Zip clip

A tissue closure device includes a first clip including a first longitudinal element extending along a longitudinal axis from a proximal end to a distal end and a first pair of arms extending laterally from the first longitudinal element, the first pair of arms movable between an open configuration in which free ends of the first pair of arms are separated from one another and a closed configuration in which the free ends of the first pair of arms extend toward one another, the first pair of arms being biased toward the closed configuration, and a sliding element extending from a proximal end to a distal end and longitudinally movable relative to the first clip so that when a portion of the sliding element is received between the first pair of arms, the first pair of arms is moved from the biased closed configuration to the open configuration.

Atraumatic stent with reduced deployment force

Medical devices with multiple degrees of freedom and related methods of use

Embodiments of the disclosure are directed to a medical device. The medical device may include a shaft having a proximal end and a distal end. A positioning mechanism may be disposed adjacent the distal end of the shaft. The positioning mechanism may include an outer member and an inner member coupled to an end-effector. The outer member may be pivotably attached to the distal end of the shaft and the inner member may be pivotably attached to the outer member.

Stents with attached looped ends

An open frame prosthesis is formed with looped end terminations at its proximal and distal ends. At one end of the prosthesis, the filaments or strands are welded together in pairs to form strand couplings. A plurality of loop segments are connected to the strand couplings, one loop segment for each pair of adjacent strand couplings. In one version of the prosthesis, strands at the opposite end are bent to form looped ends. In another version, loop segments are connected to pairs of strand couplings at both ends of the prosthesis. The loop segments can be connected to the couplings by welding, fusion bonds, or tubes, which are either crimped or heat shrunk.

STENTS WITH ATTACHED LOOPED ENDS

An open frame prosthesis is formed with looped end terminations at its proximal and distal ends. At one end of the prosthesis, the filaments or strands are welded together in pairs to form strand couplings. A plurality of loop segments are connected to the strand couplings, one loop segment for each pair of adjacent strand couplings. In one version of the prosthesis, strands at the opposite end are bent to form looped ends. In another version, loop segments are connected to pairs of strand couplings at both ends of the prosthesis. The loop segments can be connected to the couplings by welding, fusion bonds, or tubes, which are either crimped or heat shrunk. 1. A method for forming an atraumatic end in a body implantable device , comprising:(a) providing a plurality of elongate structural strands;(b) providing a mandrel having first and second opposed mandrel ends and having pins disposed only at said first and second opposed mandrel ends;(c) interbraiding the plurality of elongate structural strands between said first and second opposed mandrel ends and between said pins to form an open-frame tubular interbraided structure having first and second opposed ends; extending one of the elongate structural strands beyond the pins, and', 'bending the one of the elongate structural strands over the pins to form a loop segment having an arcuate region and opposed axially extending legs;, '(d) along said second opposed end of said mandrel,'}(e) integrally coupling different ones of the elongate structural strands which have not been bent around the pins at said second opposed end of said mandrel together with the opposed axially extending legs of the one of the elongate structural strand which has been bent around the pins; and(f) repeating steps (d) and (e) until all ends of said plurality of elongate structural strands are coupled to provide an atraumatic end at said second opposed end of said interbraided structure.2. The method of claim 1 , further comprising:bending a ...

MEDICAL DEVICES WITH MULTIPLE DEGREES OF FREEDOM AND RELATED METHODS OF USE

Embodiments of the disclosure are directed to a medical device. The medical device may include a shaft having a proximal end and a distal end. A positioning mechanism may be disposed adjacent the distal end of the shaft. The positioning mechanism may include an outer member and an inner member coupled to an end-effector. The outer member may be pivotably attached to the distal end of the shaft and the inner member may be pivotably attached to the outer member. 1. A medical device , comprising:a shaft having a proximal end and a distal end;a positioning mechanism disposed adjacent the distal end of the shaft, the positioning mechanism including an outer member and an inner member coupled to an end-effector, wherein the outer member is pivotably attached to the distal end of the shaft and the inner member is pivotably attached to the outer member.2. The medical device of claim 1 , wherein the inner member pivots in a first plane relative to the shaft and the outer member pivots in a second plane different than the first plane.3. The medical device of claim 1 , wherein the inner member is disposed in an interior of the outer member claim 1 , and wherein the end-effector extends distally from the inner member through a port in a distal face of the outer member.4. The medical device of claim 3 , wherein the inner member pivots relative to the outer member to rotate the end-effector about a primary axis claim 3 , and wherein the outer member pivots relative to the distal end of the shaft to rotate the end-effector about a secondary axis that is different than the primary axis.5. The medical device of claim 4 , further including a biasing member associated with the outer member claim 4 , the biasing member being configured to control rotation of the outer member about the secondary axis.6. The medical device of claim 5 , wherein the biasing member is disposed in a plane that is not perpendicular to a longitudinal axis of the shaft claim 5 , and wherein the biasing member ...

Atraumatic Stent and Method and Apparatus for making the same

A method of braiding a stent includes braiding a number of elongate filaments around a mandrel using tensioned braiding carriers without spooling the filaments to the tensioned braiding carriers to form a braided stent having atraumatic ends. 1. A method of making a stent comprising:looping filaments around a plurality of securement projections of a mandrel, the plurality of securement projections being longitudinally staggered and circumferentially spaced; andbraiding the filaments to form a stent with longitudinally staggered loops at a first end.2. The method of claim 1 , wherein each securement projection has a single filament looped therearound.3. The method of claim 1 , each filament having an intermediate portion and opposed ends claim 1 , wherein the intermediate portion is looped around the securement projection and the opposed ends are secured to a braiding machine.4. The method of claim 1 , the mandrel further defines first parallel helical pathways and second parallel helical pathways that intersect the first parallel helical pathways claim 1 ,wherein during the step of braiding the filaments, a filament is laid in each helical pathway.5. The method of claim 4 , the mandrel having raised projections that define the first parallel helical pathways and the second parallel helical pathways claim 4 ,wherein during the step of braiding the filaments, the raised projections provide for a substantially constant braiding angle for the filaments.6. The method of claim 5 , the raised projections having a different shape than a shape of the securement projections.7. The method of claim 1 , the mandrel further comprising raised projections aligned in a plurality bands claim 1 , the plurality of bands including circumferential bands and longitudinal bands claim 1 , wherein the raised projections in each circumferential band are circumferentially offset from the raised projections of at least one other circumferential band claim 1 , and the raised projections in each ...

Stent With Reduced Weld Profiles and a Closed-End Wire Configuration

A prosthesis including a composite wire forming a mesh, the mesh having a variable diameter wherein at least one end region has a larger diameter than a middle portion; the mesh having an exterior surface and an interior surface, wherein at least one of the surfaces is covered with silicone; and a retrieval loop positioned at at least one end of the mesh. 1. A prosthesis comprising: the mesh having a variable diameter wherein at least one end region has a larger diameter than a middle portion;', 'the mesh having an exterior surface and an interior surface, wherein at least one of the surfaces is covered with silicone; and, 'a composite wire forming a mesh,'}a retrieval loop positioned at at least one end of the mesh.2. The prosthesis of claim 1 , wherein an entirety of the exterior surface of the mesh and an entirety of the interior surface of the mesh is covered with silicone.3. The prosthesis of claim 1 , wherein the mesh is fully covered by silicone and polytetrafluroethylene.4. The prosthesis of claim 3 , wherein one of the exterior surface and the interior surface is covered with silicone and the other of the exterior surface and the interior surface is covered with polytetrafluroethylene.5. The prosthesis of claim 1 , the composite wire comprising two different metals.6. The prosthesis of claim 5 , the two different metals being nitinol and platinum.7. The prosthesis of claim 1 , the mesh comprising ends with loops.8. The prosthesis of claim 7 , wherein the retrieval loop is threaded through loops at an end of the mesh stent.9. The prosthesis of claim 1 , wherein the exterior surface of an end of the mesh has a polymeric band thereon.10. A prosthesis comprising: each composite wire comprising a first metal and a second metal wherein the first metal is nitinol and the second metal is platinum;', 'the mesh having a variable diameter wherein at least one end region has a larger diameter than a middle portion., 'a plurality of composite wires forming a mesh,'}11. ...

STENTS WITH ATTACHED LOOPED ENDS

An open frame prosthesis is formed with looped end terminations at its proximal and distal ends. At one end of the prosthesis, the filaments or strands are welded together in pairs to form strand couplings. A plurality of loop segments are connected to the strand couplings, one loop segment for each pair of adjacent strand couplings. In one version of the prosthesis, strands at the opposite end are bent to form looped ends. In another version, loop segments are connected to pairs of strand couplings at both ends of the prosthesis. The loop segments can be connected to the couplings by welding, fusion bonds, or tubes, which are either crimped or heat shrunk. 1. A prosthesis comprising:a wire forming a mesh, the mesh having a variable diameter wherein at least one end region has a larger diameter than a middle portion; anda retrieval loop positioned at an end of the mesh.2. The prosthesis of claim 1 , the mesh comprising ends with loops.3. The prosthesis of claim 2 , the loops providing smooth claim 2 , rounded claim 2 , blunt ends.4. The prosthesis of claim 2 , the loops being blunt and flexible end terminations.5. The prosthesis of claim 2 , the loops being equally angularly spaced apart from one another.6. The prosthesis of claim 7 , wherein the retrieval loop is threaded through loops at an end of the mesh stent.7. The prosthesis of claim 1 , the wire comprising first wires helically wound in a first direction over the longitudinal length of the mesh and second wires helically wound in a second direction over the longitudinal length of the mesh.8. The prosthesis of claim 1 , the wire comprising ends secured by welds.9. The prosthesis of claim 1 , the wire comprising ends secured by adhesives.10. The prosthesis of claim 1 , the mesh having at least one atraumatic end.11. A prosthesis comprising: each wire comprising nitinol;', 'the plurality of wires helically wound in a first direction over the longitudinal length of the mesh and in a second direction over the ...

Atraumatic Stent and Method and Apparatus for making the same

A method of braiding a stent includes braiding a number of elongate filaments around a mandrel using tensioned braiding carriers without spooling the filaments to the tensioned braiding carriers to form a braided stent having atraumatic ends. 1. A stent comprising:a mesh wall having a variable diameter and comprising filament crossings, each filament crossing having an angle, the angle being substantially constant for all the filament crossings.2. The stent of claim 1 , the mesh wall further comprising atraumatic ends.3. The stent of claim 1 , the mesh wall having end regions with a greater diameter than a middle region extending between the end regions.4. The stent of claim 1 , the filament crossings formed by filaments each comprising a first metal and a second metal claim 1 , wherein the first metal is nitinol and the second metal is platinum.5. The stent of claim 1 , the filament crossing being non-interlocking.6. The stent of claim 1 , further comprising a polymeric coating comprising silicone.7. A stent having a variable diameter and comprising composite filaments in a mesh pattern extending from a first stent end to a second stent end claim 1 , the mesh pattern comprising a plurality of intersections claim 1 , each intersection having an intersection angle claim 1 , the intersection angle being uniform throughout the mesh pattern.8. The stent of claim 7 , the mesh pattern being a one-under and one-over pattern.9. The stent of claim 7 , the mesh pattern being a two-under and two-over pattern.10. The stent of claim 7 , each intersection formed by only two filaments.11. The stent of claim 7 , the mesh pattern being non-interlocking.12. The stent of claim 7 , the composite filaments comprising a platinum core with an outer layer of nitinol.13. The stent of claim 7 , wherein the first and second stent ends are atraumatic ends.14. A braided stent comprising:a number of elongate filaments inter-braided to form a tubular wall, the filaments being inter-braided at a ...

STENTS WITH ATTACHED LOOPED ENDS

An open frame prosthesis is formed with looped end terminations at its proximal and distal ends. At one end of the prosthesis, the filaments or strands are welded together in pairs to form strand couplings. A plurality of loop segments are connected to the strand couplings, one loop segment for each pair of adjacent strand couplings. In one version of the prosthesis, strands at the opposite end are bent to form looped ends. In another version, loop segments are connected to pairs of strand couplings at both ends of the prosthesis. The loop segments can be connected to the couplings by welding, fusion bonds, or tubes, which are either crimped or heat shrunk. 1. A prosthesis comprising:a plurality of wires forming a mesh, wherein terminal ends of the plurality of wires are joined together at a first end of the mesh to form a plurality of strand junctions; anda plurality of spaced apart loops at the first end of the mesh, each loop defined by a pair of adjacent first and second strand junctions, wherein the mesh includes a single loop for each pair of adjacent first and second strand junctions, the first strand junction formed of a terminal end of a first wire of the plurality of wires forming the mesh and a terminal end of a second wire of the plurality of wires forming the mesh, the second strand junction formed of a terminal end of a third wire of the plurality of wires forming the mesh;wherein the terminal end of the first wire is longer than the terminal end of the second wire to provide a strand extension extending beyond the terminal end of the second wire and looping back to be attached to the second strand junction.2. The prosthesis of claim 1 , wherein the mesh comprises a second end having loops.3. The prosthesis of claim 2 , wherein each spaced apart loop provides a smooth claim 2 , rounded claim 2 , blunt end.4. The prosthesis of claim 2 , wherein each spaced apart loop is a blunt and flexible end termination.5. The prosthesis of claim 2 , wherein the ...

ATRAUMATIC STENT AND METHOD AND APPARATUS FOR MAKING THE SAME

A method of braiding a stent includes braiding a number of elongate filaments around a mandrel using tensioned braiding carriers without spooling the filaments to the tensioned braiding carriers to form a braided stent having atraumatic ends. 1. A method of making a stent comprising:securing an intermediate portion of each of a plurality of filaments to a first end of a mandrel;securing at least one end of each of the plurality of filaments to one of a plurality of constant force braiding carriers; andbraiding the plurality of filaments along the mandrel to form the stent while applying and maintaining constant tension from the constant force braiding carriers to the filaments directly within a braiding zone defined by a cone formed by the plurality of filaments extending between the plurality of constant force braiding carriers and the mandrel.2. The method of claim 1 , wherein braiding is achieved by moving the plurality of constant force braiding carriers in a circular and serpentine motion as the mandrel is longitudinally advanced.3. The method of claim 1 , wherein the plurality of filaments are metallic.4. The method of claim 3 , wherein maintaining constant tension includes maintaining a constant tension force of from about 0.125 pound-force (about 0.5 Newtons) to about 10 pound-force (45 Newtons).5. The method of claim 4 , wherein maintaining constant tension includes maintaining a constant tension force of from about 0.25 pound-force (1.1 Newton) to about 5 pound-force (22.2 Newtons).6. The method of claim 5 , wherein maintaining constant tension includes maintaining a constant tension force of from about 0.5 pound-force (about 2 Newtons) to about 3 pound-force (about 13 Newtons).7. The method of claim 1 , wherein the plurality of filaments are polymeric claim 1 , wherein maintaining constant tension includes maintaining a constant tension force of from about 0.5 pound-force (about 2 Newtons) to about 1 pound-force (about 4.4 Newtons).8. The method of claim ...

INFLATABLE BALLOON STENT

An illustrative stent may comprise an elongated tubular balloon having a first end and a second end and an intermediate region disposed therebetween. The elongated tubular balloon may have an inner wall and an outer wall, the inner wall and the outer wall connected at the first end and the second end to define an enclosed inflation chamber between the inner wall and the outer wall. The stent may further include an inflation valve. 1. A stent , the stent comprising:an elongated tubular balloon having a first end and a second end and an intermediate region disposed therebetween, the elongated tubular balloon having an inner wall and an outer wall, the inner wall and the outer wall connected at the first end and the second end to define an enclosed inflation chamber between the inner wall and the outer wall; andan inflation valve.2. The stent of claim 1 , wherein an inner surface of the inner wall of the elongated tubular balloon defines a lumen extending from the first end to the second end.3. The stent of claim 1 , wherein the inflation valve is disposed adjacent to one of the first or second ends of the elongated tubular balloon.4. The stent of claim 1 , wherein the inflation valve is disposed adjacent to the intermediate region of the elongated tubular balloon.5. The stent of claim 1 , wherein the first end has an outer diameter larger than an outer diameter of the intermediate region and the second end has an outer diameter larger than an outer diameter of the intermediate region.6. The stent of claim 1 , wherein the inflation valve comprises a one-way valve.7. The stent of claim 1 , wherein the inflation valve comprises a break away valve.8. The stent of wherein an outer surface of the outer wall comprises a textured surface.9. The stent of claim 8 , wherein the textured surface includes raised projections.10. The stent of claim 16 , wherein the elongated tubular balloon comprises polyethylene terephthalate.11. The stent of claim 16 , further comprising at least ...

Stent retrieval member and devices and methods for retrieving or repositioning a stent

An implantable stent includes a stent retrieval member for repositioning or retrieval of the stent after it has been implanted into a bodily lumen. The stent includes a distensible tubular stent having a tubular structure having a tubular wall defined by an interior surface and an exterior surface and having opposed open ends; and a stent retrieval member comprising an elongate member comprising a generally circular perimetric base and a shaped projection having first and second spaced apart members extending acutely or perpendicularly from the base and connected by an apical portion. Force exerted on the shaped projection causes contraction or expansion of the circular base. The circular base is securably attached to one of the open ends of the stent, and the shaped projection extends longitudinally beyond this open end of the stent.

Marker For Detection And Confirmation Of Peripheral Lung Nodules

An example method for obtaining a biopsy sample may include delivering a tumor marker to a patient, guiding a biopsy tool to a desired biopsy region within a patient's body, obtaining a biopsy sample from the desired biopsy region, removing the biopsy sample from the patient's body, and after removing the biopsy sample from the patient's body, scanning the biopsy sample to detect the presence of the tumor marker in the patient. 115-. (canceled)16. A method for performing a biopsy , the method comprising:guiding a biopsy tool to a desired biopsy region within a patient's body, the desired biopsy region including a tissue previously marked with a tumor marker;obtaining a biopsy sample from the desired biopsy region;removing the biopsy sample from the patient's body; andafter removing the biopsy sample from the patient's body, scanning the biopsy sample to detect the presence of the tumor marker in the patient;wherein if the biopsy sample is positive for the tumor marker the biopsy sample has been obtained from the desired biopsy region and if the biopsy sample is negative for the tumor marker the biopsy sample has not been obtained from the desired biopsy region.17. The method of claim 16 , wherein if the sample is negative for the tumor marker claim 16 , the method further comprising the steps of guiding a biopsy tool to the desired biopsy region within a patient's body claim 16 , obtaining a biopsy sample from the desired biopsy region claim 16 , removing the biopsy sample from the patient's body claim 16 , and after removing the biopsy sample from the patient's body claim 16 , scanning the biopsy sample to detect the presence of the tumor marker in the patient are repeated during a same medical procedure until a biopsy sample is positive for the tumor marker.18. The method of claims 16 , wherein a waiting period allows the tumor marker to permeate a tumor tissue and/or allows non-absorbed marker to clear from adjacent tissues.19. The method of claim 16 , wherein ...

Atraumatic stent and method and apparatus for making the same

A method of braiding a stent includes braiding a number of elongate filaments around a mandrel using tensioned braiding carriers without spooling the filaments to the tensioned braiding carriers to form a braided stent having atraumatic ends.

HEMOSTASIS AND CLOSURE METHODS UTILIZING MESH

A device for causing hemostasis includes a sheet of mesh stretchable between an expanded and a retracted configuration, a size of the sheet in the retracted configuration being selected to cover a target tissue site; a spring mechanism coupled to the mesh, the spring mechanism moving between an expanded configuration and a retracted configuration when the mesh is moved between the expanded and retracted configurations; and a plurality of hooks coupled to the mesh and oriented to extend into tissue to lock the mesh in position when the mesh is placed in a desired position over the target tissue site in the expanded configuration. The hooks are lockingly engaging the target tissue so that, after the hooks have lockingly engaged the tissue, the spring mechanism reverts to the retracted configuration drawing the engaged portions of tissue radially inward. 1. A medical device , comprising;a sheet of mesh stretchable between an expanded and a retracted configuration, a size of the sheet in the retracted configuration being selected to cover a target tissue site;a spring mechanism coupled to the mesh, the spring mechanism moving between an expanded configuration and a retracted configuration when the mesh is moved between the expanded and retracted configurations; anda plurality of hooks coupled to the mesh and oriented to extend into a target tissue to lock the mesh in position when the mesh is placed in a desired position over the target tissue site in the expanded configuration, the hooks lockingly engaging the target tissue so that, after the hooks have lockingly engaged the tissue, the spring mechanism reverts to the retracted configuration drawing the engaged portions of tissue radially inward.2. The device of claim 1 , wherein the mesh is one of circular and oblong and is sized to cover a target portion of tissue.3. The device of claim 1 , wherein the spring mechanism includes a plurality of expandable elements claim 1 , each of the expandable elements extending ...

ENDOSCOPIC CLOSURE DEVICE

A tissue closure device includes a clip including arms extending from proximal ends connected to one another to distal ends. The clip is biased toward an open configuration in which the distal ends extend away from a longitudinal axis of the clip. The arms are held in a closed configuration in which the arms are moved toward the longitudinal axis via an interior surface of a working channel through which the clip is passed until the clip is moved distally past a distal end of the working channel and permitted to revert to the biased open configuration so that the distal ends are positioned about a portion of tissue surrounding a tissue opening to be closed. The device also includes a locking element movable over the arms to lock the clip in the closed configuration in which the arms are drawn toward one another to grip tissue therebetween. 1. A tissue closure device , comprising:a clip including a plurality of arms extending from proximal ends connected to one another to distal ends, the clip being biased toward an open configuration in which the distal ends extend away from a longitudinal axis of the clip, the arms being held in a closed configuration in which the arms are moved toward the longitudinal axis via an interior surface of a working channel through which the clip is passed until the clip is moved distally past a distal end of the working channel and permitted to revert to the biased open configuration so that the distal ends are positioned about a portion of tissue surrounding a tissue opening to be closed; anda locking element movable over the arms to lock the clip in the closed configuration in which distal ends of the arms are drawn toward one another to grip tissue therebetween.2. The device of claim 1 , wherein the distal ends of the arms include an engaging feature for engaging the portion of tissue surrounding the tissue opening.3. The device of claim 2 , wherein the engaging feature includes one of teeth claim 2 , tines and T-shaped elements.4. ...

PULMONARY BIOPSY DEVICES

Methods, devices, and systems for obtaining a navigating to a targeted biopsy region are disclosed. An example device for navigating to a targeted biopsy region may include an elongate shaft having a proximal end, a distal end, an inflation lumen, and a vacuum lumen. An inflatable balloon may be positioned proximal to the distal end of the elongate shaft. The device may further include an ultrasound transducer positioned adjacent to the distal end of the elongate shaft and a power and control unit in electrical communication with the ultrasound transducer. A vacuum source may be in fluid communication with the vacuum lumen. 115-. (canceled)17. The ultrasound device of claim 16 , wherein the ultrasound transducer is positioned to direct acoustic energy distal of the distal end of the elongate shaft.18. The ultrasound device claim 16 , wherein when in an inflated state claim 16 , the inflatable balloon is configured to fill a gap between an outer surface of the balloon and an inner surface a body lumen.19. The ultrasound device of claim 18 , wherein when the balloon is in an inflated state claim 18 , the vacuum source is activated to pull a vacuum on the body lumen.20. The ultrasound device of claim 19 , wherein when the vacuum is present in the body lumen claim 19 , the power and control unit is activated to supply electrical energy to the ultrasound transducer to generate and direct acoustic energy distal of the distal end of the elongate shaft.21. The ultrasound device of claim 19 , wherein when the vacuum is present in the body lumen claim 19 , an infusion fluid is pumped into the body lumen.22. The ultrasound device of claim 16 , further comprising one or more steering wires disposed within the elongate shaft.23. An ultrasound device claim 16 , the ultrasound device comprising:an elongate shaft having a proximal end, a distal end, and a lumen extending therethrough;a penetrating element positioned adjacent to the distal end of the elongate shaft, the penetrating ...

Atraumatic stent and method and apparatus for making the same

A method of braiding a stent includes braiding a number of elongate filaments around a mandrel using tensioned braiding carriers without spooling the filaments to the tensioned braiding carriers to form a braided stent having atraumatic ends.

METHOD FOR LOADING A STENT INTO A DELIVERY SYSTEM

Methods for assembling a stent delivery system are provided, as well as the stent delivery assemblies and devices formed by such methods. Also provided is a method for loading a stent into a delivery system. 1. A method for assembling a stent delivery system comprising:inserting a distal portion of a distensible stent into a proximal end of a first tubular member having a lumen extending therethrough, wherein the distal portion of the stent is in a constrained state and a proximal portion of the stent that is not inserted into the first tubular member is in an unconstrained state; andinserting a second elongate member into the proximal end of the first tubular member, the second elongate member having a stent-engaging portion, causing the stent-engaging portion to engage the stent such that relative movement of the second elongate member causes relative movement of the stent.2. The method of claim 1 , wherein movement of the second elongate member towards a distal end of the first tubular member causes concomitant movement of the stent towards the distal end of the first tubular member.3. The method of claim 2 , wherein the stent is fully constrained within the first tubular member when a distal end of the second elongate member is aligned with the distal end of the first tubular member.4. The method of claim 1 , wherein the proximal end of the first tubular member includes a funnel shaped member claim 1 , wherein the stent is compressed from the unconstrained state to the constrained state as the stent is inserted through the funnel shaped member into the lumen of the first tubular member.5. The method of claim 1 , wherein the first tubular member includes a visual marker for observing a position of the stent as the stent is inserted.6. The method of claim 5 , wherein the stent does not extend beyond the visual marker prior to engagement with the second elongate member.7. The method of claim 5 , wherein a distal end of the stent is aligned with the visual marker ...

ZIP CLIP

A tissue closure device includes a first clip including a first longitudinal element extending along a longitudinal axis from a proximal end to a distal end and a first pair of arms extending laterally from the first longitudinal element, the first pair of arms movable between an open configuration in which free ends of the first pair of arms are separated from one another and a closed configuration in which the free ends of the first pair of arms extend toward one another, the first pair of arms being biased toward the closed configuration, and a sliding element extending from a proximal end to a distal end and longitudinally movable relative to the first clip so that when a portion of the sliding element is received between the first pair of arms, the first pair of arms is moved from the biased closed configuration to the open configuration.

DEVICES, SYSTEMS, AND METHODS FOR TISSUE RESECTION

Exemplary embodiments of the present disclosure relate to devices, systems, and methods for tissue resection in a body lumen of a patient, and may include an endoscope and a backstop delivery device extendable through the endoscope. The backstop delivery device may deliver a backstop to a location of selected tissue for resection. A backstop may include a covering being deployable in a patient. The covering may have one or more anchoring mechanisms disposed on an edge of the covering. A tissue resecting device may be extendable through the endoscope for resecting the selected tissue for resection. The covering may be deployable to an outer surface of the body lumen, such that the anchoring mechanism may secure the covering to the outer surface of the body lumen and the covering may expand to cover the selected tissue for resection. 1. A system for tissue resection in a body lumen of a patient , comprising:an endoscope;a backstop delivery device extendable through the endoscope and positionable in the body lumen at a location of selected tissue for resection;a backstop including a covering deployable by the backstop delivery device; anda tissue resecting device extendable through the endoscope for resecting the selected tissue for resection;wherein the covering is deployable to an outer surface of the body lumen, such that one or more anchoring mechanisms disposed on an edge of the covering are securable to the outer surface of the body lumen and the covering is expandable to cover the selected tissue for resection.2. The system according to claim 1 , wherein the backstop delivery device includes a tissue penetrating device for insertion into the selected tissue for resection.3. The system according to claim 2 , wherein the tissue penetrating device is extendable partially in the selected tissue for resection so as to stabilize the backstop delivery device.4. The system according to claim 1 , wherein the covering is formed of a self-expanding material claim 1 , the ...

Atraumatic stent and method and apparatus for making the same

A method of braiding a stent and associated braided stent. The method includes braiding a number of elongate filaments around a mandrel using tensioned braiding carriers without spooling the filaments to the tensioned braiding carriers to form a braided stent having atraumatic ends. The braided stent includes a plurality of filaments being inter-braided at a braiding angle formed at crossing filament locations. The braiding angle may be substantially constant for all of the filament crossing locations.

Stents with attached looped ends

An open frame prosthesis (16) is formed with looped end terminations (34, 36, 38) at its proximal and distal ends. At one end of the prosthesis, the filaments or strands are welded together in pairs to form strand couplings (46). A plurality of loop segments are connected to the strand couplings, one loop segment for each pair of adjacent strand couplings. In one version of the prosthesis, strands at the opposite end are bent to form looped ends (33). In another version, loop segments are connected to pairs of strand couplings at both ends of the prosthesis. The loop segments can be connected to the couplings by welding, fusion bonds, or tubes, which are either crimped or heat shrunk.

Stents with attached looped ends

An open frame prosthesis (16) is formed with looped end terminations (34, 36, 38) at its proximal and distal ends. At one end of the prosthesis, the filaments or strands are welded together in pairs to form strand couplings (46). A plurality of loop segments are connected to the strand couplings, one loop segment for each pair of adjacent strand couplings. In one version of the prosthesis, strands at the opposite end are bent to form looped ends (33). In another version, loop segments are connected to pairs of strand couplings at both ends of the prosthesis. The loop segments can be connected to the couplings by welding, fusion bonds, or tubes, which are either crimped or heat shrunk.

Pulmonary biopsy devices

Methods, devices, and systems for obtaining a navigating to a targeted biopsy region are disclosed. An example device for navigating to a targeted biopsy region may include an elongate shaft having a proximal end, a distal end, an inflation lumen, and a vacuum lumen. An inflatable balloon may be positioned proximal to the distal end of the elongate shaft. The device may further include an ultrasound transducer positioned adjacent to the distal end of the elongate shaft and a power and control unit in electrical communication with the ultrasound transducer. A vacuum source may be in fluid communication with the vacuum lumen.

Devices, systems, and methods for tissue resection

Exemplary embodiments of the present disclosure relate to devices, systems, and methods for tissue resection in a body lumen of a patient, and may include an endoscope and a backstop delivery device extendable through the endoscope. The backstop delivery device may deliver a backstop to a location of selected tissue for resection. A backstop may include a covering being deployable in a patient. The covering may have one or more anchoring mechanisms disposed on an edge of the covering. A tissue resecting device may be extendable through the endoscope for resecting the selected tissue for resection. The covering may be deployable to an outer surface of the body lumen, such that the anchoring mechanism may secure the covering to the outer surface of the body lumen and the covering may expand to cover the selected tissue for resection.

Atraumatic stent and method and apparatus for making the same

A method of braiding a stent includes braiding a number of elongate filaments around a mandrel using tensioned braiding carriers without spooling the filaments to the tensioned braiding carriers to form a braided stent having atraumatic ends.

Medical device control mechanism and methods of use

A medical device (10) including a handle (20) including an actuation device, a sheath (30) extending from the handle and having a longitudinal axis, the sheath defining an imaging lumen (30b) extending from the handle to a distal end of the sheath, an imaging device (100) at a distal end of the sheath, and a piezoelectric member (120a, 120b) connected to the imaging device, where movement of the piezoelectric member moves the imaging device in a first direction relative to the longitudinal axis.

Atraumatic stent and method and apparatus for making the same

A method of braiding a stent includes braiding a number of elongate filaments around a mandrel using tensioned braiding carriers without spooling the filaments to the tensioned braiding carriers to form a braided stent having atraumatic ends.

Medical device control mechanism and methods of use

A medical device (10) including a handle (20) including an actuation device, a sheath (30) extending from the handle and having a longitudinal axis, the sheath defining an imaging lumen (30b) extending from the handle to a distal end of the sheath, an imaging device (100) at a distal end of the sheath, and a piezoelectric member (120a, 120b) connected to the imaging device, where movement of the piezoelectric member moves the imaging device in a first direction relative to the longitudinal axis.

Medical device control mechanism and methods of use

A medical device (10) including a handle (20) including an actuation device, a sheath (30) extending from the handle and having a longitudinal axis, the sheath defining an imaging lumen (30b) extending from the handle to a distal end of the sheath, an imaging device (100) at a distal end of the sheath, and a piezoelectric member (120a, 120b) connected to the imaging device, where movement of the piezoelectric member moves the imaging device in a first direction relative to the longitudinal axis.

Hemostasis and closure methods utilizing mesh

A device for causing hemostasis includes a sheet of mesh stretchable between an expanded and a retracted configuration, a size of the sheet in the retracted configuration being selected to cover a target tissue site; a spring mechanism coupled to the mesh, the spring mechanism moving between an expanded configuration and a retracted configuration when the mesh is moved between the expanded and retracted configurations; and a plurality of hooks coupled to the mesh and oriented to extend into tissue to lock the mesh in position when the mesh is placed in a desired position over the target tissue site in the expanded configuration. The hooks are lockingly engaging the target tissue so that, after the hooks have lockingly engaged the tissue, the spring mechanism reverts to the retracted configuration drawing the engaged portions of tissue radially inward.