A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. The scaffold, after being deployed by the balloon, provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold has a pattern including an asymmetric closed cell connecting links connecting the closed cells.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/82 - Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
A61F 2/844 - Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents folded prior to deployment
A61F 2/86 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure
A61F 2/89 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
A61F 2/91 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
A61F 2/95 - Instruments specially adapted for placement or removal of stents or stent-grafts
A61F 2/958 - Inflatable balloons for placing stents or stent-grafts
A61L 27/00 - Materials for prostheses or for coating prostheses
A61L 31/06 - Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
A61L 31/14 - Materials characterised by their function or physical properties
B21D 39/04 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with tubesApplication of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with rods
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
B29K 67/00 - Use of polyesters as moulding material
A scaffold includes a radiopaque marker connected to a strut. The marker is retained within the strut by a head at one or both ends. The marker is attached to the strut by a process that includes forming a rivet from a radiopaque bead and attaching the rivet to the marker including deforming the rivet to enhance resistance to dislodgement during crimping or balloon expansion. The strut has a thickness of about 100 microns.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/844 - Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents folded prior to deployment
A61F 2/86 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure
A61F 2/89 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
A guidewire formed from a superelastic material has a proximal section and a distal section. In order to improve torque and pushability in the proximal section, a first wire is wound clockwise onto the proximal section to form a first coil and a second wire is wound counterclockwise onto the first coil to form a second coil.
The invention provides devices, systems and methods for tissue approximation and repair at treatment sites. The devices, systems and methods of the invention will find use in a variety of therapeutic procedures, including endovascular, minimally-invasive, and open surgical procedures, and can be used in various anatomical regions, including the abdomen, thorax, cardiovascular system, heart, intestinal tract, stomach, urinary tract, bladder, lung, and other organs, vessels, and tissues. The invention is particularly useful in those procedures requiring minimally-invasive or endovascular access to remote tissue locations, where the instruments utilized must negotiate long, narrow, and tortuous pathways to the treatment site. In addition, many of the devices and systems of the invention are adapted to be reversible and removable from the patient at any point without interference with or trauma to internal tissues.
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/10 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for applying or removing wound clampsWound clamp magazines
A mold is used to form a solder joint to join the distal end of the guidewire to a wire coil. The mold has a cavity that can have different configurations so that the solder joint can be any of bullet shaped, micro-J shaped, cone shaped, truncated cone shaped, or have a textured surface.
B21F 15/08 - Connecting wire to wire or other metallic material or objectsConnecting parts by means of wire wire with wire with additional connecting elements or material making use of soldering or welding
B22D 18/02 - Pressure casting making use of mechanical pressing devices, e.g. cast-forging
B22D 19/04 - Casting in, on, or around, objects which form part of the product for joining parts
B23K 1/08 - Soldering by means of dipping in molten solder
A shaping tool is used to form a bend in the distal end of a guidewire. The guidewire distal end is inserted through a channel and into a cavity of the shaping tool. Using hand pressure, a fist member is moved axially relative to a second member of the shaping tool, thereby moving the cavity relative to the channel and imparting a bend in the distal end of the guidewire.
e.g., e.g., graphical, audible, and/or haptic alerts). The detected changes may relate to changes in the volume of a fluid surrounding the medical device, such as reductions in blood pool volume associated with occlusions, injection of contrast media, or passage of the device into a cardiac vessel from a cardiac chamber. Detected changes may also relate to encountering damaged tissue, such as tissue that includes an ablation lesion.
A61B 5/053 - Measuring electrical impedance or conductance of a portion of the body
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
Disclosed are methods of treating peripheral artery disease (particularly chronic limb threatening ischemia (CLTI)) with implantation of a polymeric scaffold into a vessel located below the knee. After implantation into a blood vessel of the patient below the knee, efficacy of the procedure is measured by performing duplex ultrasound (DUS) and/or angiography to measure binary restenosis at the site of the target lesion, where binary restenosis is defined as the presence of a hemodynamically significant restenosis of >50% identified through angiography, or peak systolic velocity ratio (PSVR) ≥2.0 as identified by DUS. The scaffold is made from a bioresorbable polymer. The scaffold has a pattern of interconnected elements. The interconnected elements include a plurality of rings connected by links, wherein each ring includes struts and crowns, and the struts are configured to fold at the crowns when the scaffold is crimped to a balloon.
A61F 2/958 - Inflatable balloons for placing stents or stent-grafts
A61B 6/50 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications
Embodiments are disclosed of a catheter system (200) including a catheter and a guidewire trap (216). The catheter includes a catheter axis extending in a longitudinal direction, a sidewall (208) having an inner surface (206) bounding a catheter lumen, and a locking mechanism (214) projecting from the inner surface toward the catheter axis in a radial direction normal to the longitudinal direction. The guidewire trap is positioned in the catheter lumen and has a trap body including a trap lumen (218) extending in the longitudinal direction and adapted to receive a guidewire (220) therein, and a collet formed at a trap distal end. The collet includes a tapered outer surface adapted to engage with the locking mechanism in the catheter lumen. When the guidewire trap is pushed in a distal direction through the catheter lumen, the locking mechanism engages with the tapered outer surface to cause the collet to contract radially toward the catheter axis.
A pulmonary thrombectomy system includes a catheter, a peristaltic pump, and a clot visualization container. The peristaltic pump is couplable to the catheter such that a central lumen of the catheter can be in fluid communication with a pump inlet of the peristaltic pump. The clot visualization container is coupled to a pump outlet of the peristaltic pump. The clot visualization container includes a housing containing a clot filter having several first pores, and a blood filter having several second pores. The second pores are smaller than the first pores.
A61B 17/22 - Implements for squeezing-off ulcers or the like on inner organs of the bodyImplements for scraping-out cavities of body organs, e.g. bonesSurgical instruments, devices or methods for invasive removal or destruction of calculus using mechanical vibrationsSurgical instruments, devices or methods for removing obstructions in blood vessels, not otherwise provided for
This invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more links. A Y-shaped member is comprised of a U-shaped member and a link having a curved portion and a straight portion to improve the flexibility and thereby improve the fatigue performance of the Y-link junction.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/89 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
A support system includes a post having first and second portions. The first portion is configured to be positioned at least partially below ground, and the second portion is configured to be coupled to the first portion and above the ground. The second portion has first and second post apertures. A U-bolt is configured to abut the first portion such that first and second legs of the U-bolt are positioned, respectively, at least partially through the first and second post apertures. A plate having first and second plate apertures is configured to abut the second portion such that the first and second plate apertures at least partially align, respectively, with the first and second post apertures. First and second nuts are configured to be secured, respectively, to the first and second legs of the U-bolt to help secure the plate and the second portion to the first portion.
A method of removing needles operatively associated with suture through tissue surrounding an access tract, the method comprising advancing an elongate distal member along the access tract, locating an elongate proximal member in contact with tissue surrounding the puncture site, the elongate proximal member comprising a guide disposed within the elongate proximal member, a perimeter of the guide forming a plurality of needle receiving gaps that are circumferentially spaced about a needle deployment actuator with a portion of the guide disposed between adjacent needle receiving gaps extending outwardly towards a wall of the lumen of the elongate proximal member, the needle deployment actuator extending to the elongate distal member and being configured to initiate proximal movement of a needle toward an opening of the elongate proximal member, and actuating the needle deployment actuator to move the needle toward the opening of the elongate proximal member.
A61B 17/06 - NeedlesHolders or packages for needles or suture materials
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 50/30 - Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments
A61B 50/36 - Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments for collecting or disposing of used articles
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
19.
SYSTEMS, METHODS, AND DEVICES FOR CLOSING HOLES IN BODY LUMENS
A device for closing an opening in a body lumen, the device having a first elongate member with a first lumen, a second elongate member distal the first elongate member, and a needle assembly slidably cooperating with the first elongate member to position a plurality of sutures within the lumen of the first elongate member. The needle assembly includes a needle base and a plurality of needle portions extending from the needle base. Slidable movement of the needle assembly in relation to the first elongate member locates the plurality of sutures selectively mounted to the needle assembly within the first lumen.
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/06 - NeedlesHolders or packages for needles or suture materials
A torque device for torquing and advancing a guidewire into a patient's vascular system. The torque device is configured for single-handed use and can be used for gripping the guidewire to provide axial and rotational movement to the guidewire.
A vessel closure device for delivering immediate hemostasis at a puncture site in a wall of a blood vessel includes an intravascular anchor having one or more suture attachment points, an extravascular cap having a lumen, a sealant, and a suture connected to at least one of the one or more suture attachment points of the intravascular anchor and threaded through the lumen of the extravascular cap, wherein each of the intravascular anchor, extravascular cap, sealant, and suture are formed of bioabsorbable materials.
Catheter having an elongate tubular shaft including an inflation lumen and a guidewire lumen defined therein, the guidewire lumen extending along at least a distal length of an inner tubular member of the elongate tubular shaft. The catheter includes a distal tip member having a proximal end and a distal end, wherein the distal tip member is monolithic and the proximal end of the distal tip member is secured to a distal end of the inner tubular member. The catheter includes a balloon having a proximal portion and a distal portion, the proximal portion of the balloon sealingly coupled to the distal portion of the elongate tubular shaft. The distal portion of the balloon is sealingly coupled to the distal tip member and the balloon defines an inner chamber in communication with the inflation lumen, wherein the proximal end of the distal tip member is disposed within the inner chamber.
The present disclosure is directed to a multi-segment device comprising an elongate first portion comprising a first metallic material, an elongate second portion comprising a different metallic material, the first and second elongate portions being directly joined together end to end, a heat affected zone surrounding an interface of the elongate first portion and the elongate second portion, a shapeable distal end formed from at least a portion of the elongate second portion, a coil disposed about a portion of the elongate second portion.
A scaffold includes a radiopaque marker connected to a strut. The marker is retained within the strut by a head at one or both ends. The marker is attached to the strut by a process that includes forming a rivet from a radiopaque bead and attaching the rivet to the marker including deforming the rivet to enhance resistance to dislodgement during crimping or balloon expansion. The strut has a thickness of about 100 microns.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/844 - Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents folded prior to deployment
A61F 2/86 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure
A61F 2/89 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
A medical apparatus that includes a distal member, a needle disposed in the distal member and proximally advanceable from the distal member, and a needle capture portion positioned proximal to the distal member and which includes a through-hole to direct the needle from the needle capture portion towards a graspable member at a trajectory narrower than a trajectory of the needle from the distal member to the needle capture portion.
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 17/00 - Surgical instruments, devices or methods
A device for positioning suture through tissue, the device including a proximal elongate member having a longitudinal axis, the proximal elongate member being configured to receive a needle, and a tissue locator disposed distal the proximal elongate member, the tissue locator being coupled to an elongate member extending through the proximal elongate member and including a leg with a needle receiving opening configured to accommodate the needle. Proximal movement of the elongate member compresses the tissue locator and folds the leg of the tissue locator, the leg transitioning from extending longitudinally to extending outwardly in relation to a position of the leg in a pre-compressed state.
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/06 - NeedlesHolders or packages for needles or suture materials
An access closure device for closing an opening in tissue is provided. The access closure device may comprise an implant delivery system and a sealant delivery mechanism. The implant delivery system may comprise a suture, a procedural sheath, a delivery tube, an deployable implant and a suture attached to the implant. The sealant delivery mechanism may comprise a sealant deliverable over a suture through the procedural sheath, configured to settle proximal an implant located in an access track.
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/12 - Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
A torque device for gripping and manipulating a guidewire for advancing the guidewire into a patient's vascular system. The torque device is configured for single-handed use and can be opened for repositioning the torque device relative to the guidewire and closed for gripping the guidewire to prevent axial and rotational movement relative to the guidewire. The torque device grips the guidewire at multiple spaced apart locations on the guidewire.
A guidewire for use in penetrating through complex and stenosed lesions. The distal tip of the guidewire has a roughened surface to increase frictional engagement with calcified and fibrous tissue to increase the penetration of the distal tip and the guidewire into and through the lesion and reduce the likelihood of deflection of the guidewire tip. The average surface roughness of the distal tip is in the range from 1 micron to 200 microns.
A61B 17/22 - Implements for squeezing-off ulcers or the like on inner organs of the bodyImplements for scraping-out cavities of body organs, e.g. bonesSurgical instruments, devices or methods for invasive removal or destruction of calculus using mechanical vibrationsSurgical instruments, devices or methods for removing obstructions in blood vessels, not otherwise provided for
A61B 17/00 - Surgical instruments, devices or methods
A guidewire formed from drawn filled tubing having an inner core member encased in an outer layer. The inner core member is formed from a linear elastic or superelastic material and the outer layer is formed from a metal alloy such as 35N LT. A portion of the outer layer is ground down to form a feather edged joint between the outer layer and the inner core member.
A closure system for closing an opening in tissue, the closure system including a closure device and a knot replacement device configured to position a suture lock on a suture. The closure device includes a housing, a needle actuation handle cooperating with the housing, a first hollow needle selectively movable by the needle actuation handle and operatively cooperating with a suture anchor frictionally engaged with a slot and a lumen of the first hollow needle and coupled to a suture. A portion of the suture anchor rests along an outer surface of the first hollow needle as the first hollow needle is advanced through tissue adjacent the opening.
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 17/06 - NeedlesHolders or packages for needles or suture materials
The present disclosure describes tissue gripping devices, systems, and methods for gripping mitral valve tissue during treatment of a mitral valve and while a tissue fixation device is implanted in the mitral valve. The tissue gripping device includes a flexible member and one or more tissue gripping members coupled to one or more arms of the flexible member. The flexible member is formed from a shape-memory material, such as nitinol, and the tissue gripping member(s) are formed from a material that is more rigid than the shape-memory material. The tissue gripping member(s) are attached to the flexible member by threading or looping suture lines around and/or through the tissue gripping member(s) and the flexible member and/or by applying a cover material to the tissue gripping device to hold the tissue gripping member(s) against the flexible member.
Embodiments are directed to radiopaque implantable structures (e.g., stents) formed of cobalt-based alloys that comprise cobalt, chromium, tungsten, and nickel, and methods for their manufacture. Tungsten is present above its solubility limit (about 15%) at ambient temperature, but is still only present as a super-saturated, primarily single-phase material exhibiting an FCC microcrystalline structure.
A61L 31/18 - Materials at least partially X-ray or laser opaque
B22F 3/16 - Both compacting and sintering in successive or repeated steps
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
A stent comprising a cobalt-based alloy comprising at least 18 weight % cobalt (Co), 10-25 weight % chromium (Cr), 10-15 weight % tungsten (W), optionally, up to 2 weight % of manganese (Mn), optionally, up to 3 weight % iron (Fe), and 10-65 weight % of a metal member selected from a platinum group metal.
The invention provides improved devices, systems, and methods for tissue approximation and repair at treatment sites. The invention provides devices, systems, and methods that may more successfully approximate and repair tissue by improving the capture of tissue into the devices. The invention may be a one-way mechanism that allows tissue to enter the mechanism but not easily exit, such as a leaf-spring, a protrusion, a pivoting arm and one or more frictional elements.
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/122 - Clamps or clips, e.g. for the umbilical cord
A61B 17/128 - Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord for applying or removing clamps or clips
36.
Catheter with tapered compliant balloon and tapered stent
A balloon comprising: a center portion having a proximal end, a distal end opposite the proximal end, and a length between the proximal end and the distal end. The center portion comprises: a first nominal diameter and a first radial modulus at the proximal end; a second nominal diameter and a second radial modulus at the distal end; further wherein, the first nominal diameter is equal to the second nominal diameter, such that, when the balloon is inflated to a nominal pressure, the center portion has a constant diameter over the length; and further wherein, the first radial modulus is smaller than the second radial modulus, such that, when the balloon is inflated above a nominal pressure, the center portion adopts a tapered shape in which the proximal end has a first stretched diameter and the distal end has a second stretched diameter, the first stretched diameter being larger than the second stretched diameter.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/89 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
A61F 2/958 - Inflatable balloons for placing stents or stent-grafts
A block copolymer comprises an A block and a B block. The A block provides mechanical strength while the B block provides elasticity to the polymeric material. The block copolymer may be an ABA tri-block copolymer. The A block may include one or more of polyglycolide (PGA), polylactic acid (PLA), or copolymer thereof. The B block may include a random copolymer of (i) glycolide (GA) and/or lactide (LA), (ii) trimethylene carbonate (TMC), and (iii) ε-caprolactone (CL). The block copolymer may cover an implantable device which may be used in delivering immediate hemostasis at a puncture site in a wall of a blood vessel.
A block copolymer comprises an A block and a B block. The A block provides mechanical strength while the B block provides elasticity to the polymeric material. The block copolymer may be an ABA tri-block copolymer. The A block may include one or more of polyglycolide (PGA), polylactic acid (PLA), or copolymer thereof. The B block may include a random copolymer of (i) glycolide (GA) and/or lactide (LA), (ii) trimethylene carbonate (TMC), and (iii) ε-caprolactone (CL). The block copolymer may cover an implantable device which may be used in delivering immediate hemostasis at a puncture site in a wall of a blood vessel.
An expandable stent for implantation in a body lumen, such as an artery, consists of a plurality of radially expandable cylindrical rings generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting links placed so that the stent is flexible in the longitudinal direction. The radial strength of the stent is enhanced by selectively increasing the width of the crests by offsetting the center points of inner arcs relative to outer arcs.
A61F 2/89 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
An expandable stent for implantation in a body lumen, such as an artery, consists of a plurality of radially expandable cylindrical rings generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting links placed so that the stent is flexible in the longitudinal direction. The radial strength of the stent is enhanced by selectively increasing the width of the crests by offsetting the center points of inner arcs relative to outer arcs.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A guidewire having improved torque characteristics in a proximal section of the guidewire. The proximal section has a square cross-section and a plurality of twists along the length of the proximal section. The plurality of twists have a pitch in a range from 1 to 3 twists per 1.0 inch so that the guidewire has less than a 15° torque delay when the proximal section is subjected to torsional forces
A guidewire having improved torque characteristics in a proximal section of the guidewire. The proximal section has a square cross-section and a plurality of twists along the length of the proximal section. The plurality of twists have a pitch in a range from 1 to 3 twists per 1.0 inch so that the guidewire has less than a 15° torque delay when the proximal section is subjected to torsional forces
A guidewire for use in the vasculature is formed inside a vessel into an extended U-shaped section at the distal end. The extended U-shaped distal section is able to more easily advance through tortuous vasculature or calcified lesions.
The invention provides devices, systems and methods for tissue approximation and repair at treatment sites. The devices, systems and methods of the invention will find use in a variety of therapeutic procedures, including endovascular, minimally-invasive, and open surgical procedures, and can be used in various anatomical regions, including the abdomen, thorax, cardiovascular system, heart, intestinal tract, stomach, urinary tract, bladder, lung, and other organs, vessels, and tissues. The invention is particularly useful in those procedures requiring minimally-invasive or endovascular access to remote tissue locations, where the instruments utilized must negotiate long, narrow, and tortuous pathways to the treatment site. In addition, many of the devices and systems of the invention are adapted to be reversible and removable from the patient at any point without interference with or trauma to internal tissues.
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/10 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for applying or removing wound clampsWound clamp magazines
A vessel closure device for delivering substantially immediate hemostasis at a puncture site in a wall of a blood vessel includes an intravascular anchor having one or more suture attachment points, an extravascular cap having a lumen, a sealant, and a suture connected to at least one of the one or more suture attachment points of the intravascular anchor and threaded through the lumen of the extravascular cap, wherein each of the intravascular anchor, extravascular cap, sealant, and suture are formed of bioabsorbable materials. Delivery systems for delivering such a vessel closure device are also disclosed.
A61B 17/06 - NeedlesHolders or packages for needles or suture materials
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 17/12 - Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
A61L 24/00 - Surgical adhesives or cementsAdhesives for colostomy devices
A61L 24/06 - Surgical adhesives or cementsAdhesives for colostomy devices containing macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
46.
VESSEL CLOSURE DEVICE WITH IMPROVED SAFETY AND TRACT HEMOSTASIS
A vessel closure device for delivering substantially immediate hemostasis at a puncture site in a wall of a blood vessel includes an intravascular anchor having one or more suture attachment points, an extravascular cap having a lumen, a sealant, and a suture connected to at least one of the one or more suture attachment points of the intravascular anchor and threaded through the lumen of the extravascular cap, wherein each of the intravascular anchor, extravascular cap, sealant, and suture are formed of bioabsorbable materials. Delivery systems for delivering such a vessel closure device are also disclosed.
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
The invention provides devices, systems and methods for tissue approximation and repair at treatment sites. The devices, systems and methods of the invention will find use in a variety of therapeutic procedures, including endovascular, minimally-invasive, and open surgical procedures, and can be used in various anatomical regions, including the abdomen, thorax, cardiovascular system, heart, intestinal tract, stomach, urinary tract, bladder, lung, and other organs, vessels, and tissues. The invention is particularly useful in those procedures requiring minimally-invasive or endovascular access to remote tissue locations, where the instruments utilized must negotiate long, narrow, and tortuous pathways to the treatment site. In addition, many of the devices and systems of the invention are adapted to be reversible and removable from the patient at any point without interference with or trauma to internal tissues.
A61B 17/10 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for applying or removing wound clampsWound clamp magazines
An interventional system is used to treat a lesion in a target anatomy. The interventional system includes a balloon catheter and a guidewire. The balloon catheter includes a balloon coupled to a catheter shaft. The catheter shaft includes a guidewire lumen having a lumen diameter. The guidewire includes a coil tip coupled to a guidewire shaft at a proximal joint. A coil diameter of the coil tip at the proximal joint is larger than the lumen diameter of the catheter shaft. The interventional system can be used to access and treat the lesion in the target anatomy. Other embodiments are also described and claimed.
A catheter includes a midshaft having a proximal midshaft end and a distal midshaft end. An inner shaft extends distally through the midshaft to a distal inner shaft end. A balloon has a proximal balloon shoulder coupled to the distal midshaft end and a distal balloon shoulder coupled to the inner shaft. A proximal shaft is coupled to the proximal midshaft end. The proximal shaft includes a support member that extends through the balloon at least to the distal balloon shoulder.
An interventional system (402) is used to treat a lesion in a target anatomy. The interventional system includes a balloon catheter (404) and a guidewire (100). The balloon catheter includes a balloon (406) coupled to a catheter shaft (408). The catheter shaft includes a guidewire lumen (412) having a lumen diameter (424). The guidewire includes a coil tip (110) coupled to a guidewire shaft (101) at a proximal joint (112). A coil diameter (114) of the coil tip at the proximal joint is larger than the lumen diameter of the catheter shaft. The interventional system can be used to access and treat the lesion in the target anatomy. Other embodiments are also described and claimed.
A catheter includes a midshaft having a proximal midshaft end and a distal midshaft end. An inner shaft extends distally through the midshaft to a distal inner shaft end. A balloon has a proximal balloon shoulder coupled to the distal midshaft end and a distal balloon shoulder coupled to the inner shaft. A proximal shaft is coupled to the proximal midshaft end. The proximal shaft includes a support member that extends through the balloon at least to the distal balloon shoulder.
24344, e.g., in a volumetric ratio (as prepared) of about 6:1:1, wherein the electrolyte further comprises ethylene glycol. The metallic body is electrochemically processed in the electrolyte solution in the electropolishing cell, wherein the mass removal and electropolishing includes application of an alternating current with a forward:reverse current ratio of at least 3:1 (e.g., from 3:1 to 5:1). Voltage may be allowed to float, e.g., within a range of 1 to 6 volts. Superficially similar processes using DC, other AC settings, or without ethylene glycol were ineffective.
This invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more links. A Y-shaped member is comprised of a U-shaped member and a link having a curved portion and a straight portion to improve the flexibility and thereby improve the fatigue performance of the Y-link junction.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/89 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
54.
METHOD OF MASS REMOVAL AND ELECTROPOLISHING OF STENT ALLOYS CONTAINING NOBLE ELEMENTS
A process for electrochemical mass removal and/or electropolishing a stent formed from a cobalt-chromium-tungsten-platinum alloy. The alloy may also comprise nickel (e.g., at about 10% by weight), where no other elements are present in an amount over 3% by weight. The process includes positioning the stent in an electrolyte solution in an electropolishing cell, wherein the electrolyte includes each of H2SO4, HCl, and H3PO4, e.g., in a volumetric ratio (as prepared) of about 6:1:1, wherein the electrolyte further comprises ethylene glycol. The metallic body is electrochemically processed in the electrolyte solution in the electropolishing cell, wherein the mass removal and electropolishing includes application of an alternating current with a forward:reverse current ratio of at least 3:1 (e.g., from 3:1 to 5:1). Voltage may be allowed to float, e.g., within a range of 1 to 6 volts. Superficially similar processes using DC, other AC settings, or without ethylene glycol were ineffective.
A medical device includes a catheter shaft extending along a longitudinal axis and having a shaft lumen. A balloon includes a proximal balloon end coupled to the catheter shaft, an interior in fluid communication with the shaft lumen, and a distal balloon end. A lead wire extends from a proximal wire end through the shaft lumen and the interior to a distal wire end. The lead wire includes a stepped portion between a proximal wire surface and a distal wire surface. The distal balloon end is axially fixed to the proximal wire surface. The proximal wire surface is narrower than the distal wire surface. Other embodiments are described and claimed.
A medical device includes a catheter shaft extending along a longitudinal axis and having a shaft lumen. A balloon includes a proximal balloon end coupled to the catheter shaft, an interior in fluid communication with the shaft lumen, and a distal balloon end. A lead wire extends from a proximal wire end through the shaft lumen and the interior to a distal wire end. The lead wire includes a stepped portion between a proximal wire surface and a distal wire surface. The distal balloon end is axially fixed to the proximal wire surface. The proximal wire surface is narrower than the distal wire surface. Other embodiments are described and claimed.
The present disclosure is directed to a multi-segment device comprising an elongate first portion comprising a first metallic material, an elongate second portion comprising a different metallic material, the first and second elongate portions being directly joined together end to end, a heat affected zone surrounding an interface of the elongate first portion and the elongate second portion, a shapeable distal end formed from at least a portion of the elongate second portion, a coil disposed about a portion of the elongate second portion.
A medical device including an elongate member extending from a proximal end toward a distal end, the elongate member having a lumen with a longitudinal axis, a hub portion towards the proximal end of the elongate member and configured for a user to hold and manipulate a position of the elongate member, a base portion including a first groove and a second groove separated by an opening, and two wings disposed towards a distal end of the medical device, the two wings being opposite each other across the longitudinal axis and on opposite sides of the base portion, wherein, the two wings are configured to move in relation to the longitudinal axis and wherein each wing has an elongate slot having a closed first end at a location between the base portion and a peripheral end of the wing.
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 17/06 - NeedlesHolders or packages for needles or suture materials
A guidewire for use in intravascular procedures has a solder or weld joint at a distal end thereof. A plurality of dimples are formed on the solder/weld joint to increase the engagement and penetration of fibrous material including chronic total occlusions (CTO).
A61B 17/22 - Implements for squeezing-off ulcers or the like on inner organs of the bodyImplements for scraping-out cavities of body organs, e.g. bonesSurgical instruments, devices or methods for invasive removal or destruction of calculus using mechanical vibrationsSurgical instruments, devices or methods for removing obstructions in blood vessels, not otherwise provided for
A method of removing needles operatively associated with suture through tissue surrounding an access tract, the method comprising advancing an elongate distal member along the access tract, locating an elongate proximal member in contact with tissue surrounding the puncture site, the elongate proximal member comprising a guide disposed within the elongate proximal member, a perimeter of the guide forming a plurality of needle receiving gaps that are circumferentially spaced about a needle deployment actuator with a portion of the guide disposed between adjacent needle receiving gaps extending outwardly towards a wall of the lumen of the elongate proximal member, the needle deployment actuator extending to the elongate distal member and being configured to initiate proximal movement of a needle toward an opening of the elongate proximal member, and actuating the needle deployment actuator to move the needle toward the opening of the elongate proximal member.
A61B 17/06 - NeedlesHolders or packages for needles or suture materials
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 50/30 - Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments
A61B 50/36 - Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments for collecting or disposing of used articles
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
61.
SYSTEMS, APPARATUSES, AND METHODS FOR APPLYING A COATING LAYER TO A MEDICAL IMPLANT
Systems, methods, and apparatuses for depositing polymer and/or other layers onto surfaces of, for example, implantable medical devices. In some embodiments, the polymer and/or other coating layers are deposited via plasma polymerization deposition. In some embodiments, primer layers are deposited via plasma polymerization deposition. A coating layer can be formed over a primer layer. The deposited layers can be bioresorbable and/or bioabsorbable.
Systems, methods, and apparatuses for depositing polymer and/or other layers onto surfaces of, for example, implantable medical devices. In some embodiments, the polymer and/or other coating layers are deposited via plasma polymerization deposition. In some embodiments, primer layers are deposited via plasma polymerization deposition. A coating layer can be formed over a primer layer. The deposited layers can be bioresorbable and/or bioabsorbable.
A device for closing an opening in a body lumen, the device having a first elongate member with a first lumen, a second elongate member distal the first elongate member, and a needle assembly slidably cooperating with the first elongate member to position a plurality of sutures within the lumen of the first elongate member. The needle assembly includes a needle base and a plurality of needle portions extending from the needle base. Slidable movement of the needle assembly in relation to the first elongate member locates the plurality of sutures selectively mounted to the needle assembly within the first lumen.
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 17/06 - NeedlesHolders or packages for needles or suture materials
A61B 17/00 - Surgical instruments, devices or methods
64.
METHODS FOR INCREASING A RETENTION FORCE BETWEEN A POLYMERIC SCAFFOLD AND A DELIVERY BALLOON
A medical device includes a scaffold crimped to a catheter having an expansion balloon. The scaffold is crimped to the balloon by a process that includes inflating the delivery balloon during a diameter reduction to improve scaffold retention and maintaining an inflated balloon during the diameter reduction and prior and subsequent dwell periods.
B29B 11/04 - Making preforms by assembling preformed material
A61F 2/958 - Inflatable balloons for placing stents or stent-grafts
B29C 65/66 - Joining of preformed partsApparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
B29C 65/00 - Joining of preformed partsApparatus therefor
B29C 67/00 - Shaping techniques not covered by groups , or
B29C 65/78 - Means for handling the parts to be joined, e.g. for making containers or hollow articles
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
An elongated guidewire for use in angioplasty and related procedures. The guidewire includes a proximal section and a distal section. The proximal section has a plurality of round cross-section segments alternating with a plurality of non-round cross-section segments. The non-round cross-section segments can include a square, rectangle, pentagon, triangle, octagon and polygon.
A guidewire for use in intravascular procedures has an inner coil that is radiopaque and an outer coil that is non-radiopaque at the distal end of the guidewire. The radiopaque inner coil is visible under fluoroscopy so that the physician can monitor the location of the distal end of the guidewire during a procedure. The inner coil and the outer coil can be formed from a single wire or a multi-filar wire. The inner coil and the outer coil can have any of the following cross-sections for enhanced torquability: I-beam; vertical rectangular; vertical ellipse; square; peanut shape; vertical hexagonal; horizontal hexagonal; and horizontal ellipse.
Radiopaque implantable structures (e.g., stents) formed of cobalt-based alloys that comprise cobalt, chromium, tungsten, nickel, and platinum or another another metal having an atomic number or density greater than that of cobalt for increased radiopacity. In particular, processes are described for removing precipitate inclusions (e.g., tungsten rich precipitates) that render the alloy otherwise unsuitable for use in formation of a stent or similar implantable structure. The alloy with such precipitate inclusions can be heat treated within a narrow temperature range of about 1250° C. (e.g., 1225° C. to 1275° C.) for a time period in a narrow range of about 30 minutes (e.g., 20 to 40 minutes), to remove such precipitate inclusions. Higher temperatures and/or longer treatment times surprisingly do not resolve the precipitate inclusions, but treatment at about 1250° C. for about 30 minutes substantially removes the precipitates, resulting in a substantially homogenous structure suitable for use as a stent.
e.g.e.g., stents) formed of cobalt-based alloys that comprise cobalt, chromium, tungsten, nickel, and platinum or another another metal having an atomic number or density greater than that of cobalt for increased radiopacity. In particular, processes are described for removing precipitate inclusions (e.g., tungsten rich precipitates) that render the alloy otherwise unsuitable for use in formation of a stent or similar implantable structure. The alloy with such precipitate inclusions can be heat treated within a narrow temperature range of about 1250°C (e.g., 1225°C to 1275°C) for a time period in a narrow range of about 30 minutes (e.g., 20 to 40 minutes), to remove such precipitate inclusions. Higher temperatures and/or longer treatment times surprisingly do not resolve the precipitate inclusions, but treatment at about 1250°C for about 30 minutes substantially removes the precipitates, resulting in a substantially homogenous structure suitable for use as a stent.
A device for positioning suture through tissue, the device including a proximal elongate member having a longitudinal axis, the proximal elongate member being configured to receive a needle, and a tissue locator disposed distal the proximal elongate member, the tissue locator being coupled to an elongate member extending through the proximal elongate member and including a leg with a needle receiving opening configured to accommodate the needle. Proximal movement of the elongate member compresses the tissue locator and folds the leg of the tissue locator, the leg transitioning from extending longitudinally to extending outwardly in relation to a position of the leg in a pre-compressed state.
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/06 - NeedlesHolders or packages for needles or suture materials
A stent comprising a cobalt-based alloy comprising 18-50 weight % cobalt (Co), 10-25 weight % chromium (Cr), 10-15 weight % tungsten (W), 0-2 weight % of manganese (Mn), 0-3 weight % iron (Fe), and 10-65 weight % metal member selected from a platinum group metal.
A method and apparatus for positioning a locator. The method includes inserting a tissue locator through an opening in a tissue wall, and advancing an engagement member to move a portion of the first arm from a first position to a second position that is separated from a longitudinal axis of the tissue locator by a greater distance than the first position.
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 17/06 - NeedlesHolders or packages for needles or suture materials
72.
MEDICAL DEVICE INCLUDING A SOLDERABLE LINEAR ELASTIC NICKEL-TITANIUM DISTAL END SECTION AND METHODS OF PREPARATION THEREFOR
Shapeable guide wire devices and methods for their manufacture. Guide wire devices include an elongate shaft member having a shapeable distal end section that is formed from a linear pseudoelastic nickel-titanium (Ni—Ti) alloy that has linear pseudoelastic behavior without a phase transformation or onset of stress-induced martensite. Linear pseudoelastic Ni—Ti alloy, which is distinct from non-linear pseudoelastic (i.e., superelastic) Ni—Ti alloy, is highly durable, corrosion resistant, and has high stiffness. The shapeable distal end section is shapeable by a user to facilitate guiding the guide wire through tortuous anatomy. In addition, linear pseudoelastic Ni—Ti alloy is more durable tip material than other shapeable tip materials such as stainless steel.
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
B23K 35/00 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
C22F 1/18 - High-melting or refractory metals or alloys based thereon
73.
GUIDEWIRE HAVING VARYING DIAMETERS AND METHOD OF MAKING
A method of making a medical guidewire including providing a wire having a length that includes a proximal length and a distal length. The method further includes applying cold work to the distal length and not applying cold work to the proximal length, thereby imparting to the distal length a diameter that is smaller than the proximal length diameter; and applying a reducing process to the wire whereby the proximal length is reduced to have an outer diameter that is the same as the outer diameter of the distal length. The proximal length has an inner diameter and the distal length has an inner diameter that is less than the inner diameter of the proximal length.
B21F 15/04 - Connecting wire to wire or other metallic material or objectsConnecting parts by means of wire wire with wire without additional connecting elements or material, e.g. by twisting
B21F 45/00 - Wire-working in the manufacture of other particular articles
A stent delivery catheter assembly for delivering and implanting a self-expanding stent in a body lumen includes a handle assembly for one handed use. The handle assembly has a mode selection for advancing, reversing and locking the stent delivery components. Rotation of a thumbwheel allows the physician to deploy and implant the self-expanding stent in the body lumen with control and precision by simultaneously pulling a sheath proximally and pushing a pusher member distally.
A stent delivery catheter assembly for delivering and implanting a self-expanding stent in a body lumen includes a handle assembly for one handed use. The handle assembly has a mode selection for advancing, reversing and locking the stent delivery components. Rotation of a thumbwheel allows the physician to deploy and implant the self-expanding stent in the body lumen with control and precision by simultaneously pulling a sheath proximally and pushing a pusher member distally.
A61F 2/95 - Instruments specially adapted for placement or removal of stents or stent-grafts
A61F 2/844 - Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents folded prior to deployment
A61F 2/966 - Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
76.
METHOD FOR SELECTIVELY PRETINNING A GUIDEWIRE CORE
A method of pretinning a core wire for a guidewire having an elongate axis, comprising placing a ball of solder within a pocket in a soldering block; melting the ball of solder; holding a core wire over the ball of solder, with the elongate axis in a horizontal orientation; lowering a portion of the core wire into the ball of solder while maintaining the elongate axis in a horizontal orientation; removing the core wire from the ball of solder.
B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
C23C 2/00 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor
C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas
C23C 2/04 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor characterised by the coating material
B23K 1/00 - Soldering, e.g. brazing, or unsoldering
B05C 3/172 - Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating work of indefinite length not supported on conveying means in endless form
B05C 3/00 - Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
B05D 7/20 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wires
A guidewire for use in penetrating through complex and stenosed lesions. The distal tip of the guidewire has a roughened surface to increase frictional engagement with calcified and fibrous tissue to increase the penetration of the distal tip and the guidewire into and through the lesion and reduce the likelihood of deflection of the guidewire tip. The average surface roughness of the distal tip is in the range from 1 micron to 200 microns.
A61B 17/22 - Implements for squeezing-off ulcers or the like on inner organs of the bodyImplements for scraping-out cavities of body organs, e.g. bonesSurgical instruments, devices or methods for invasive removal or destruction of calculus using mechanical vibrationsSurgical instruments, devices or methods for removing obstructions in blood vessels, not otherwise provided for
An expandable stent for implantation in a body lumen, such as an artery, is disclosed. The stent consists of a plurality of radially expandable cylindrical rings generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting links placed so that the stent is flexible in the longitudinal direction. The link pattern is optimized to enhance longitudinal flexibility and high longitudinal strength compression of the stent.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A scaffold includes a radiopaque marker connected to a strut. The marker is retained within the strut by a head at one or both ends. The marker is attached to the strut by a process that includes forming a rivet from a radiopaque bead and attaching the rivet to the marker including deforming the rivet to enhance resistance to dislodgement during crimping or balloon expansion. The strut has a thickness of about 100 microns.
A61F 2/844 - Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents folded prior to deployment
A61F 2/86 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure
A61F 2/89 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
B21J 15/14 - Riveting machines specially adapted for riveting specific articles, e.g. brake lining machines
A torque device for gripping and manipulating a guidewire for advancing the guidewire into a patient's vascular system. The torque device is configured for single-handed use and can be opened for repositioning the torque device relative to the guidewire and closed for gripping the guidewire to prevent axial and rotational movement relative to the guidewire. The torque device grips the guidewire at multiple spaced apart locations on the guidewire.
This invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more links. A Y-shaped member is comprised of a U-shaped member and a link having a curved portion and a straight portion to improve the flexibility and thereby improve the fatigue performance of the Y-link junction.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/89 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
Catheter having an elongate tubular shaft including an inflation lumen and a guidewire lumen defined therein, the guidewire lumen extending along at least a distal length of an inner tubular member of the elongate tubular shaft. The catheter includes a distal tip member having a proximal end and a distal end, wherein the distal tip member is monolithic and the proximal end of the distal tip member is secured to a distal end of the inner tubular member. The catheter includes a balloon having a proximal portion and a distal portion, the proximal portion of the balloon sealingly coupled to the distal portion of the elongate tubular shaft. The distal portion of the balloon is sealingly coupled to the distal tip member and the balloon defines an inner chamber in communication with the inflation lumen, wherein the proximal end of the distal tip member is disposed within the inner chamber.
An improvement to devices and methods for suturing tissue in various applications, such as percutaneous closure of arterial and venous puncture sites and the like, providing a self-locking or self-securing suture that does not require manual knot-tying to hold in apposition the tissue of the vessel wall on opposite sides of the puncture.
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
84.
Methods for counteracting rebounding effects during solid state resistance welding of dissimilar materials
The present disclosure is directed to a multi-segment device, such as an intravascular guide wire. The multi-segment device includes an elongate first portion comprising a first metallic material, an elongate second portion comprising a different metallic material, the first and second elongate portions being directly joined together end to end by a solid-state weld, and a heat affected zone surrounding an interface of the weld where the first and second portions are joined together, wherein the heat affected zone has an average thickness of less than about 0.20 mm.
A medical device includes a scaffold crimped to a catheter having an expansion balloon. The scaffold is crimped to the balloon by a process that includes inflating the delivery balloon during a diameter reduction to improve scaffold retention and maintaining an inflated balloon during the diameter reduction and prior and subsequent dwell periods.
A61F 2/958 - Inflatable balloons for placing stents or stent-grafts
B29B 11/04 - Making preforms by assembling preformed material
B29C 65/66 - Joining of preformed partsApparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
B29C 65/00 - Joining of preformed partsApparatus therefor
B29C 67/00 - Shaping techniques not covered by groups , or
B29C 65/78 - Means for handling the parts to be joined, e.g. for making containers or hollow articles
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/95 - Instruments specially adapted for placement or removal of stents or stent-grafts
A61L 31/00 - Materials for other surgical articles
A closure system for closing an opening in tissue, the closure system including a closure device and a knot replacement device configured to position a suture lock on a suture. The closure device includes a housing, a needle actuation handle cooperating with the housing, a first hollow needle selectively movable by the needle actuation handle and operatively cooperating with a suture anchor frictionally engaged with a slot and a lumen of the first hollow needle and coupled to a suture. A portion of the suture anchor rests along an outer surface of the first hollow needle as the first hollow needle is advanced through tissue adjacent the opening.
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 17/06 - NeedlesHolders or packages for needles or suture materials
Balloon catheter includes an outer shaft having a hypotube and a monolithic single-layer distal outer member, a balloon in fluid communication with an inflation lumen, and a monolithic inner tubular member having a guidewire lumen defined therethrough. The outer shaft has the inflation lumen defined therethrough. The monolithic single-layer distal outer member is necked to a reduced diameter along an entire length thereof. A proximal end of the monolithic single-layer distal outer member is coupled to the hypotube. A distal section of the hypotube comprises a skive defined by a first angled cut, an axial cut, and a second angled cut. The balloon has a proximal balloon shaft coupled to a distal end of the monolithic single-layer distal outer member. The monolithic inner tubular member extends distally from a proximal port in the monolithic single-layer distal outer member through the balloon to form a tip.
Expandable electrophysiology catheters having electrodes mounted on splines of an expandable member are described. The splines of the expandable member include subsegments between a proximal location and a distal intersection at a central axis. The subsegments can include respective top-down profiles, and at least one of the top-down subsegment profiles is straight between the central axis and an adjacent top-down subsegment profile. The subsegments can be interconnected to extend continuously about the central axis from the proximal location to the distal intersection. Other embodiments are also described.
Bioabsorbable scaffolds having high crush recoverability, high fracture resistance, and reduced or no recoil due to self expanding properties at physiological conditions are disclosed. The scaffolds are made from a random copolymer PLLA and a rubbery polymer such as polycaprolactone.
A61L 31/14 - Materials characterised by their function or physical properties
A61L 31/16 - Biologically active materials, e.g. therapeutic substances
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61L 31/06 - Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
A guidewire formed from drawn filled tubing having an inner core member encased in an outer layer. The inner core member is formed from a linear elastic or superelastic material and the outer layer is formed from a metal alloy such as 35N LT. A portion of the outer layer is ground down to form a feather edged joint between the outer layer and the inner core member.
A mold is used to form a solder joint to join the distal end of the guidewire to a wire coil. The mold has a cavity that can have different configurations so that the solder joint can be any of bullet shaped, micro-J shaped, cone shaped, truncated cone shaped, or have a textured surface.
B23K 1/08 - Soldering by means of dipping in molten solder
B21F 15/08 - Connecting wire to wire or other metallic material or objectsConnecting parts by means of wire wire with wire with additional connecting elements or material making use of soldering or welding
B22D 18/02 - Pressure casting making use of mechanical pressing devices, e.g. cast-forging
B22D 19/04 - Casting in, on, or around, objects which form part of the product for joining parts
A stent made from a material comprising a polymer is disclosed. The stent has a pre-crimp diameter and a wall thickness such that a ratio of the pre-crimp diameter to the wall thickness is between 30 and 60. The stent has a pattern of interconnected elements. The interconnected elements including a plurality of rings connected by links, wherein each ring includes struts and crowns, and the struts are configured to fold at the crowns when the stent is crimped to the balloon.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/82 - Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
A61F 2/958 - Inflatable balloons for placing stents or stent-grafts
A61F 2/844 - Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents folded prior to deployment
A61F 2/86 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure
A61F 2/89 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
A61F 2/91 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
A61F 2/95 - Instruments specially adapted for placement or removal of stents or stent-grafts
A61L 27/00 - Materials for prostheses or for coating prostheses
A61L 31/06 - Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
A61L 31/14 - Materials characterised by their function or physical properties
B21D 39/04 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with tubesApplication of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with rods
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
B29K 67/00 - Use of polyesters as moulding material
A guidewire formed from drawn filled tubing having an inner core member encased in an outer layer. The inner core member is formed from a linear elastic or superelastic material and the outer layer is formed from a metal alloy such as 35N LT. A portion of the outer layer is ground down to form a feather edged joint between the outer layer and the inner core member.
A system and method of unloading a heart chamber is described. The chamber can be a ventricle and the system can unload the ventricle during or after a heart attack. The ventricular unloading system includes a transthoracic needle insertable into the ventricle, a vascular access cannula insertable into a blood vessel, and a pump to move blood from the ventricle to the blood vessel through the transthoracic needle and the vascular access cannula. The ventricular unloading system can be used by an emergency medical technician in a non-hospital setting. Accordingly, the ventricular unloading system can provide early protection against infarct to improve clinical outcomes for a patient. Other embodiments are also described and claimed.
A61M 25/06 - Body-piercing guide needles or the like
A61M 60/174 - Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient’s body implantable in, on, or around the heart inside a ventricle, e.g. intraventricular balloon pumps discharging the blood to the ventricle or arterial system via a cannula internal to the ventricle or arterial system
A61M 60/279 - Peristaltic pumps, e.g. roller pumps
An access closure device for closing an opening in tissue is provided. The access closure device may comprise a balloon delivery system and a sealant delivery system. The balloon delivery system may comprise a suture, a delivery shaft, an inflatable balloon, and a balloon segment releasably attached to the delivery shaft. The sealant delivery system may comprise a sealant delivery shaft, an ejection tube, and a snare wire configured to snare a suture of the delivery system.
A compression device for compressing an area of tissue surrounding a tissue opening to close the tissue opening. The device includes a compression support frame having an outer peripheral edge forming an arc whose central angle is less than 180° and greater than 45°. The device also includes a compression support and a tension member. The compression support is mounted on the compression support frame, and the tension member is selectively slidable in relation to the compression support.
A61B 17/12 - Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
A vessel closure device for delivering immediate hemostasis at a puncture site in a wall of a blood vessel includes an intravascular anchor having one or more suture attachment points, an extravascular cap having a lumen, a sealant, and a suture connected to at least one of the one or more suture attachment points of the intravascular anchor and threaded through the lumen of the extravascular cap, wherein each of the intravascular anchor, extravascular cap, sealant, and suture are formed of bioabsorbable materials.
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A stent having a cobalt-based alloy, wherein the cobalt-based alloy is free of nickel (Ni), the cobalt-based alloy including 10-65 weight % metal member selected from a platinum group metal, a refractory metal, or combinations thereof, 15-25 weight % chromium (Cr), 4-7 weight % molybdenum (Mo), 0-18 weight % iron (Fe), and 22-40 weight % cobalt (Co).
A vessel closure device for delivering immediate hemostasis at a puncture site in a wall of a blood vessel includes an intravascular anchor having one or more suture attachment points, an extravascular cap having a lumen, a sealant, and a suture connected to at least one of the one or more suture attachment points of the intravascular anchor and threaded through the lumen of the extravascular cap, wherein each of the intravascular anchor, extravascular cap, sealant, and suture are formed of bioabsorbable materials.
The invention provides improved devices, systems, and methods for tissue approximation and repair at treatment sites. The invention provides devices, systems, and methods that may more successfully approximate and repair tissue by improving the capture of tissue into the devices. The invention may be a one-way mechanism that allows tissue to enter the mechanism but not easily exit, such as a leaf-spring, a protrusion, a pivoting arm and one or more frictional elements.
A61B 17/122 - Clamps or clips, e.g. for the umbilical cord
A61B 17/128 - Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord for applying or removing clamps or clips
A61B 17/00 - Surgical instruments, devices or methods
