sensor, such as an photoplethysmograph. A frequency spectrum is generated for the plethysmograph signal and the frequencies of interest is isolated from the frequency spectrum by setting appropriate cutoff frequencies for the frequency spectrum. This isolated frequency is used to filter the plethysmograph signal to provide a signal indicative of the patient's respiratory activity or cardiac function. For corrections for breathing frequency roll-off and deviations of the I:E ratio from 1:1.
A pressure support system that comprises a patient circuit, a docking assembly, and a tank. The patient circuit delivers a pressurized flow of breathable gas to a patient. The docking assembly has an inlet and an outlet that is adapted to receive the pressurized flow of breathable gas, and is also adapted to be connected with the patient circuit. The tank is constructed and arranged to be removably connected with the docking assembly, and enables the pressurized flow of breathable gas to pass therethrough. The tank is also adapted to contain a liquid such that a humidity level of the pressurized flow of breathable gas is elevated as the pressurized flow of breathable gas passes therethrough.
An optical sensor is configured to determine an amount of at least one material in a sample without interference from any of the material of interest present in an ambient environment in which the optical sensing is effected. The optical sensor may include a compensation detector positioned a different distance apart from a source of monitoring radiation than the distance that a primary, measurement detector is positioned from the source. Alternatively, the optical sensor may include an optically transparent material that consumes space within the sensor and, thus, eliminates ambient amounts of a material of interest from at least a portion of an optical pathway through the sensor. A calibration element transmits calibration radiation to one or more detectors of an optical sensor to facilitate correction of any changes in the manner in which the one or more detectors sense radiation. Optical sensing methods are also disclosed, as are calibration methods.
A filter assembly for use in sidestream gas sampling assembly. The filter assembly of the present invention includes a hydrophilic. The filter further includes a Hydrophobic member positioned downstream of the hydrophilic liner. The hydrophobic disk acts as a second line of defense against moisture reaching the sensing mechanism member that is constructed from a porous material and is situated such that gas entering the filter assembly passes through at least a portion the hydrophilic member. In a further embodiment, the filter includes a hydrophobic member positioned downstream of the hydrophilic member. The hydrophobic member acts as a second line of defense against moisture reaching the sensing mechanism in the gas sampling assembly.
A seal for a respiratory mask that includes a first end portion adapted to be coupled to a mask shell, a second end portion for sealing engagement with a face of a patient, and a sidewall extending between the first end portion and the second end portion. At least a portion of the second end portion includes a textured area having a first rms surface roughness that is greater than a second rms surface roughness of a non-textured area of the seal. The area of increased surface roughness provides the patient contacting portion of the seal with a silky feeling to maximize patient comfort and the effectiveness of the seal without impairing the sealing ability.
A sidestream gas sampling system that includes a conduit that communicates a flow of gas to a gas measurement site. A gas measurement assembly measures a constituent of the flow of gas at the gas measurement site. A capillary tube communicates the flow of gas from the gas measurement site. A differential pressure transducer in fluid communication with first and second portions of the capillary tube measure a pressure differential between these two portions. A controller is coupled to the differential pressure transducer to measure the flow of gas based on the output of the differential pressure transducer and to control the flow of gas via a flow generator coupled to the gas flow path.
A user interface for a portable oxygen concentration system. The user interface includes a touch screen and a controller coupled to the touch screen. The controller is configured to detect when a first portion of the touch screen is contacted by a user, and thereafter operate the touch screen for displaying an icon on a second portion of the touch screen.
G06F 3/048 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI]
G06F 3/0488 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] utilisant des caractéristiques spécifiques fournies par le périphérique d’entrée, p. ex. des fonctions commandées par la rotation d’une souris à deux capteurs, ou par la nature du périphérique d’entrée, p. ex. des gestes en fonction de la pression exercée enregistrée par une tablette numérique utilisant un écran tactile ou une tablette numérique, p. ex. entrée de commandes par des tracés gestuels
A patient interface device that includes a body portion comprising a pair of arms and a chin support. A first end portion of each arm in the pair of arms is coupled to an opposite end of the chin support. The chin support is adapted to be disposed under the mandible responsive to the patient interface device being donned by a user. At least one headgear attachment element is provided on each arm in the pair of arms. A circuit portion is provided at a second end portion of each arm in the pair of arm. A patient interface portion is coupled to the circuit portion.
An apparatus and associated method for collecting data for a sleep study. The apparatus includes a sensor adapted to collect data relating to a parameter of a user of the apparatus over a period of time, and a controller operatively coupled to the sensor. The controller is adapted to: (a) receive configuration information specifying a predetermined amount of valid data that is required for a sleep study to be deemed valid, (b) receive the data relating to the parameter and determine an amount of the received data that is valid, and (c) cause a study status indicator to be output by the apparatus based on the amount of the received data that is determined to be valid and the predetermined amount specified in the configuration information.
A system that determines one or more sleep phenotyping parameters of a subject. In one embodiment, the system comprises a sleep sensor, a stimulus generator, and a processor. The sleep sensor generates signals that convey information related to the physiological functions that indicate the sleep stage of the subject. The stimulus generator provides a stimulus to the subject that enables information related to the sleep phenotyping parameters to be determined. The processor receives the signals generated by the sleep sensor and is in operative communication with the stimulus generator. The processor (i) determines, based on the signals received from the sleep sensor, whether a trigger condition related to the current sleep stage of the subject is satisfied, (ii) controls the stimulus generator to provide the stimulus to the subject if the trigger condition is satisfied, and (iii) quantifies the response of the subject to the stimulus.
A vestibular stimulation system and method that includes a housing, a power supply disposed in the housing, an electrode assembly adapted to be coupled to the housing, and a controller disposed in the housing and operatively coupled to the power supply. The controller controls the delivery of energy from the power supply to the electrode assembly. An input element is also disposed on an exterior surface of the housing. The input element is manually manipulated to control the operation of the vestibular stimulation system. A display disposed on an exterior surface of the housing provides visual information regarding the operation of the vestibular stimulation system. A mounting assembly is coupled to the housing to mount the housing on such a user.
A61N 1/36 - Application de courants électriques par électrodes de contact courants alternatifs ou intermittents pour stimuler, p. ex. stimulateurs cardiaques
A patient interface that reliably and comfortably seals a user's face by providing an oral-nasal mask that includes an integrated nasal interface. The patient interface includes a seal member having an oral cushion portion configured to surround the user's mouth and a nasal interface portion that provides an interface with the user's nose. The seal member, including the oral cushion portion and the nasal interface portion, is a unitary member. Finally, the nasal interface portion remains below the bridge of the nose.
An infant phototherapy device comprises a housing assembly, a light source carried by the housing assembly, and a panel mode assembly including a panel mode adaptor arranged to be detachably connected with the housing assembly. The panel mode assembly further comprises an elongated flexible light pipe and a light emitting panel, the light pipe providing light communication between the light source and the light emitting panel, so that when the panel mode adaptor is connected with the housing assembly, light emitted by the light source is transmitted through the light pipe to the light emitting panel. A suspension structure is arranged to suspend the housing assembly, wherein when the panel mode adaptor is disconnected from the housing assembly and the housing assembly is suspended from the suspension structure, light emitted from the housing can be projected onto a patient.
A drug delivery apparatus includes a mouthpiece portion having an internal conduit for delivering an aerosol including the drug to the patient. The internal conduit has an inlet end and a mouthpiece end that is structured to be received in the patient's mouth. The mouthpiece portion is structured to operate at a substantially fixed inhalation flow rate when the patient inhales through the mouthpiece end. The apparatus further includes an aerosol generator for generating the aerosol from a drug supply and injecting the aerosol into a first region within the mouthpiece portion located between an outlet of the aerosol generator and the inlet end of the conduit. The mouthpiece portion also includes a flow accelerating mechanism that causes a localized flow rate at the first region to be greater than the inhalation flow rate. A method is also provided that increases the local flow rate within the mouthpiece portion.
A61M 16/00 - Dispositifs pour agir sur le système respiratoire des patients par un traitement au gaz, p. ex. ventilateursTubes trachéaux
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
B05D 7/14 - Procédés, autres que le flocage, spécialement adaptés pour appliquer des liquides ou d'autres matériaux fluides, à des surfaces particulières, ou pour appliquer des liquides ou d'autres matériaux fluides particuliers à du métal, p. ex. à des carrosseries de voiture
B65D 83/06 - Réceptacles ou paquets comportant des moyens particuliers pour distribuer leur contenu pour distribuer un matériau pulvérulent ou granulaire
51.
System and method for monitoring information related to sleep
A system configured to monitor ambient illumination experienced by a subject. In one embodiment, the system comprises an illumination sensor, a timer, and a storage module. The illumination sensor is configured to monitor an intensity of ambient illumination within two or more wavelength ranges by generating one or more output signals that convey information related to the intensity of ambient illumination within the two or more wavelength ranges. The timer is configured to indicate the passage of periods of time. The storage module is configured to store information related to the intensity of ambient illumination within the two or more wavelength ranges, as conveyed by the one or more output signals, for individual periods of time. The system is portable to be carried by the subject.
A61B 5/103 - Dispositifs de mesure pour le contrôle de la forme, du dessin, de la dimension ou du mouvement du corps ou de parties de celui-ci, à des fins de diagnostic
A61B 5/04 - Mesure de signaux bioélectriques du corps ou de parties de celui-ci
G08B 23/00 - Alarmes réagissant à des conditions indésirables ou anormales, non spécifiées
G01J 1/42 - Photométrie, p. ex. posemètres photographiques en utilisant des détecteurs électriques de radiations
G01J 3/51 - Mesure de couleurDispositifs de mesure de couleur, p. ex. colorimètres en utilisant des détecteurs électriques de radiations en utilisant des filtres de couleur
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/11 - Mesure du mouvement du corps entier ou de parties de celui-ci, p. ex. tremblement de la tête ou des mains ou mobilité d'un membre
G01J 1/02 - Photométrie, p. ex. posemètres photographiques Parties constitutives
A patient treatment system and method comprising a patient circuit, a pressurizing flow module disposed in the patient circuit, a humidifier disposed in the patient circuit, a monitor, sensors within the patient circuit, and a processor. The patient circuit delivers a flow of gas from a gas source to an airway of a patient. The pressurizing flow module elevates the pressure of the gas within the patient circuit. The humidifier elevates the humidity of the gas in the patient circuit to a circuit humidity level. The monitor monitors at least one parameter of the gas from the gas source. The sensors generate corresponding signals that can be processed to estimate a rate at which vapor is added to the gas in the patient circuit. The processor determines the humidity level of the gas in the patient circuit downstream from the humidifier based on the signals generated by the sensors and the at least one parameter of the gas in the gas source.
A therapy system adapted to treat a patient's ventilatory instability using a ventilatory therapy, a gas modulation therapy, or both. The algorithm implemented by the therapy system monitors the ventilatory instability, such as Cheyne Stokes Respiration (CSR), mixed apneas, CPAP emergent apneas, and complex sleep disordered breathing (CSDB) and treats the ventilatory instability. The algorithm also determine a reference point with respect to the ventilatory instability. The therapy delivery system initiate the treatment based on the reference point.
F16K 31/02 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques
A respiratory mask is provided having cushion and a shell wherein the cushion has a frustum portion that extends towards the face of the user to provide a larger more stable and comfortable interface with a user which is better able to conform to the complex geometry of the user's face.
A portable oxygen concentrator includes a pair of sieve beds, a compressor for delivering air to the sieve beds, a reservoir receiving oxygen-enriched gas from the sieve beds, and an air manifold attached to the first ends of the sieve beds. A set of valves operate under the control of a controller for selectively opening and closing the valves to alternately charge and purge the sieve beds to deliver oxygen-enriched gas into the reservoir. In addition, an exhaust passage communicates with the plurality of sieve beds to deliver a flow of nitrogen evacuated from the sieve beds such that the flow of the nitrogen is directed at or across the controller to cool the controller.
A method for selecting a device adapted to treat disordered breathing includes determining a number of characteristics associated with at least a portion of the airway of a patient, comparing each of at least some of the number of characteristics to a corresponding threshold, and selecting such a device in response to the comparison. An alternative method for selecting a device adapted to treat disordered breathing includes delivering a flow of breathing gas to the airway of a patient, determining a minimum effective therapeutic pressure associated with such patient, and selecting, relative to the minimum effective therapeutic pressure, an oral appliance or one of a number of patient interface devices.
An electronic oxygen conserving device for controlling a flow of oxygen from an oxygen storage container to a user. When a conserve setting is selected, a flow of oxygen travels through an oxygen regulating valve that has an open state and a closed state. A temporary electrical charge or current is provided to the oxygen regulating valve during the initial inhalation of oxygen by an individual, opening the regulating valve opens to delivery oxygen to the user. The oxygen regulating valve remains open even after termination of the electric current. After a predetermined timed delivery dose or upon exhalation by the individual, a subsequent temporary electric charge or current is provided to oxygen regulating valve, closing the regulating valve closes to prevent delivery of oxygen to the user, thus conserving oxygen. The oxygen regulating valve remains closed even after termination of the subsequent electric current.
A61M 16/06 - Masques respiratoires ou pour l'anesthésie
F16K 31/06 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant
A61M 16/00 - Dispositifs pour agir sur le système respiratoire des patients par un traitement au gaz, p. ex. ventilateursTubes trachéaux
A62B 7/04 - Appareils respiratoires à air ou oxygène comprimé et avec valves commandées par les poumons
An apparatus and method of indicating the reliability of an end-tidal gas value that includes measuring a plurality of gas concentration values, measuring a plurality of ventilation values, determining an end-tidal gas value from the gas concentration values, determining the degree of ventilatory stability from the ventilation values, and providing an estimate of reliability of the end-tidal gas values using the degree of ventilatory stability.
A method of delivering a flow of gas to a patient's airway via a pressure generating system and a patient circuit. A controller receives a treatment set point from an input source and determines an adjusted treatment set point based on the treatment set point and a comfort feature function, which in one embodiment, is not based on a physiological condition of such a patient. In another embodiment, the controller provides a respiratory treatment therapy during a therapy session based on the treatment set point and the comfort feature, which is modified automatically during a therapy session without user intervention based on a comparison of the treatment set point to a treatment set point variable. The controller controls the operation of the pressure generating system based on the adjusted treatment set point or the combination of the treatment set point and the comfort feature.
F16K 31/02 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques
60.
Pressure support system with automatic comfort feature modification
A pressure support system that delivers a flow of gas to a patient's airway via a pressure generating system and a patient circuit. A controller receives a treatment set point from an input source and determines an adjusted treatment set point based on the treatment set point and a comfort feature function, which in one embodiment, is not based on a physiological condition of such a patient. In another embodiment, the controller provides a respiratory treatment therapy during a therapy session based on the treatment set point and the comfort feature, which is modified automatically during a therapy session without user intervention based on a comparison of the treatment set point to a treatment set point variable. The controller controls the operation of the pressure generating system based on the adjusted treatment set point or the combination of the treatment set point and the comfort feature.
F16K 31/02 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques
61.
Sidestream gas sampling system with detachable sample cell
A sidestream sampling system includes a sidestream gas measurement assembly and a sample cell configured to be assembled therewith. The sidestream gas measurement assembly includes a receptacle for removably receiving at least a portion of the sample cell. The sample cell is coupled to a sampling tube that is configured to communicate with an airway of an individual. When the sample cell is assembled with the sidestream gas measurement assembly, a window of the sample cell is oriented toward a corresponding source and/or detector of the sidestream gas measurement assembly to facilitate monitoring of an amount of at least one gas or vaporized material in an individual's respiration.
A portable oxygen concentrator includes a reservoir adapted to store oxygen-enriched gas, a delivery valve adapted to communicate with the reservoir, a pressure sensor adapted to measure a reservoir pressure within the reservoir and to measure a pressure drop across the delivery valve, and an input device adapted to receive a pulse does setting. A controller coupled to the pressure sensor and monitors the reservoir pressure and the pressure drop across the delivery valve. The controller is also coupled to the delivery valve to selectively open the delivery valve for pulse durations based on the pulse dose setting to deliver pulses of gas from the reservoir to a user. The controller further adjusts the pulse durations based at least partially upon the reservoir pressure and the pressure drop across the delivery valve.
A patient interface includes a body portion configured to communicate with at least one fluid path, and at least one nostril interface extending from the body portion. The nostril interface includes an insertion portion configured to be inserted into a nostril of a patient and to be in communication with the at least one fluid path. In an embodiment, the insertion portion includes a plurality of laterally directed openings configured to communicate fluid between the fluid path and the nostril. The patient interface also includes a seal portion that is constructed and arranged to provide a seal between the patient interface and the nostril.
A patient interface for communicating fluids to and/or from a patient's nasal cavity and/or oral cavity is disclosed. In addition, a patient interface for fluid and physiological function monitoring proximate to the patient's nasal cavity and/or oral cavity is disclosed. An apnea monitor and a method for monitoring apnea are also disclosed.
The present invention describes methods and systems to provide a liquid oxygen delivery system that efficiently delivers therapeutic oxygen in accordance with a patient's respiratory cycle. An exemplary embodiment of the present invention provides a portable liquid oxygen delivery system having a liquid oxygen device, an oxygen conserving device, and an accumulator device. The portable liquid oxygen delivery system has a collective gaseous oxygen volume and the accumulator device is enabled to actuate and reduce the collective gaseous oxygen volume.
The present invention provides a mask for sealing an area around a patient's mouth and nose for delivery of an aerosol. The mask includes a mask body having an opening for reception of the aerosol and a mask seal configured to engage a patient's face around the nose and mouth. An adapter is arranged to be removably attached to the mask body for removably coupling the mask body to an aerosol delivery device.
The invention pertains to a ventilator that delivers a flow of gas to an airway of a user, and to communicate a flow of gas from the airway of the user in a controlled manner. The ventilator includes a conduit (1, 3) that carries a flow of gas from the airway of a patient, a first valve (7) coupled to the conduit and adapted to control a pressure or rate of the flow of gas exhausted from the conduit, a first sensor (10) coupled to the conduit and adapted to monitor a pressure of the gas in the conduit, and a controller (12) adapted to control the first valve based on an output of the first sensor. A restrictor (8) is provided in the conduit between the pressure sensor and the patient such that a first volume is defined in the conduit between the first valve and the restrictor and a second volume is defined in the conduit between the patient and the restrictor. The controller controls actuation of the first valve based on a pressure of the first volume monitored by the first sensor.
A method of treating sleep disordered breathing in a patient includes the steps of monitoring the patient for a pre-inspiratory drive signal indicative of the breathing cycle by sensing electroneurogram activity of a hypoglossal nerve of the patient; and electrically stimulating the hypoglossal nerve of the patient following each detection of the pre-inspiratory drive signal. An implantable apparatus for stimulating a hypoglossal nerve of a patient for the treatment of sleep disordered breathing includes an electrode positioned at least partially around the hypoglossal nerve with a monitoring contact and a stimulation contact and a controller operatively coupled to the monitoring contact and the stimulation contact. The monitoring contact monitors the electroneurogram activity of the hypoglossal nerve for a pre-inspiratory drive signal indicative of the onset of inspiration and sends a signal to the controller which in turn causes the stimulating electrode to electrically stimulate the hypoglossal nerve.
A mainstream gas monitoring system and method that includes using a mainstream airway adapter and a gas sensing assembly associated with the airway adapter to measure an analyte of a gas flow through the adapter. A gas sensing portion outputs a signal indicative of the analyte in a gas flow in the mainstream airway adapter. A processing portion receives the signal from the gas sensing portion and determines an amount of the analyte in the gas flow based on the signal from the gas sensing portion. The processing portion determines whether the oxygen measurements are of sufficient quality for their intended use, such as for measuring oxygen consumption or metabolic estimations. Quality measurements may be used to improve accuracy of derived metabolic estimations. Methods are provided by which carbon dioxide measurements can be processed and substituted for direct oxygen measurement for all or part of a respiratory cycle.
A mainstream gas monitoring system and method that includes a mainstream airway adapter, and a gas sensing assembly associated with the mainstream airway adapter to measure an analyte of a gas flow through the adapter. A gas sensing portion outputs a signal indicative of the analyte in a gas flow in the mainstream airway adapter. A processing portion receives the signal from the gas sensing portion and determines an amount of the analyte in the gas flow based on the signal from the gas sensing portion. The gas sensing portion is subject to temperature variations associated with variations in flow rate and direction of respiratory gases. Methods are described that utilize the measurement of instantaneous respiratory flow rate combined with estimates of gas temperature and composition to estimate the sensor cooling effects from which a flow based time varying compensation factor is derived.
A patient interface device that includes a body portion comprising a pair of arms and a chin support. A first end portion of each arm in the pair of arms is coupled to an opposite end of the chin support. The chin support is adapted to be disposed under the mandible responsive to the patient interface device being donned by a user. At least one headgear attachment element is provided on each arm in the pair of arms. A circuit portion is provided at a second end portion of each arm in the pair of arm. A patient interface portion is coupled to the circuit portion.
A mainstream gas monitoring system and method that includes a using a mainstream airway adapter, and a gas sensing assembly associated with the mainstream airway adapter to measure an analyte of a gas flow through the adapter. A gas sensing portion outputs a signal indicative of the analyte in a gas flow in the mainstream airway adapter. A processing portion receives the signal from the gas sensing portion and determines an amount of the analyte in the gas flow based on the signal from the gas sensing portion. The processing portion also compensates for volumetric differences between the gas flow during inspiration and the gas flow during expiration to maximize the accuracy in the measurements made using such a system and method.
One aspect of the invention relates to a system adapted to calibrate a determination of information related to one or more gaseous analytes in a body of gas being delivered to an objective by a gas source. In one embodiment the system comprises a partial pressure sensor, a total pressure monitor, a partial pressure module, and a calibration module. The partial pressure sensor generates an output signal related to the partial pressure of the one or more gaseous analytes in the body of gas. The total pressure monitor determines the total pressure of the body of gas. The partial pressure module determines the partial pressure of the one or more gaseous analytes in the body of gas according to a partial pressure function, wherein the partial pressure function describes the partial pressure of the one or more gaseous analytes in the body of gas as a function of the output signal generated by the partial pressure sensor. The calibration module that calibrates the partial pressure module by determining the partial pressure function.
G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c.-à-d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
74.
Ventilating apparatus and method enabling a patient to talk with or without a trachostomy tube check valve
A method of operating a ventilator assembly having inhalation and exhalation passages communicating with one another, and a respiration assembly that can perform repetitive respiratory cycles. The method includes (a) connecting the conduit with an open end of an endotracheal tube positioned within the trachea so that the open end leads into the airway below the vocal cords, (b) repetitively cycling the respiration assembly so that during the inhalation phase, gas in the inhalation passage flows through the endotracheal tube and into the airway, and during the exhalation phase, an exhalation valve is maintained relatively closed and the exhaled gases flow pass the vocal cords and out of the mouth thereby facilitating the patient's ability to speak, and (c) monitoring ring the pressure within at least one of the passages during both phases for determining the pressure within the patient for use in operating the ventilator assembly.
The present system is an adsorption system for separating air into a concentrated gas component, which has an air supply, a compressor for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the compressed air supply into a concentrated gas component. The adsorption system delivers at least 5 liters per minute (LPM) of concentrated gas component from the molecular sieve material in which the system has a specific total weight per LPM <9 lbs/LPM. Additionally, an output quantity of the concentrated gas is delivered by the adsorption system and a purging quantity of the concentrated gas is dispensed into a sieve chamber of the adsorption system undergoing a purge cycle. The purging quantity has a value equal to or less than the difference between the maximum quantity and the output quantity, and the purging quantity is controlled based on the output quantity.
B01D 53/02 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse
The present system is an adsorption system for separating air into a concentrated gas component, which has an air supply, a compressor for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the compressed air supply into a concentrated gas component. The adsorption system delivers at least 5 liters per minute (LPM) of concentrated gas component from the molecular sieve material in which the system has a specific total weight per LPM<9 lbs/LPM. Additionally, an output quantity of the concentrated gas is delivered by the adsorption system and a purging quantity of the concentrated gas is dispensed into a sieve chamber of the adsorption system undergoing a purge cycle. The purging quantity has a value equal to or less than the difference between the maximum quantity and the output quantity, and the purging quantity is controlled based on the output quantity.
B01D 53/02 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse
77.
Sidestream gas sampling system with closed sample circuit
The invention provides a sidestream gas sampling apparatus having a gas sampling circuit and a set of reusable elements. The gas sampling circuit carries the gas sample from a main flow of gas, through a sample analysis area, and vents the gas sample to an analyzed gas destination. The reusable components provide motive forces to remove the gas sample through the gas sampling circuit and provide analysis components for the gas sampling apparatus while not making contact with the gas sample. As such, the reusable components do not become contaminated by the gas sample and do not have to be cleaned or sterilized between applications.
A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generates a flow of breathing gas at an inspiratory positive airway pressure (IPAP) during inspiration and at an expiratory positive airway pressure (EPAP) during expirations. A controller monitor at least one of the following conditions: (1) snoring, (2) apneas, (3) hypopneas, or (4) a big leak in the pressure support system and adjusts the IPAP and the EPAP based on the occurrence of any one of these conditions.
A method and corresponding system for providing breathing cues includes monitoring respiration of a user and determining a user breathing frequency including an inspiration portion and an expiration portion of the breathing, supplying a high positive air pressure to the user during the inspiration portion and a low positive air pressure during the expiration portion in substantial synchronicity with the user's respiration, comparing the user breathing frequency with a target breathing frequency, and when the user breathing frequency is greater than the target breathing frequency, increasing, in a predetermined manner, a time over which the high positive air pressure is supplied to the user, and adjusting a time over which the low positive pressure air pressure is supplied to the user.
A patient interface device including a cushion assembly having a cushion-in-a-cushion arrangement and a system for supplying a flow of gas to a patient using such an interface device. The patient interface includes a mask shell having a patient side and an outer side opposite the patient side adapted for receiving a supply of gas. A seal cushion contacts a first area of a patient's face to form a seal therewith. A support cushion encircles the seal cushion and includes a first end portion that contacts a second area of a patient's face.
An oral appliance is provided for the treatment of snoring and obstructive sleep apnea. The oral appliance includes an upper tray adaptable to conform to a user's maxillary dentition and a plurality of lower trays, each of the lower trays adaptable to conform to the user's mandibular dentition. At least some of the lower trays are structured to engage the upper tray, each of the lower trays are structured to impart a different fixed amount of mandibular advancement.
A61F 5/37 - Dispositifs pour comprimer le corps ou des parties du corpsChemises comprimantes
A61F 11/00 - Procédés ou dispositifs pour le traitement des oreilles ou de l'ouie Prothèses auditives non électriquesProcédés ou dispositifs permettant au patient d’obtenir une perception auditive par des sens physiologiques autres que l’ouïeDispositifs de protection pour les oreilles, portés sur le corps ou dans la main
A flexible connector that couples a delivery conduit to a patient interface device and a pressure support system that includes such a flexible connector. The flexible connector of the present invention prevents disruption of the seal between the patient interface and the patient's face. The flexible connector may have a bellows portion with a longitudinally directed portion, a narrowed neck portion, or a plurality of corrugations. The flexible connector may further have a swivel portion and/or an exhaust member, and/or a hinge member.
3, and gas a battery life of at least about 8 hours. The present invention also using a liquefaction or transfill system in combination with such an oxygen concentrator.
A system is provided for delivering a flow of breathing gas to an airway of a patient. The system includes a pressurizing flow module that generates a pressurized flow of breathing gas and a patient circuit coupled to the pressurizing flow module configured to communicate the flow of breathing gas to an airway of a patient. The system includes a sensor for monitoring a characteristic of a breathing pattern of the patient a controller that communicates with the sensor configured to increase a fraction of inspired carbon dioxide if the characteristic exceeds an upper threshold value and to provide servo-ventilation if the characteristic is less than a lower threshold value. The upper threshold value and the lower threshold value are changed based on the monitored characteristic of the breathing pattern of the patient.
A seal that contacts a portion of a patient to provide a comfortable interface between an external device, such as a respiratory mask, and the patient. The seal includes an elastic casing filled with a soft gel substance having a cone penetration of from about 5 to 200 penetrations.
A respiratory mask is provided having an outer shell coupled to a cushion for the delivery of a gas to a user. The cushion of the respiratory mask has a pleat and varied wall thicknesses about the device in order to provide varying degrees of flexibility and support about the cushion.
A method and system of coordinating an intensifier and sieve beds. At least some of the illustrative embodiments are methods comprising coordinating control of an intensifier with cycles of a sieve bed fluidly coupled to the intensifier such that there is at least one low pressure stroke of the intensifier and at least one high pressure stroke of the intensifier during a fill cycle of the sieve bed.
A pressure support system that comprises a patient circuit, a docking assembly, and a tank. The patient circuit delivers a pressurized flow of breathable gas to a patient. The docking assembly has an inlet and an outlet that is adapted to receive the pressurized flow of breathable gas, and is also adapted to be connected with the patient circuit. The tank is constructed and arranged to be removably connected with the docking assembly, and enables the pressurized flow of breathable gas to pass therethrough. The tank is also adapted to contain a liquid such that a humidity level of the pressurized flow of breathable gas is elevated as the pressurized flow of breathable gas passes therethrough.
A humidifier for use with a pressure support system. The humidifier includes a body having an inlet, a fluid holding chamber, and an outlet. The inlet is positioned upstream and in fluid communication with the fluid holding chamber. The outlet is positioned downstream of and in fluid communication with the fluid holding chamber. A back-flow preventing valve is positioned upstream of the fluid chamber. The back-flow preventing valve is movable between an open position, in which the inlet is unblocked, and a closed position in which the inlet is blocked. In the closed position, the back-flow preventing valve prevents fluid, fluid vapor, or both from entering the pressure support via the inlet to the humidifier.
A ventilator of the present invention includes a housing, a gas flow generator disposed in the housing, a gas outlet port provided on an exterior surface of the housing, and a first conduit coupling the gas flow generator to the gas outlet port. A gas inlet port is also provided on an exterior surface of the housing. A second conduit couples the gas inlet port to a first exhaust valve in the housing that regulates a flow of exhaust gas from the second conduit. A second exhaust valve in the housing is coupled to the first conduit and regulates a flow of exhaust gas from the first conduit. A controller coupled to second exhaust valve causes the second exhaust valve to change a degree of flow restriction based on a respiratory phase of a patient coupled to the ventilator when the ventilator is operating in a single-limb ventilation configuration.
A humidifier for use with a pressure support system. The humidifier includes a body having an inlet, a fluid holding chamber, and an outlet. The inlet is positioned upstream and in fluid communication with the fluid holding chamber. The outlet is positioned downstream of and in fluid communication with the fluid holding chamber. A back-flow preventing valve is positioned upstream of the fluid chamber. The back-flow preventing valve is movable between an open position, in which the inlet is unblocked, and a closed position in which the inlet is blocked. In the closed position, the back-flow preventing valve prevents fluid, fluid vapor, or both from entering the pressure support via the inlet to the humidifier.
A patient interface that reliably and comfortably seals a user's face by providing an oral-nasal mask that includes an integrated nasal interface. The patient interface includes a seal member having an oral cushion portion configured to surround the user's mouth and a nasal interface portion that provides an interface with the user's nose. The seal member, including the oral cushion portion and the nasal interface portion, is a unitary member. Finally, the nasal interface portion remains below the bridge of the nose.
A multi-chamber canister for a pressure swing absorption system within a general housing assembly. The chambers include a first molecular sieve chamber for receiving a first molecular sieve for separating air from the ambient environment into a concentrated gas and at least a second molecular sieve chamber disposed within the housing assembly for receiving a second molecular sieve for separating air from the ambient environment into a concentrated gas component. Furthermore, a supply chamber is disposed within the housing for receiving air from the ambient environment and for communicating air to either first or second molecular sieve chambers.
A multi-chamber canister for a pressure swing absorption system within a general housing assembly. The chambers include a first molecular sieve chamber for receiving a first molecular sieve for separating air from the ambient environment into a concentrated gas and at least a second molecular sieve chamber disposed within the housing assembly for receiving a second molecular sieve for separating air from the ambient environment into a concentrated gas component. Furthermore, a supply chamber is disposed within the housing for receiving air from the ambient environment and for communicating air to either first or second molecular sieve chambers.
A system and method of monitoring a patient, that in one embodiment, comprises determining a flow of gas generated by respiration of the patient, identifying a respiratory event entry and a respiratory event exit based on the flow of gas generated by respiration of the patient, and identifying a respiratory event when the identification of the respiratory event entry is followed by the identification of respiratory event exit.
The patient interface (10) of the present invention includes a pair of nasal pillows (28) for delivery of gas. The nasal pillows (28) project from a partition (22) that separates an interior of the patient interface into a first chamber (24) that is configured to receive the nose of a patient when the patient interface is mounted operatively on the face of the patient and into which the nasal pillows (28) project and a second chamber (26) that has a port (30) for delivery of gas to and from the nasal pillows (28) via the second chamber (26).
A patient interface of the present invention includes a faceplate including a plurality of headgear attachment elements, a seal member operatively coupled to the faceplate; and an adjustment mechanism coupling the seal member to the faceplate. The adjustment mechanism controls the position of the seal member relative to the faceplate such that the seal member is moveable from a first position to a second position and is maintained in the second position during use of the patient interface after being moved to the second position.
A gas delivery system comprising an external housing, a flow generator, and a vibration damper body. The flow generator is disposed in the external housing, and has a flow generator housing with a peripheral surface and a lower surface. The vibration damper body is disposed within the external housing and is formed of one or more compliant materials that are shaped to be complementary to the peripheral surface of the flow generator housing so as to engage the peripheral surface of the flow generator housing. The vibration damper body has a lower surface attached to a bottom surface of the external housing, and also has a peripheral surface formed such that at least one air gap is created between at least a portion of the vibration damper body and the external housing.
A61M 16/00 - Dispositifs pour agir sur le système respiratoire des patients par un traitement au gaz, p. ex. ventilateursTubes trachéaux
F01D 5/00 - AubesOrganes de support des aubesDispositifs de chauffage, de protection contre l'échauffement, de refroidissement, ou dispositifs contre les vibrations, portés par les aubes ou les organes de support
Therapy comfort feature used as a component part of auto-titrating positive airway pressure devices to reduce patient pressure during breathing exhalation while providing a pressure stability level before reaching breathing inspiration
