Pull back stent delivery system with pistol grip retraction handle

PULL BACK STENT DELIVERY SYSTEM WITH PISTOL GRIP RETRACTION HANDLE

A stent delivery system for delivering a self-expanding stent to a predetermined location in a vessel includes a catheter body having an axial guidewire lumen and a pull-wire lumen. A medical device such as a self-expanding stem is held in a reduced delivery configuration for insertion and transport through a body lumen to a predetermined site for deployment. The stent is carried axially around the catheter body near its distal end and held in its reduced configuration by a retractable outer sheath. A proximal retraction handle is connected to the proximal end of the catheter body and includes a pistol grip trigger engaging a racket mechanism, which is connected to a pull-wire which extends through the pull-wire lumen and is connected to the retractabl e outer sheath.

DISPOSABLE SHEATH

A sheath for a medical instrument may include an elongate body extending from a proximal end to a distal face, and a first hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face. The sheath may also include a transparent window positioned at the second end of the first lumen to seal the first lumen at the second end. The transparent window may be configured to transmit light therethrough. 121-. (canceled)22. A medical device , comprising: an elongate body extending from a proximal end to a distal face;', 'a first lumen extending from the proximal end to the distal face; and', 'a second lumen extending from the proximal end to the distal face, wherein a proximal portion of the second lumen is separated from a distal portion of the second lumen by an interface, and the proximal portion of the second lumen is sealed from the distal portion of the second lumen; and, 'a sheath comprisinga proximal portion of a medical instrument positioned within the proximal portion of the second lumen and extending from the proximal end of the elongate body to the interface, wherein the proximal portion of the medical instrument is configured to operably couple with a distal portion of the medical instrument via the interface.23. The device of claim 22 , further comprising the distal portion of the medical instrument operably coupled with the proximal portion of the medical instrument and positioned within the distal portion of the second lumen.24. The device of claim 23 , wherein the distal portion of the medical instrument includes an end effector.25. The device of claim 24 , wherein the second lumen is open at the distal face claim 24 , and the end effector extends out of the second lumen and distal to the distal face.26. The device of claim 23 , wherein the proximal portion of the medical instrument and the distal portion of the medical instrument are both removeably coupled to the interface.27. The device of claim 22 , wherein ...

Medical Device Capable of Injection, Cutting and Coagulation

A device for treating tissue includes a catheter including an elongated body extending from a proximal end to a distal end and including a lumen extending therethrough, a distal tip connected to the distal end of the elongated body and including a first electrode and a second electrode extending thereabout, the first electrode extending to a distal opening of the lumen and a first needle extending longitudinally from a proximal end to a distal end, the first needle slidably received within the lumen of the catheter to be moved between a retracted bipolar configuration, in which the distal end of the needle is proximal the distal opening of the catheter, and an extended monopolar configuration, in which the distal end of the first needle extends distally past the distal opening of the catheter so that the first needle contacts the first electrode and is configured to cut tissue. 135-. (canceled)36. A device for treating tissue , comprising:a catheter including an elongated body and a distal tip, the elongated body extending from a proximal end to a distal end and including a lumen extending therethrough, the distal tip connected to the distal end of the elongated body and including a first electrode and a second electrode extending thereabout, the first electrode extending to a distal opening of the lumen; anda first needle extending longitudinally from a proximal end to a distal end, the first needle slidably received within the lumen of the catheter to be moved between a retracted bipolar configuration, in which the distal end of the needle is proximal of the distal opening of the catheter, and an extended monopolar configuration, in which the distal end of the first needle extends distally past the distal opening of the catheter so that the first needle contacts the first electrode and is configured to cut tissue.37. The device of claim 36 , wherein the first electrode is connected to a power source supplying a current thereto.38. The device of claim 36 , wherein ...

TISSUE FASTENING DEVICES AND PROCESSES THAT PROMOTE TISSUE ADHESION

Recoilable thrombosis filtering device and method

Device and method for selectively removing a thrombus filter

FIDUCIAL DEPLOYMENT MECHANISMS

A medical device that may include an elongate member having a proximal end and a distal end, and a lumen disposed through the elongate member is disclosed. The medical device may also include an opening disposed at the distal end of the elongate member in communication with the lumen, and a pushing element disposed with the lumen. The medical device may also include at least one fiducial disposed within the lumen and distal to the pushing element, and a separating mechanism disposed at the distal end of the elongate member. The separating mechanism may be configured to apply a separating force to deploy the at least one fiducial.

MEDICAL DEVICE CAPABLE OF INJECTION, CUTTING AND COAGULATION

A device for treating tissue includes a catheter including an elongated body extending from a proximal end to a distal end and including a lumen extending therethrough, a distal tip connected to the distal end of the elongated body and including a first electrode and a second electrode extending thereabout, the first electrode extending to a distal opening of the lumen and a first needle extending longitudinally from a proximal end to a distal end, the first needle slidably received within the lumen of the catheter to be moved between a retracted bipolar configuration, in which the distal end of the needle is proximal the distal opening of the catheter, and an extended monopolar configuration, in which the distal end of the first needle extends distally past the distal opening of the catheter so that the first needle contacts the first electrode and is configured to cut tissue. 115-. (canceled)16. A device for treating tissue , comprising:a catheter including an elongated body and a distal tip, the elongated body extending from a proximal end to a distal end and including a lumen extending therethrough, the distal tip connected to the distal end of the elongated body and including a first electrode and a second electrode extending thereabout, the first electrode extending to a distal opening of the lumen; anda first needle extending longitudinally from a proximal end to a distal end, the first needle slidably received within the lumen of the catheter to be moved between a retracted bipolar configuration, in which the distal end of the needle is proximal the distal opening of the catheter, and an extended monopolar configuration, in which the distal end of the first needle extends distally past the distal opening of the catheter so that the first needle contacts the first electrode and is configured to cut tissue.17. The device of claim 16 , wherein the first electrode is connected to a power source supplying a current thereto.18. The device of claim 17 , wherein the ...

FABRIC MOUNTING DEVICES FOR THE PROMOTION OF THE FABRIC ADHESION

DEVICES FOR THE GEWEBSINVAGINATION

RETRACTABLE TISSUE CUTTING DEVICE

A tissue cutting device includes a flexible elongate body including a channel extending therethrough, a distal member connected to a distal end of the elongate body. The distal member includes a lumen extending therethrough in communication with the channel and a recess extending through an exterior surface of the distal member along a portion of a length thereof. The recess extends includes a receiving structure at a distal end thereof. A cutting element is slidably received within the channel and the lumen so that the cutting element is movable between an open tissue-receiving configuration and a closed tissue-gripping configuration, in which a distal portion of the cutting element extends across the recess such that the distal end of the cutting element is received within the receiving structure, a portion of a length of the distal portion extending radially beyond an exterior surface of the distal member.

Method for manufacturing steerable catheter with rapid exchange lumen

A medical device for advancement over a guidewire includes a number of lumens therein including a working channel lumen, one or more control wire lumens, and a guidewire lumen. A flexible support within the device includes number of interlocking elements that resist longitudinal compression, transfer rotational torque, and can bend side to side. The flexible support also includes a slot that is aligned with the guidewire lumen. An outer jacket includes a perforation, slot, slit, or thinned area that is aligned with the slot in the support member and the guidewire lumen in order to allow a device such as a guidewire to be removed from the guidewire lumen and through the support member.

DEVICES, SYSTEMS AND METHODS FOR ACCESSING A BODY LUMEN

The present disclosure relates generally to the field of medical devices and establishing access to body lumens. In particular, the present disclosure relates to medical devices, systems and methods for facilitating access to an opening of a body lumen through an endoscope by at least partially dilating the opening with fluid from a fluid source prior to contacting the body lumen. 1. A medical device , comprising:a flexible elongate tube having a proximal end and a distal end configured to be directed toward an opening of a body lumen;a first lumen extending from the distal end of the tube at least partially along the tube toward the proximal end of the tube, the first lumen having a fluid connection at a proximal end for a fluid source;a second lumen extending from the distal end of the tube at least partially along the tube toward the proximal end of the tube, the second lumen configured to accept a guidewire extending along the second lumen; anda wire filament extending along the elongate tube, a distal end of the filament connected to the distal end of the elongate tube, a proximal portion of the wire extending at least partially along the elongate tube, and a distal portion of the wire extending external to the elongate tube.2. The medical device of claim 1 , further comprising a third lumen extending along the tube and configured to deliver a contrast agent.3. The medical device of claim 2 , further comprising a bifurcated lumen at the distal end of the tube that includes a partition wall separating the bifurcated lumen into two half-lumens.4. The medical device of claim 2 , wherein the second lumen transitions to one of the two half-lumens and the third lumen transitions to the other of the two half-lumens.5. The medical device of claim 1 , wherein the first lumen is configured to deliver a gas as the fluid source from the first lumen at the distal end of the tube to at least partially open the body lumen for access substantially without the medical device ...

DEVICES AND METHODS FOR TISSUE INVAGINATION

Surgical devices and methods used for invaginating tissue during, for example, an endoscopic fundoplication procedure, are disclosed. The device includes an elongated tube having a proximal end configured to extend outside of the body and a distal end configured to extend proximate the tissue to be invaginated, and a distal member coupled to the distal end of the tube. The distal member is configured to hold or grasp the tissue to be invaginated. The devices may include a protective distal sleeve. 191-. (canceled)92. A sheath for protecting tissue from an endoscopic instrument , the sheath comprising:a sleeve having a proximal end and a distal end;a tube extending from the distal end of the sleeve; andan expandable member at least partially surrounding the tube and the sleeve.93. The sheath of claim 92 , further including a flexible elongate member configured to form a loop around the sleeve.94. The sheath of claim 93 , wherein the tube is a first tube claim 93 , wherein the sheath further comprises a second tube extending from the proximal end of the sleeve claim 93 , and wherein the flexible elongate member includes a first portion and a second portion claim 93 , and wherein the first and second portions extend through a lumen in the second tube.95. The sheath of claim 93 , wherein the flexible elongate member is configured to have a loose configuration such that an endoscopic instrument may move within the sheath claim 93 , and a tight configuration such that an endoscopic instrument may be substantially secured within the sheath.96. The sheath of claim 92 , wherein the expandable member includes an extension movable distally relative to the sleeve.97. The sheath of claim 92 , wherein the expandable member is an inflatable member connected to an inflation tube.98. The sheath of claim 97 , wherein the inflation tube extends through the proximal end of the sleeve and connects to the inflatable member at a proximal end of the tube.99. The sheath of claim 92 , ...

Polypectomy snare devices

Polypectomy devices and methods for making and using polypectomy devices are disclosed. An example polypectomy device may include an elongate sheath having a proximal end region and a distal end region. A shaft may be slidably disposed within the sheath. A handle may be coupled to the proximal end region of the sheath. The handle may be designed to axially shift the shaft relative to the sheath. A snare may be coupled to the shaft. The snare may include a first region, a traction region, and a distal tip region. The first region may have a non-circular cross-sectional shape. The traction region may include a plurality of traction members. At a position between two adjacent traction members the snare may have a reduced cross-sectional area relative to the first region. The distal tip region may have a circular cross-sectional shape.

SUTURE BASED CLOSURE DEVICE

A suture device may include a suture translation assembly configured to be axially translatable within a lumen of a delivery system and a distal assembly configured to be securable to the distal end of the delivery system. The suture translation assembly and the distal assembly may cooperate to enable a user to pass a needle back and forth between the two in order to endoscopically suture a defect.

MEDICAL DEVICE WITH A MOVABLE TIP

Medical devices and methods are disclosed. An example medical guidewire (210) for accessing a body lumen along a biliary and/or pancreatic tract may include an elongated member (212) having a distal end (216) and a proximal end (214). The guidewire may include a movable distal tip (232) positioned at the distal end of the elongated member. The guidewire may also include an electromechanical actuator (270) for actuating movement of the distal tip. The actuation of the electromechanical actuator actuates movement of the adjustable distal tip and facilitates cannulation of one or more of a bile duct (18) and a pancreatic duct (16).

VENA CAVA DELIVERY SYSTEM

A delivery system (10) for delivery and deployment of devices (23) having abrading portions (24) within a patient's lumen. A lumen in a flexible catheter (13) that extends proximally from a distal end (15) of the catheter receives the device in a compact form. At least one impervious segment (20) positioned in the lumen overlies the abrading portions of the device to shield and buffer the catheter from the abrading portions. The segment is of a relatively short length so that the catheter remains relatively flexible therealong to ease the transit of the catheter through the patient's lumen to a delivery site. Additional segments (50, 51, 52) may be disposed in the catheter distally of the segment or the segment may move with the device to the distal end to buffer the catheter during deployment of the device. Additional segments mate with the segment so that engaged segments are relatively radially deflectable.

STEERABLE CATHETER WITH RAPID EXCHANGE LUMEN

A medical device for advancement over a guidewire includes a number of lumens therein including a working channel lumen, one or more control wire lumens, and a guidewire lumen. A flexible support within the device includes number of interlocking elements that resist longitudinal compression, transfer rotational torque, and can bend side to side. The flexible support also includes a slot that is aligned with the guidewire lumen. An outer jacket includes a perforation, slot, slit, or thinned area that is aligned with the slot in the support member and the guidewire lumen in order to allow a device such as a guidewire to be removed from the guidewire lumen and through the support member. 1. A method for manufacturing a medical device , the method comprising:extruding a body having a proximal end, a distal end, and a plurality of lumens therein, the lumens including a working channel lumen, at least one control wire lumen, and a slotted guidewire lumen;positioning a flexible support having a proximal end and a distal end over the body such that the flexible support extends from the distal end of the body toward the proximal end of the body, the flexible support having a number of rings that extend circumferentially around the device, hinges that join adjacent pairs of rings together and a slot extending through the rings and along a length of the flexible support;aligning the slot of the flexible support with the slotted guidewire lumen of the body; andpositioning an outer jacket over the flexible support.2. The method of claim 1 , wherein the flexible support comprises a hypotube.3. The method of claim 2 , wherein the rings and hinges are laser cut into the hypotube.4. The method of claim 2 , wherein the rings and hinges are ground into the hypotube.5. The method of claim 1 , wherein the flexible support comprises a flat sheet of material rolled into a final shape.6. The method of claim 5 , wherein the rings and hinges are laser cut from the flat sheet of material ...

Devices and methods for lumen occlusion

A system may include an introducer sheath including a retention member configured to anchor the introducer sheath in a natural body lumen having a wall. The system may also have an elongate member extending along a longitudinal axis through a working channel of the introducer sheath. Additionally, the system may have a manipulating portion coupled to a distal end of the elongate member. The manipulating portion may include at least one selectively actuatable member configured to transition between an undeployed configuration and a deployed configuration. In the undeployed configuration, the at least one actuatable member may extend substantially parallel to the longitudinal axis and in at least one position in the deployed configuration, the at least one actuatable member may extend radially outwardly from the longitudinal axis. In the deployed configuration, the manipulating portion and elongate member may be configured to be proximally retracted toward the working channel of the introducer sheath so as to move a distal portion of the wall towards a proximal portion of the wall.

Suture based closure device

A suture device may include a suture translation assembly configured to be axially translatable within a lumen of a delivery system and a distal assembly configured to be securable to the distal end of the delivery system. The suture translation assembly and the distal assembly may cooperate to enable a user to pass a needle back and forth between the two in order to endoscopically suture a defect.

PULL BACK STENT DELIVERY SYSTEM WITH PISTOL GRIP RETRACTION HANDLE

A stent delivery system for delivering a self-expanding stent to a predetermined location in a vessel includes a catheter body having an axial guidewire lumen and a pull-wire lumen. A medical device such as a selfexpanding stent is held in a reduced delivery configuration for insertion and transport through a body lumen to a predetermined site for deployment. The stent is carried axially around the catheter body near its distal end and held in its reduced configuration by a retractable outer sheath. A proximal retraction handle is connected to the proximal end of the catheter body and includes a pistol grip trigger engaging a rachet mechanism, which is connected to a pull-wire which extends through the pull-wire lumen and is connected to the retractable outer sheath.

Biopsy forceps assemblies

Embodiments of the invention include devices for obtaining tissue including a proximal actuator and a distal assembly having first and second end effectors. The first and second end effectors include the features of at least one element within the inner surface either of the first and second end effectors for aiding in the capture and retention of a targeted tissue sample.

Suture based closure device

A suture device may include a suture translation assembly configured to be axially translatable within a lumen of a delivery system and a distal assembly configured to be securable to the distal end of the delivery system. The suture translation assembly and the distal assembly may cooperate to enable a user to pass a needle back and forth between the two in order to endoscopically suture a defect.

RETRACTABLE TISSUE CUTTING DEVICE

A tissue cutting device includes a flexible elongate body including a channel extending therethrough, a distal member connected to a distal end of the elongate body. The distal member includes a lumen extending therethrough in communication with the channel and a recess extending through an exterior surface of the distal member along a portion of a length thereof. The recess extends includes a receiving structure at a distal end thereof. A cutting element is slidably received within the channel and the lumen so that the cutting element is movable between an open tissue-receiving configuration and a closed tissue-gripping configuration, in which a distal portion of the cutting element extends across the recess such that the distal end of the cutting element is received within the receiving structure, a portion of a length of the distal portion extending radially beyond an exterior surface of the distal member.

DEVICES AND METHODS FOR FASTENING TISSUE LAYERS

FIDUCIAL DEPLOYMENT MECHANISMS, AND RELATED METHODS OF USE

A medical device that may include an elongate member having a proximal end and a distal end, and a lumen disposed through the elongate member is disclosed. The medical device may also include an opening disposed at the distal end of the elongate member in communication with the lumen, and a pushing element disposed with the lumen. The medical device may also include at least one fiducial disposed within the lumen and distal to the pushing element, and a separating mechanism disposed at the distal end of the elongate member. The separating mechanism may be configured to apply a separating force to deploy the at least one fiducial. 1. A medical device , comprising:an elongate member having a proximal end and a distal end;a lumen disposed through the elongate member;an opening disposed at the distal end of the elongate member in communication with the lumen;a pushing element disposed with the lumen;a plurality of fiducials disposed within the lumen and distal to the pushing element; anda separating mechanism disposed at the distal end of the elongate member, the separating mechanism configured to apply a separating force to deploy one fiducial of the plurality of fiducials as other fiducials of the plurality of fiducials remain disposed within the lumen.2. The medical device of claim 1 , wherein the plurality of fiducials are connected to each other by a linkage.3. The medical device of claim 2 , wherein the separating mechanism is configured to direct the separating force to a distal portion of the linkage to deploy a distalmost fiducial.4. The medical device of claim 1 , wherein:the at least one fiducial is one of a plurality of fiducials disposed within the lumen; andadjacent fiducials of the plurality of fiducials are disposed within compartments separated by spacers.5. The medical device of claim 4 , wherein the separating mechanism is configured to apply the separating force to a distalmost spacer to deploy a distalmost fiducial.6. A method of deploying multiple ...

Devices and methods for tissue invagination

Surgical devices and methods used for invaginating tissue during, for example, an endoscopic fundoplication procedure, are disclosed. The device includes an elongated tube having a proximal end configured to extend outside of the body and a distal end configured to extend proximate the tissue to be invaginated, and a distal member coupled to the distal end of the tube. The distal member is configured to hold or grasp the tissue to be invaginated. The devices may include a protective distal sleeve.

Tissue fasteners and related deployment systems and methods

Extendible flexible sheath

A sheath for a medical instrument includes an elongate body extending from a proximal end to a distal face. The elongate body may be configured to axially extend from a first length to a second length greater than the first length. The sheath may include a first hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face, and a second hollow lumen extending from the proximal end to the distal face. The second lumen may be open at the distal face. The sheath may also include a transparent window positioned at the second end of the first lumen to seal the first lumen at the second end. The transparent window may be configured to transmit light therethrough.

Medical device with a movable tip

Medical devices and methods are disclosed. An example medical guidewire (210) for accessing a body lumen along a biliary and/or pancreatic tract may include an elongated member (212) having a distal end (216) and a proximal end (214). The guidewire may include a movable distal tip (232) positioned at the distal end of the elongated member. The guidewire may also include an electromechanical actuator (270) for actuating movement of the distal tip. The actuation of the electromechanical actuator actuates movement of the adjustable distal tip and facilitates cannulation of one or more of a bile duct (18) and a pancreatic duct (16).

Recoilable thrombosis filtering device and method

A thrombosis filter which can be securely affixed at a selected location in the vascular system of a patient and removed when no longer required, and method for removing the thrombosis filter. An embodiment of the thrombosis filter includes a plurality of struts made from a shape memory alloy which changes shape at a temperature other than body temperature, thereby allowing removal of the filter.

Fiducial deployment mechanisms, and related methods of use

A medical device that may include an elongate member having a proximal end and a distal end, and a lumen disposed through the elongate member is disclosed. The medical device may also include an opening disposed at the distal end of the elongate member in communication with the lumen, and a pushing element disposed with the lumen. The medical device may also include at least one fiducial disposed within the lumen and distal to the pushing element, and a separating mechanism disposed at the distal end of the elongate member. The separating mechanism may be configured to apply a separating force to deploy the at least one fiducial.

ENDOSCOPES HAVING MULTIPLE LUMENS FOR TISSUE ACQUISITION AND REMOVAL AND RELATED METHODS OF USE

Embodiments of the invention include an endoscope including multiple lumens for tissue acquisition and removal and related methods of use.

Device and method for selectively removing a thrombus filter

A thrombus filter which can be securely fixed in a selected location in the vascular system of a patient and removed when no longer required. The thrombus filter includes a plurality of struts which radiate from a body portion to form the generally conical shape of the thrombus filter. The thrombus filter includes anchor members joined to the free end of each strut. The thrombus filter includes an insulating layer substantially covering the thrombus filter including the body portion, the struts and the anchor members. The insulating layer includes an opening proximate the anchor members. The opening in the insulating layer creates a conductive path between the thrombus filter and the patient's body. When removal of the thrombus filter is desired, a first electrical conductor forms an electrical connection with the body portion of the thrombus filter. A second electrical conductor forms an electrical connection with the patient's body. A power supply is used to selectively apply a voltage ...

Medical Devices Having Micropatterns

Medical devices having one or more micropatterned surfaces (e.g., micropatterned coatings).

Tissue fastening devices and processes that promote tissue adhesion

The invention in certain aspects relates to a surgical fastener for fastening tissue segments having tissue surfaces. The fastener includes a first fastener member having a base and a piercing element connected to the base for piercing the tissue segments to be fastened, a second fastener member having an opening for receiving and retaining the piercing element of the first fastener member such that the tissue segments to be fastened are retained between the first and second fastening members, and means for promoting adhesion between the tissue surfaces. The invention also relates to related methods and devices for promoting adhesion of tissue segments and preventing fastener migration, especially in an endoscopic procedure for the treatment of GERD.

Elongate medical device with articulating portion

An articulating portion for an elongate medical device is disclosed. The articulating portion may include a plurality of segments movable relative to one another, and a plurality of hinges disposed between adjacent segments. The segments can be configured to bend at the hinges upon manipulation of a control member of the device. The segments and the hinges can also be a single continuous piece of material.

APPARATE ZUM VERBINDEN VON GEWEBESCHICHTEN

APPARATE ZUM VERBINDEN VON GEWEBESCHICHTEN

POLYPECTOMY SNARE DEVICES

Polypectomy devices and methods for making and using polypectomy devices are disclosed. An example polypectomy device may include an elongate sheath having a proximal end region and a distal end region. A shaft may be slidably disposed within the sheath. A handle may be coupled to the proximal end region of the sheath. The handle may be designed to axially shift the shaft relative to the sheath. A snare may be coupled to the shaft. The snare may include a first region, a traction region, and a distal tip region. The first region may have a non-circular cross-sectional shape. The traction region may include a plurality of traction members. At a position between two adjacent traction members the snare may have a reduced cross-sectional area relative to the first region. The distal tip region may have a circular cross-sectional shape. 1. A polypectomy device , comprising:an elongate sheath having a proximal end region and a distal end region;a shaft slidably disposed within the sheath;a handle coupled to the proximal end region of the sheath;a snare coupled to the shaft, the snare including a first region having a first cross-sectional shape, a traction region including a plurality of traction members, and a distal tip region;wherein at a position between two adjacent traction members the snare has a second cross-sectional shape that is geometrically similar to the first cross-sectional shape and has a reduced cross-sectional area relative to the first region; andwherein the distal tip region has a circular cross-sectional shape.2. The polypectomy device of claim 1 , wherein the snare is formed from a monofilament wire.3. The polypectomy device of claim 1 , wherein the first cross-sectional shape is a non-circular shape.4. The polypectomy device of claim 3 , wherein the snare has a first leg and a second leg claim 3 , and wherein the first cross-sectional shape of the first region is non-circular along both the first leg and the second leg.5. The polypectomy device of ...

TISSUE SPREADER FOR ACCESSING PAPILLA, AND RELATED METHODS OF USE

The medical device may include an elongate member having a proximal end and a distal end, and a plurality of legs coupled to the distal end of the elongate member. The medical device may also include a moveable element distal to the distal end of the elongate member, disposed around the plurality of legs. The moveable element may be reciprocally moveable relative to the elongate member and plurality of legs between a first and second position. The plurality of legs may be in a collapsed configuration when the moveable element is in the first position, and may be in an expanded configuration when the moveable element is in the second position.

Device and method for selectively removing a thrombus filter

A thrombus filter which can be securely fixed in a selected location in the vascular system of a patient and removed when no longer required. The thrombus filter includes a plurality of struts which radiate from a body portion to form the generally conical shape of the thrombus filter. The thrombus filter includes anchor members joined to the free end of each strut. The thrombus filter includes an insulating layer substantially covering the thrombus filter including the body portion, the struts and the anchor members. The insulating layer includes an opening proximate the anchor members. The opening in the insulating layer creates a conductive path between the thrombus filter and the patient's body. When removal of the thrombus filter is desired, a first electrical conductor forms an electrical connection with the body portion of the thrombus filter. A second electrical conductor forms an electrical connection with the patient's body. A power supply is used to selectively apply a voltage differential between the thrombus filter and the body of the patient. This voltage differential induces an electrical current the flow of electrical current between the thrombus filter and the patient's blood causes the electrolytic corrosion of the thrombus filter proximate the opening in the insulating layer. When the bond between the struts of the thrombus filter and the anchors is cut through or weakened, the thrombus filter may be pulled into the lumen of a retrieval catheter. Removal of the thrombus filter from the patient's body is completed by withdrawing the retrieval catheter from the patient's blood vessel.

TISSUE RETRACTION DEVICES AND RELATED METHODS OF USE

The present disclosure is directed to a medical instrument. The medical instrument may include a delivery device and a retraction mechanism including a target tissue anchor and a first stabilizing anchor, wherein the target tissue anchor attaches to target tissue and connects to the delivery device. 1. A medical instrument comprising:a delivery device; anda retractor including a target tissue anchor and a first stabilizing anchor, wherein the target tissue anchor attaches to target tissue and connects to the delivery device.2. The medical instrument of claim 1 , wherein the first stabilizing anchor attaches to a portion of a body wall of a patient distal to the delivery device.3. The medical instrument of claim 1 , further comprising a tension mechanism connecting the target tissue anchor and the first stabilizing anchor claim 1 , wherein the tension mechanism includes at least one of a spring claim 1 , a string claim 1 , a wire claim 1 , a rod claim 1 , a pulley claim 1 , and an elastic band.4. The medical instrument of claim 1 , wherein the delivery device includes an overtube and the retractor is at least partially disposed in the overtube.5. The medical instrument of claim 1 , wherein the first stabilizing anchor has an expanded configuration and a contracted configuration.6. The medical instrument of claim 1 , wherein the first stabilizing anchor is one of an inflatable balloon or an expandable structure comprised of a plurality of wires.7. The medical instrument of claim 1 , wherein the delivery device includes an articulation section claim 1 , and the first stabilizing anchor attaches to the delivery device proximal of the articulation section.8. The medical instrument of claim 1 , wherein the target tissue anchor includes one of a clip claim 1 , a suture claim 1 , a corkscrew claim 1 , a spike claim 1 , a hook claim 1 , a grasper claim 1 , a staple claim 1 , an adhesive claim 1 , a loop claim 1 , a spiral loop claim 1 , and a helical loop.9. The medical ...

Devices and methods for tissue invagination

Surgical devices and methods used for invaginating tissue during, for example, an endoscopic fundoplication procedure, are disclosed. The device includes an elongated tube having a proximal end configured to extend outside of the body and a distal end configured to extend proximate the tissue to be invaginated, and a distal member coupled to the distal end of the tube. The distal member is configured to hold or grasp the tissue to be invaginated. The devices may include a protective distal sleeve.

Elongate medical device with articulating portion

An articulating portion for an elongate medical device is disclosed. The articulating portion may include a plurality of segments movable relative to one another, and a plurality of hinges disposed between adjacent segments. The segments can be configured to bend at the hinges upon manipulation of a control member of the device. The segments and the hinges can also be a single continuous piece of material.

RETRACTABLE TISSUE CUTTING DEVICE

A tissue cutting device includes a flexible elongate body including a channel extending therethrough, a distal member connected to a distal end of the elongate body. The distal member includes a lumen extending therethrough in communication with the channel and a recess extending through an exterior surface of the distal member along a portion of a length thereof. The recess extends includes a receiving structure at a distal end thereof. A cutting element is slidably received within the channel and the lumen so that the cutting element is movable between an open tissue-receiving configuration and a closed tissue-gripping configuration, in which a distal portion of the cutting element extends across the recess such that the distal end of the cutting element is received within the receiving structure, a portion of a length of the distal portion extending radially beyond an exterior surface of the distal member. 115-. (canceled)16. A tissue cutting device , comprising:a flexible elongate body extending longitudinally from a proximal end to a distal end and including a channel extending longitudinally therethrough;a distal member connected to the distal end of the elongate body, the distal member including a lumen extending therethrough in communication with the channel and a recess extending through an exterior surface of the distal member along a portion of a length thereof, the recess extending from a proximal end to a distal end which includes a receiving structure; anda cutting element slidably received within the channel and the lumen so that the cutting element is movable between an open tissue-receiving configuration, in which a distal end of the cutting element is proximal of the recess, and a closed tissue-gripping configuration, in which a distal portion of the cutting element extends across the recess such that the distal end of the cutting element is moved toward the distal end of the recess to be received within the receiving structure, a portion of a ...

Pull back stent delivery system with pistol grip retraction handle

A stent delivery system for delivering a self-expanding stent to a predetermined location in a vessel includes a catheter body having an axial guidewire lumen and a pull-wire lumen. A medical device such as a self-expanding stent is held in a reduced delivery configuration for insertion and transport through a body lumen to a predetermined site for deployment. The stent is carried axially around the catheter body near its distal end and held in its reduced configuration by a retractable outer sheath. A proximal retraction handle is connected to the proximal end of the catheter body and includes a pistol grip trigger engaging a rachet mechanism, which is connected to a pull-wire which extends through the pull-wire lumen and is connected to the retractable outer sheath.

Devices and methods for fastening tissue layers

Endoscopic devices and methods used for fastening multiple tissue layers, such as, for example, an endoscopic fundoplication procedure, are disclosed. The device may include, for example, an elongated tubular member having a proximal end for extending outside of the body and a distal end for positioning proximate the multiple tissue layers, a grasper configured for positioning proximate the distal end of the tubular member and for grasping at least one of the multiple tissue layers, a device coupled to the distal end of the tubular member for folding the multiple tissue layers together, a tissue fastener configured to be inserted into the tissue layers to hold the tissue layers together, and a fastener head for inserting the tissue fastener into the tissue layers.

Tissue fasteners and related deployment systems and methods

Surgical tissue fasteners and related deployment systems and methods are disclosed. A tissue fastener used to join multiple tissue layers includes a first member, a second member, and a connecting member connecting the first and second members. In some embodiments, the first and second members are configured to expand from a delivered state to a deployed state in which the fastener secures the tissue layers together. In other tissue fastener embodiments the connecting member has an elastic compressive spring force for applying a substantially constant force on the tissue layers for adjusting a length of the connecting member between the first and second members.

Recoilable thrombosis filtering device and method

A thrombosis filter which can be securely affixed at a selected location in the vascular system of a patient and removed when no longer required. A first embodiment of the thrombosis filter includes a plurality of struts having a first grouping and a second grouping. The first grouping of struts and the second grouping of struts radiate in opposite directions. The free ends of the struts include anchoring elements which anchor into the walls of a blood vessel. At least one grouping of struts is comprised of a shape memory material. When these struts are at body temperature, their free ends engage the wall of the blood vessel. When the temperature of the shape memory alloy struts is selectively varied from body temperature, the struts retract into the body portion of the thrombosis filter. A second embodiment of the thrombosis filter includes a generally cylindrical anchoring portion, and a generally conical filtering portion, the filtering portion includes a plurality of elongated strands ...

Tissue retraction devices and related methods of use

The present disclosure is directed to a medical instrument. The medical instrument may include a delivery device and a retraction mechanism including a target tissue anchor and a first stabilizing anchor, wherein the target tissue anchor attaches to target tissue and connects to the delivery device.

Extendible flexible sheath

A sheath for a medical instrument includes an elongate body extending from a proximal end to a distal face. The elongate body may be configured to axially extend from a first length to a second length greater than the first length. The sheath may include a first hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face, and a second hollow lumen extending from the proximal end to the distal face. The second lumen may be open at the distal face. The sheath may also include a transparent window positioned at the second end of the first lumen to seal the first lumen at the second end. The transparent window may be configured to transmit light therethrough.

Endoscopes having multiple lumens for tissue acquisition and removal and related methods of use

Embodiments of the invention include an endoscope including multiple lumens for tissue acquisition and removal and related methods of use.

SUTURE BASED CLOSURE DEVICE

A suture device may include a suture translation assembly configured to be axially translatable within a lumen of a delivery system and a distal assembly configured to be securable to the distal end of the delivery system. The suture translation assembly and the distal assembly may cooperate to enable a user to pass a needle back and forth between the two in order to endoscopically suture a defect.

Endoscopes having multiple lumens for tissue acquisition and removal and related methods of use

Embodiments of the invention include an endoscope including multiple lumens for tissue acquisition and removal and related methods of use.

Medical device capable of injection, cutting and coagulation

A device for treating tissue includes a catheter including an elongated body extending from a proximal end to a distal end and including a lumen extending therethrough, a distal tip connected to the distal end of the elongated body and including a first electrode and a second electrode extending thereabout, the first electrode extending to a distal opening of the lumen and a first needle extending longitudinally from a proximal end to a distal end, the first needle slidably received within the lumen of the catheter to be moved between a retracted bipolar configuration, in which the distal end of the needle is proximal the distal opening of the catheter, and an extended monopolar configuration, in which the distal end of the first needle extends distally past the distal opening of the catheter so that the first needle contacts the first electrode and is configured to cut tissue.

Devices and methods for treating a lung

Methods and devices for treating a lung are disclosed. The method may include deploying a catheter into an airway of the lung, and discharging a media into the airway through the catheter. The media may be configured to increase elasticity of lung tissue in the vicinity of the airway or occlude the airway.

ELONGATE MEDICAL DEVICE WITH ARTICULATING PORTION

An articulating portion for an elongate medical device is disclosed. The articulating portion may include a plurality of segments movable relative to one another, and a plurality of hinges disposed between adjacent segments. The segments can be configured to bend at the hinges upon manipulation of a control member of the device. The segments and the hinges can also be a single continuous piece of material. 1. An articulating portion for an elongate medical device , comprising:a plurality of segments movable relative to one another; anda plurality of hinges disposed between adjacent segments, wherein the segments are configured to bend at the hinges upon manipulation of a control member of the device, andwherein the segments and the hinges are a single continuous piece of material.2. The articulating portion of claim 1 , wherein at least one of the hinges comprises a twisted strip of material having a central portion oriented perpendicularly to opposing ends of the strip3. The articulating portion of claim 2 , wherein the central portion of the at least one hinge is oriented perpendicularly to an adjacent side wall of one of the segments.4. The articulating portion of claim 1 , wherein at least one of the hinges comprises a spiral-shaped strip of material.5. The articulating portion of claim 1 , wherein at least one of the hinges comprises a serpentine-shaped strip of material.6. The articulating portion of claim 1 , wherein one hinge is positioned 180 degrees apart from another hinge.7. The articulating portion of claim 1 , wherein one hinge is positioned 90 degrees apart from another hinge.8. The articulating portion of claim 1 , wherein each hinge is positioned within a gap defined by edges of the adjacent segments.9. The articulating portion of claim 1 , wherein the adjacent segments each comprise at least one flat area claim 1 , wherein the at least one flat area is adjacent to at least one of the hinges.10. The articulating portion of claim 1 , further ...

Biopsy forceps assemblies

Embodiments of the invention include devices for obtaining tissue including a proximal actuator and a distal assembly having first and second end effectors. The first and second end effectors include the features of at least one element within the inner surface either of the first and second end effectors for aiding in the capture and retention of a targeted tissue sample.

Retractable tissue cutting device

A tissue cutting device includes a flexible elongate body including a channel extending therethrough, a distal member connected to a distal end of the elongate body. The distal member includes a lumen extending therethrough in communication with the channel and a recess extending through an exterior surface of the distal member along a portion of a length thereof. The recess extends includes a receiving structure at a distal end thereof. A cutting element is slidably received within the channel and the lumen so that the cutting element is movable between an open tissue-receiving configuration and a closed tissue-gripping configuration, in which a distal portion of the cutting element extends across the recess such that the distal end of the cutting element is received within the receiving structure, a portion of a length of the distal portion extending radially beyond an exterior surface of the distal member.

Tissue fastening devices and processes that promote tissue adhesion

The invention in certain aspects relates to a surgical fastener for fastening tissue segments having tissue surfaces. The fastener includes a first fastener member having a base and a piercing element connected to the base for piercing the tissue segments to be fastened, a second fastener member having an opening for receiving and retaining the piercing element of the first fastener member such that the tissue segments to be fastened are retained between the first and second fastening members, and means for promoting adhesion between the tissue surfaces. The invention also relates to related methods and devices for promoting adhesion of tissue segments and preventing fastener migration, especially in an endoscopic procedure for the treatment of GERD.

Biopsy forceps assemblies

Embodiments of the invention include devices for obtaining tissue including a proximal actuator and a distal assembly having first and second end effectors. The first and second end effectors include the features of at least one element within the inner surface either of the first and second end effectors for aiding in the capture and retention of a targeted tissue sample.

Disposable sheath

A sheath for a medical instrument may include an elongate body extending from a proximal end to a distal face, and a first hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face. The sheath may also include a transparent window positioned at the second end of the first lumen to seal the first lumen at the second end. The transparent window may be configured to transmit light therethrough.

MEDICAL DEVICE WITH A MOVABLE TIP

Medical devices and methods are disclosed. An example medical guidewire for accessing a body lumen along a biliary and/or pancreatic tract may include an elongated member having a distal end and a proximal end. The guidewire may include a movable distal tip positioned at the distal end of the elongated member. The guidewire may also include an electromechanical actuator for actuating movement of the distal tip. The actuation of the electromechanical actuator actuates movement of the adjustable distal tip and facilitates cannulation of one or more of a bile duct and a pancreatic duct. 1. A medical guidewire for accessing a body lumen along a biliary and/or pancreatic tract , the medical guidewire comprising:an elongated member having a distal end and a proximal end;a movable distal tip positioned at the distal end of the elongated member;an electromechanical actuator for causing movement of the distal tip;wherein actuation of the electromechanical actuator actuates movement of the movable distal tip and facilitates cannulation of one or more of a common bile duct and a pancreatic duct.2. The medical guidewire of claim 1 , wherein the distal end of the elongated member is manually steerable.3. The medical guidewire of claim 1 , wherein:the elongated member has a main body coupled to the distal tip;the main body has a maximum first diameter and the distal tip has a maximum second diameter smaller than the maximum first diameter.4. The medical guidewire of claim 1 , wherein the electromechanical actuator comprises a piezoelectric element attached to the elongated member for effecting movement of the distal tip.5. The medical guidewire of claim 4 , wherein the electromechanical actuator comprises a controller in electrical communication with the piezoelectric element.6. The medical guidewire of claim 5 , wherein the controller allows for selection of one or more types of movement of the distal tip.7. The medical guidewire of claim 5 , wherein the controller allows ...

Fiducial deployment mechanisms, and related methods of use

A medical device that may include an elongate member having a proximal end and a distal end, and a lumen disposed through the elongate member is disclosed. The medical device may also include an opening disposed at the distal end of the elongate member in communication with the lumen, and a pushing element disposed with the lumen. The medical device may also include at least one fiducial disposed within the lumen and distal to the pushing element, and a separating mechanism disposed at the distal end of the elongate member. The separating mechanism may be configured to apply a separating force to deploy the at least one fiducial.

Apparatus and system for removing an obstruction from a lumen

An apparatus and system for removing an obstruction from a body lumen simultaneously mechanically dislodges the obstruction, macerates the obstruction, and aspirates the effluent caused thereby. The maceration is effected by directing pressurized fluid to the obstruction, while the obstruction is dislodged by a tip portion formed on the end of a guidewire. The apparatus includes a flexible catheter having at least two channels individually accommodating fluid flow paths towards and away from the obstruction. The guidewire may be disposed in either of the channels or a third channel formed in the flexible catheter. The apparatus also includes a drive unit for rotating the guidewire. The drive unit may be an external drive unit, such as an electrical motor, or may include drive elements formed on the guidewire within a drive chamber, across which the fluid flows and imparts energy against the drive elements to cause rotation of the guidewire.

Tissue fasteners and related deployment systems and methods

Surgical tissue fasteners and related deployment systems and methods are disclosed. A tissue fastener used to join multiple tissue layers includes a first member, a second member, and a connecting member connecting the first and second members. In some embodiments, the first and second members are configured to expand from a delivered state to a deployed state in which the fastener secures the tissue layers together. Other tissue fastener embodiments include means for applying a substantially constant force on the tissue layers and/or means for adjusting a length of the connecting member between the first and second members.

TISSUE FASTENING DEVICES AND PROCESSES THAT PROMOTE TISSUE ADHESION

The invention in certain aspects relates to a surgical fastener for fastening tissue segments having tissue surfaces. The fastener includes a first fastener member having a base and a piercing element connected to the base for piercing the tissue segments to be fastened, a second fastener member having an opening for receiving and retaining the piercing element of the first fastener member such that the tissue segments to be fastened are retained between the first and second fastening members, and means for promoting adhesion between the tissue surfaces. The invention also relates to related methods and devices for promoting adhesion of tissue segments and preventing fastener migration, especially in an endoscopic procedure for the treatment of GERD. 169-. (canceled)70. A method for fastening tissue , the method comprising:positioning a segment of tissue between first and second members of a tissue fastening device, wherein the second member is rotatably coupled to the first member, and the first member extends distally from a distal end of a tube;penetrating the segment of tissue with a penetrating member that projects from the first member; andapplying a tissue fastener to the segment of tissue, wherein at least a portion of the tissue fastener is supported from the first member during application of the tissue fastener.71. The method of claim 70 , wherein positioning the segment of tissue includes rotating the second member about the distal end of first member to hold the segment of tissue.72. The method of claim 70 , wherein penetrating the segment of tissue includes penetrating with the penetrating member extending at one of an obtuse angle and an acute angle from an exterior surface of the first member.73. The method of claim 72 , wherein penetrating the segment of tissue includes positioning the penetrating member in a gap between the first and second members.74. The method of claim 70 , wherein applying the tissue fastener includes penetrating the segment of ...

Endoscopic Bite Guard and Related Methods of Use

A medical device may include a bite guard assembly configured to restrict sliding movement of an elongated member relative to the bite guard assembly. The bite guard assembly may include a main portion including a mouthpiece. The main portion may include a surface defining a passageway for receipt of the elongated member therethrough. The bite guard assembly may also include a securing portion configured to restrict movement of the elongated member through the passageway and that is configured to be disposed between the surface and the elongated member.

Devices and methods for treating a lung

Methods and devices for treating a lung are disclosed. The method may include deploying a catheter into an airway of the lung, and discharging a media into the airway through the catheter. The media may be configured to increase elasticity of lung tissue in the vicinity of the airway or occlude the airway.

DEVICES AND METHODS FOR LUMEN OCCLUSION

A system may include an introducer sheath including a retention member configured to anchor the introducer sheath in a natural body lumen having a wall. The system may also have an elongate member extending along a longitudinal axis through a working channel of the introducer sheath. Additionally, the system may have a manipulating portion coupled to a distal end of the elongate member. The manipulating portion may include at least one selectively actuatable member configured to transition between an undeployed configuration and a deployed configuration. In the undeployed configuration, the at least one actuatable member may extend substantially parallel to the longitudinal axis and in at least one position in the deployed configuration, the at least one actuatable member may extend radially outwardly from the longitudinal axis. In the deployed configuration, the manipulating portion and elongate member may be configured to be proximally retracted toward the working channel of the introducer sheath so as to move a distal portion of the wall towards a proximal portion of the wall.

Pull back stent delivery system with pistol grip retraction handle

A stent delivery system for delivering a self-expanding stent to a predetermined location in a vessel includes a catheter body having an axial guidewire lumen and a pull-wire lumen. A medical device such as a self-expanding stent is held in a reduced delivery configuration for insertion and transport through a body lumen to a predetermined site for deployment. The stent is carried axially around the catheter body near its distal end and held in its reduced configuration by a retractable outer sheath. A proximal retraction handle is connected to the proximal end of the catheter body and includes a pistol grip trigger engaging a rachet mechanism, which is connected to a pull-wire which extends through the pull-wire lumen and is connected to the retractable outer sheath.

Endoscopic bite guard and related methods of use

A medical device may include a bite guard assembly configured to restrict sliding movement of an elongated member relative to the bite guard assembly. The bite guard assembly may include a main portion including a mouthpiece. The main portion may include a surface defining a passageway for receipt of the elongated member therethrough. The bite guard assembly may also include a securing portion configured to restrict movement of the elongated member through the passageway and that is configured to be disposed between the surface and the elongated member.

DISPOSABLE SHEATH

A sheath for a medical instrument may include an elongate body extending from a proximal end to a distal face, and a first hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face. The sheath may also include a transparent window positioned at the second end of the first lumen to seal the first lumen at the second end. The transparent window may be configured to transmit light therethrough.

Vena cava delivery system

A delivery system for delivery and deployment of devices having abrading portions within a patient's lumen. A lumen in a flexible catheter that extends proximally from a distal end of the catheter receives the device in a compact form. At least one impervious segment positioned in the lumen overlies the abrading portions of the device to shield and buffer the surface of the lumen from the abrading portions. The segment is of a relatively short length so that the catheter remains relatively flexible therealong to enable relative ease in the transit of the catheter through the patient's lumen to a delivery site. Additional segments may be disposed in the catheter distally of the segment or the segment may move with the device to the distal end to buffer the walls of the catheter during the deployment of the device. Additional segments mate with the segment so that engaged ones of the segments are relatively radial deflectable.

Suture based closure device

A suture device may include a suture translation assembly configured to be axially translatable within a lumen of a delivery system and a distal assembly configured to be securable to the distal end of the delivery system. The suture translation assembly and the distal assembly may cooperate to enable a user to pass a needle back and forth between the two in order to endoscopically suture a defect.

Recoilable thrombosis filtering device and method

A thrombosis filter which can be securely affixed at a selected location in the vascular system of a patient and removed when no longer required. An embodiment of the thrombosis filter includes a plurality of struts formed of a shape memory material. A change in temperature can cause the struts to extend and engage a wall of a blood vessel.

Needle with Helical Grooves Converting Axial Movement to Rotational Movement

A device for penetrating tissues within a living body, comprises a shaft extending from a proximal end which, in an operative position, remains outside the body to a distal end which, in the operative position, is within a living body, the shaft comprising a channel extending therethrough from the proximal end to an opening at the distal end. The device also comprises a needle extending within the channel and comprising a tissue penetrating tip. A portion of an outer surface of the needle includes a first structure wrapping therearound and configured to mate with a second structure formed on a corresponding portion of an inner wall of the shaft. The first and second structures mate with one another so that, as the needle is urged axially through the channel, the mating causes the needle to rotate about an axis of the channel.

TISSUE FASTENERS AND RELATED DEPLOYMENT SYSTEMS AND METHODS

Surgical tissue fasteners and related deployment systems and methods are disclosed. A tissue fastener used to join multiple tissue layers includes a first member, a second member, and a connecting member connecting the first and second members. In some embodiments, the first and second members are configured to expand from a delivered state to a deployed state in which the fastener secures the tissue layers together. Other tissue fastener embodiments include means for applying a substantially constant force on the tissue layers and/or means for adjusting a length of the connecting member between the first and second members. 172-. (canceled)73. A tissue fastener used to join multiple tissue layers within a body , comprising:a proximal member configured to transform from a delivered state to a deployed state;a distal member configured to transform from a delivered state to a deployed state; anda flexible connecting member connecting the proximal member and the distal member together, wherein, in the deployed state of each of the proximal member and the distal member, the proximal member and the distal member secure the multiple tissue layers together in a manner that permits the proximal member to articulate with respect to the distal member.74. The tissue fastener of claim 73 , wherein claim 73 , in the deployed state of each of the proximal member and the distal member claim 73 , the tissue fastener is configured to permit adjustment of a length of the connecting member between the proximal member and the distal member.75. The tissue fastener of claim 74 , wherein the connecting member extends through at least one of the proximal member and the distal member.76. The tissue fastener of claim 73 , wherein the connecting member includes suture material.77. The tissue fastener of claim 73 , wherein the connecting member includes one of a knit claim 73 , a woven claim 73 , or a braided material.78. The tissue fastener of claim 73 , wherein claim 73 , in the deployed ...

TISSUE FASTENING DEVICES AND PROCESSES THAT PROMOTE TISSUE ADHESION

The invention in certain aspects relates to a surgical fastener for fastening tissue segments having tissue surfaces. The fastener includes a first fastener member having a base and a piercing element connected to the base for piercing the tissue segments to be fastened, a second fastener member having an opening for receiving and retaining the piercing element of the first fastener member such that the tissue segments to be fastened are retained between the first and second fastening members, and means for promoting adhesion between the tissue surfaces. The invention also relates to related methods and devices for promoting adhesion of tissue segments and preventing fastener migration, especially in an endoscopic procedure for the treatment of GERD.

EXTENDIBLE FLEXIBLE SHEATH

A sheath for a medical instrument includes an elongate body extending from a proximal end to a distal face. The elongate body may be configured to axially extend from a first length to a second length greater than the first length. The sheath may include a first hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face, and a second hollow lumen extending from the proximal end to the distal face. The second lumen may be open at the distal face. The sheath may also include a transparent window positioned at the second end of the first lumen to seal the first lumen at the second end. The transparent window may be configured to transmit light therethrough. 1. A sheath for a medical instrument , comprising:an elongate body extending from a proximal end to a distal face, the elongate body being configured to axially extend from a first length to a second length greater than the first length;a first hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face;a second hollow lumen extending from the proximal end to the distal face, the second lumen being open at the distal face; anda transparent window positioned at the second end of the first lumen to seal the first lumen at the second end, the transparent window being configured to transmit light therethrough.2. The sheath of claim 1 , further including a third lumen extending from the proximal end to the distal face claim 1 , the third lumen being open at the distal face.3. The sheath of claim 2 , wherein the elongate body includes a diverging element positioned proximate the distal face claim 2 , wherein activation of the diverging element enables the second lumen and the third lumen to diverge from each other at the distal face.4. The sheath of claim 1 , wherein the elongate body further includes an extendible section that is configured to extend and increase a length of the elongate body from the first length to the ...

DISPOSABLE SHEATH WITH LIGHTING

A sheath for a medical device may include an elongate body extending from a proximal end to a distal face and a first hollow lumen and a second hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face. The sheath may also include at least one lighting device positioned in the sheath proximate the distal face, and a transparent window positioned at the second end of the first lumen to seal the first lumen at the second end. The transparent window may be configured to transmit light therethrough. 1. A sheath for a medical device , comprising:an elongate body extending from a proximal end to a distal face;a first hollow lumen and a second hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face;at least one lighting device positioned in the sheath proximate the distal face; anda transparent window positioned at the second end of the first lumen to seal the first lumen at the second end, the transparent window being configured to transmit light therethrough.2. The sheath of claim 1 , wherein the at least one lighting device includes a plurality of lighting devices spaced apart from each other.3. The sheath of claim 2 , wherein the plurality of lighting claim 2 , devices are symmetrically positioned with respect to a longitudinal axis of the sheath.4. The sheath of claim 1 , wherein the at least one lighting device includes a plurality of lighting devices positioned as a ring along a periphery of the sheath.5. The sheath of . claim 1 , further including a second transparent window positioned at the second end of the second lumen to seal the second lumen at the second end claim 1 , the transparent window being configured to transmit light therethrough.6. The sheath of claim 5 , wherein the transparent window at the second end of the first lumen and the second transparent window at the second end of the second lumen are part of a same transparent window.7. The sheath of ...

BIOPSY FORCEPS ASSEMBLIES

Embodiments of the invention include devices for obtaining tissue including a proximal actuator and a distal assembly having first and second end effectors. The first and second end effectors include the features of at least one element within the inner surface either of the first and second end effectors for aiding in the capture and retention of a targeted tissue sample. 180-. (canceled)82. The device of claim 81 , wherein the spike is a pyramid-shaped spike having triangular shaped surfaces that meet at the tip.83. The device of claim 81 , wherein the tooth disposed on the first terminal edge of the first jaw engages the recess disposed on the first terminal edge of the second jaw when the first and second jaws are in the closed configuration.84. The device of claim 81 , wherein:the first jaw further includes a recess disposed adjacent the tooth on the first terminal edge of the first jaw; andthe second jaw further includes a tooth disposed adjacent the recess on the first terminal edge of the second jaw.85. The device of claim 84 , wherein:the tooth disposed on the first terminal edge of the first jaw engages the recess disposed on the first terminal edge of the second jaw when the first and second jaws are in the closed configuration; andthe tooth disposed on the first terminal edge of the second jaw engages the recess disposed on the first terminal edge of the first jaw when the first and second jaws are in the closed configuration.86. The device of claim 85 , wherein the lateral edges of the first and second jaws are void of teeth.87. The device of claim 81 , wherein the tip of the spike does not extend into the through-hole when the first and second jaws are in the closed configuration.88. The device of claim 81 , wherein the first and second jaws are pivotally coupled to one another via a pin.89. The device of claim 81 , wherein the first and second jaws each includes a stepped-down heel portion to permit substantially complete jaw closure when in the ...

EXTENDIBLE FLEXIBLE SHEATH

A sheath for a medical instrument includes an elongate body extending from a proximal end to a distal face. The elongate body may be configured to axially extend from a first length to a second length greater than the first length. The sheath may include a first hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face, and a second hollow lumen extending from the proximal end to the distal face. The second lumen may be open at the distal face. The sheath may also include a transparent window positioned at the second end of the first lumen to seal the first lumen at the second end. The transparent window may be configured to transmit light therethrough. 120-. (canceled)21. A sheath , comprising:a member extending from a proximal end to a distal end;a distally facing face located at the distal end of the member;a neck region extending distally beyond the distal end from the distally facing face;a first lumen extending from the proximal end of the member, beyond the distal end of the member, and within the neck region; anda second lumen extending from the proximal end of the member to the distally facing face;wherein the member includes a first extendible section configured to axially extend and contract between a first length and a second length, greater than the first length, to position the neck region and the distally facing face; andwherein the neck region includes a second extendible section configured to axially extend and contract between a third length and a fourth length, greater than the third length.22. The sheath of claim 21 , wherein the neck region is fixed to the distally facing face.23. The sheath of claim 21 , wherein a diameter of the neck region is less than a diameter of the distally facing face.24. The sheath of claim 21 , further comprising a third lumen extending from the proximal end of the member to the distally facing face.25. The sheath of claim 24 , wherein the second lumen and the third ...

REVOLVING APPROXIMATION DEVICE

A device for treating tissue includes a helical needle extending about a longitudinal axis thereof from a distal tip to a proximal end and a control member extending longitudinally between a distal end releasably coupled to the proximal end of the helical needle and a proximal end which, when the helical needle is inserted into a body, remains outside the body, the control member configured such that rotation of the control member about the longitudinal axis rotates the helical needle to screw the helical needle distally into a target tissue. 115-. (canceled)16. A device for treating tissue , comprising:a helical needle extending about a longitudinal axis thereof from a distal tip to a proximal end;a control member extending longitudinally between a distal end releasably coupled to the proximal end of the helical needle and a proximal end which, when the helical needle is inserted into a body, remains outside the body, the control member configured such that rotation of the control member about the longitudinal axis rotates the helical needle to screw the helical needle distally into a target tissue.17. The device of claim 16 , wherein a helical diameter of the helical needle varies along a length thereof.18. The device of claim 16 , wherein the helical needle is formed of a superelastic shape memory material.19. The device of claim 16 , wherein claim 16 , when an unconstrained helical diameter of the helical needle is greater than an inner diameter of a working channel of an insertion instrument through which it is to be inserted to the target tissue within the body claim 16 , the helical diameter is compressible via the working channel so that claim 16 , when the helical needle is extended distally out of the working channel claim 16 , the helical needle expands to the unconstrained helical diameter.20. The device of claim 16 , wherein the proximal end of the control member is connected to a handle assembly including an actuator for rotating the control member.21. ...

SCOOPER CORE NEEDLE

A device for collecting a tissue sample includes Needle and Stylet. Needle is extending longitudinally from a proximal to a distal end and includes a lumen extending therethrough. Stylet is movably housed in the lumen and extending along a longitudinal axis from a proximal to a distal end and includes a scooper at the distal end thereof. The scooper is connected to a proximal portion of Stylet via a hinge biased toward a bent position in which the scooper is bent away from the longitudinal axis. Stylet is movable between a constrained configuration and a tissue-collecting configuration. The scooper includes a channel extending longitudinally therethrough and a window extending laterally through a wall thereof in communication with the channel to collect a tissue sample therethrough as Stylet is moved from the tissue-collecting to the constrained. 115-. (canceled)16. A device for collecting a tissue sample , comprising:a needle extending longitudinally from a proximal end to a distal end and comprising a lumen extending therethrough; anda stylet movably housed in the lumen of the needle, the stylet extending along a longitudinal axis from a proximal end to a distal end and comprising a scooper at the distal end thereof, the scooper connected to a proximal portion of the stylet via a hinge biased toward a bent position in which the scooper is bent away from the longitudinal axis, the stylet movable between a constrained configuration, in which an interior surface of the needle constrains the scooper in axial alignment with the proximal portion, and the tissue-collecting configuration, in which the scooper extends distally past the distal end of the needle such that the hinge is permitted to revert to the biased bent position so that the scooper bends away from the longitudinal axis, the scooper including a channel extending longitudinally therethrough and a window extending laterally through a wall thereof in communication with the channel to collect a tissue sample ...

Polypectomy snare devices

Polypectomy devices and methods for making and using polypectomy devices are disclosed. An example polypectomy device may include an elongate sheath having a proximal end region and a distal end region. A shaft may be slidably disposed within the sheath. A handle may be coupled to the proximal end region of the sheath. The handle may be designed to axially shift the shaft relative to the sheath. A snare may be coupled to the shaft. The snare may include a first region, a traction region, and a distal tip region. The first region may have a non-circular cross-sectional shape. The traction region may include a plurality of traction members. At a position between two adjacent traction members the snare may have a reduced cross-sectional area relative to the first region. The distal tip region may have a circular cross-sectional shape.

ELONGATE MEDICAL DEVICE WITH ARTICULATING PORTION

An articulating portion for an elongate medical device is disclosed. The articulating portion may include a plurality of segments movable relative to one another, and a plurality of hinges disposed between adjacent segments. The segments can be configured to bend at the hinges upon manipulation of a control member of the device. The segments and the hinges can also be a single continuous piece of material. 1. An articulating portion for an elongate medical device , comprising:a plurality of segments movable relative to one another; anda plurality of hinges disposed between adjacent segments, wherein the segments are configured to bend at the hinges upon manipulation of a control member of the device, andwherein the segments and the hinges are a single continuous piece of material.2. The articulating portion of claim 1 , wherein at least one of the hinges comprises a twisted strip of material having a central portion oriented perpendicularly to opposing ends of the strip3. The articulating portion of claim 2 , wherein the central portion of the at least one hinge is oriented perpendicularly to an adjacent side wall of one of the segments.4. The articulating portion of claim 1 , wherein at least one of the hinges comprises a spiral-shaped strip of material.5. The articulating portion of claim 1 , wherein at least one of the hinges comprises a serpentine-shaped strip of material.6. The articulating portion of claim 1 , wherein one hinge is positioned 180 degrees apart from another hinge.7. The articulating portion of claim 1 , wherein one hinge is positioned 90 degrees apart from another hinge.8. The articulating portion of claim 1 , wherein each hinge is positioned within a gap defined by edges of the adjacent segments.9. The articulating portion of claim 1 , wherein the adjacent segments each comprise at least one flat area claim 1 , wherein the at least one flat area is adjacent to at least one of the hinges.10. The articulating portion of claim 1 , further ...

Fiducial deployment mechanisms, and related methods of use

A medical device that may include an elongate member having a proximal end and a distal end, and a lumen disposed through the elongate member is disclosed. The medical device may also include an opening disposed at the distal end of the elongate member in communication with the lumen, and a pushing element disposed with the lumen. The medical device may also include at least one fiducial disposed within the lumen and distal to the pushing element, and a separating mechanism disposed at the distal end of the elongate member. The separating mechanism may be configured to apply a separating force to deploy the at least one fiducial.

FIDUCIAL DEPLOYMENT MECHANISMS, AND RELATED METHODS OF USE

A medical device that may include an elongate member having a proximal end and a distal end, and a lumen disposed through the elongate member is disclosed. The medical device may also include an opening disposed at the distal end of the elongate member in communication with the lumen, and a pushing element disposed with the lumen. The medical device may also include at least one fiducial disposed within the lumen and distal to the pushing element, and a separating mechanism disposed at the distal end of the elongate member. The separating mechanism may be configured to apply a separating force to deploy the at least one fiducial. 114-. (canceled)15. A medical device , comprising:a shaft having a proximal end and a distal end;a lumen disposed through the shaft;an opening disposed at the distal end of the shaft in communication with the lumen;a fiducial disposed within the lumen, the fiducial including a distal portion and a proximal portion connected to the distal portion; anda separating mechanism at the distal end of the shaft, the separating mechanism configured to separate the distal portion of the fiducial from the proximal portion of the fiducial.16. The medical device of claim 15 , further including a pushing element disposed with the lumen claim 15 , wherein the fiducial is positioned distal to the pushing element.17. The medical device of claim 16 , wherein the pushing element is configured to deploy the distal portion of the fiducial outward from the lumen via the opening by applying a distally-directed force against the proximal portion.18. The medical device of claim 15 , wherein the fiducial is one of a plurality of fiducials disposed within the lumen and connected to each other by a linkage claim 15 , such that each of the distal portion and the proximal portion of the fiducial is at least one of the plurality of fiducials.19. The medical device of claim 18 , wherein the linkage includes a wire or a suture extending through each of the plurality of ...

Medical Devices Having Micropatterns

Medical devices having one or more micropatterned surfaces (e.g., micropatterned coatings). 1. A medical device comprising:a catheter;a balloon mounted on the catheter, the balloon extending longitudinally from a distal end to a proximal end and having an outer surface, the balloon radially expandable from a first state wherein the balloon has a first diameter to an inflated state wherein the balloon has a second diameter greater than the first diameter; the lateral-facing surface,', 'a distal-facing surface extending from the distal end of the lateral-facing surface to the distal end of the balloon and having a diameter less than the lateral-facing surface, and', 'a proximal-facing surface extending from the proximal end of the lateral-facing surface to the proximal end of the balloon and having a diameter less than the lateral-facing surface,, 'wherein the balloon, in the inflated state, defines a laterally-facing body portion that extends along the portion of the balloon having the largest diameter, the lateral-facing body portion comprising a lateral-facing surface, wherein the outer surface of the balloon compriseswherein at least a portion of the outer surface of the balloon comprises a micropattern.2. The medical device of claim 1 , wherein the micropattern comprises an adhesive micropattern.3. The medical device of claim 1 , wherein at least a portion of the catheter comprises a micropattern.4. The medical device of claim 1 , wherein a portion of the catheter that is proximal of the balloon comprises a micropattern.5. The medical device of claim 1 , wherein the micropattern of the catheter and the micropattern of the balloon are contiguous.6. The medical device of claim 1 , wherein the proximal-facing surface comprises a micropattern.7. The medical device of claim 6 , wherein the distal-facing surface does not include a micropattern.8. The medical device of claim 6 , wherein the lateral-facing surface does not include a micropattern.9. The medical device of ...

DEVICES AND METHODS FOR TREATING A LUNG

Methods and devices for treating a lung are disclosed. The method may include deploying a catheter into an airway of the lung, and discharging a media into the airway through the catheter. The media may be configured to increase elasticity of lung tissue in the vicinity of the airway or occlude the airway. 15-. (canceled)6. A method of treating a lung , comprising:deploying a catheter into an airway of the lung; anddischarging a media into the airway through the catheter, the media being configured to expand in the airway and occlude the airway after being discharged from the catheter, wherein the media includes a shell enclosing an expandable material.7. (canceled)8. The method of claim 6 , wherein the media includes a drug claim 6 , and the method further includes releasing the drug into the airway from the media after the discharging.914-. (canceled)15. The method of claim 6 , wherein the shell increases in temperature and softens when discharged into the airway.16. The method of claim 15 , wherein the shell expands via a force applied by the expandable material after softening.17. The method of claim 16 , wherein the shell is a thermoplastic shell.18. The method of claim 16 , wherein the expandable material is a liquid hydrocarbon claim 16 , and after discharge of the media into the airway claim 16 , the liquid hydrocarbon within each thermoplastic shell increases a pressure within the thermoplastic shell.19. The method of claim 6 , wherein occluding the airway causes diseased tissue of the airway to necrose.20. The method of claim 19 , wherein an ability of remaining tissue of the lung to expand increases after necrosis of the diseased tissue of the airway.21. The method of claim 8 , wherein the drug includes an antimicrobial agent claim 8 , an analgesic claim 8 , and/or an anesthetic.22. The method of claim 6 , wherein the shell is configured to dissolve in the airway to release the expandable material.23. The method of claim 6 , wherein an outer surface of ...

SUTURE BASED CLOSURE DEVICE

A suture device may include a suture translation assembly configured to be axially translatable within a lumen of a delivery system and a distal assembly configured to be securable to the distal end of the delivery system. The suture translation assembly and the distal assembly may cooperate to enable a user to pass a needle back and forth between the two in order to endoscopically suture a defect. 1. A suture device for use in combination with a delivery system including a lumen extending through the delivery system , the suture device comprising: a needle usable to carry a suture;', 'a distal shuttle configured to releasably secure the needle; and', 'a user interface extending proximally from the distal shuttle, the user interface configured to enable a user to releasably secure the needle; and, 'a suture translation assembly configured to be axially translatable within the lumen of the delivery system, the delivery system including a distal end, the suture translation assembly including an endcap configured to releasably engage and disengage the needle, the endcap configured to engage the needle when the needle is advanced distally into the endcap, and to release the needle when the needle is locked to the distal shuttle and the distal shuttle is withdrawn proximally; and', 'a guide member configured to permit the suture translation assembly to extend through the guide member and to translate relative to the guide member., 'a distal assembly configured to be securable to the distal end of the delivery system, the distal assembly including2. The suture device of claim 1 , wherein the needle comprises a distal region and a proximal region claim 1 , the distal region including a distal detent for releasably engaging the endcap claim 1 , the proximal region including a proximal detent for releasably engaging the distal shuttle.3. The suture device of claim 2 , wherein the endcap comprises:a proximal needle opening configured to accommodate the needle when the needle ...

DEVICES FOR REDUCING LUNG VOLUME AND RELATED METHODS OF USE

A method for isolating a portion of a lung may include inserting a treatment device into an airway of a patient, and applying energy from the treatment device to a treatment site in the airway to at least partially occlude the airway to inhibit air from entering the airway distal to the treatment site. 1. A method for isolating a portion of a lung , the method comprising:inserting a treatment device into an airway of a patient; andapplying energy from the treatment device to a treatment site in the airway to at least partially occlude the airway to inhibit air from entering the airway distal to the treatment site.2. The method of claim 1 , wherein the energy is applied to completely occlude the airway to isolate the portion of the lung that is distal to the airway from a remaining portion of the lung.3. The method of claim 1 , further including deploying microparticles or nanoparticles into the airway.4. The method of claim 3 , further including exciting the microparticles or nanoparticles to apply the thermal energy to the airway.5. The method of claim 1 , wherein the treatment device is configured to deliver thermal energy via RF claim 1 , microwave claim 1 , ultrasound claim 1 , light claim 1 , or laser.6. The method of claim 1 , further including deploying an electrode into the airway.7. The method of claim 6 , wherein the electrode is formed on an expandable distal member.8. The method of claim 7 , wherein the expandable distal member is a basket having a plurality of legs movable between a collapsed configuration and an expanded configuration claim 7 , the plurality of legs being configured to contact a wall of the airway in the expanded configuration claim 7 , the electrode being formed on at least one of the plurality of legs.9. The method of claim 1 , further including deploying a balloon into the airway.10. The method of claim 9 , wherein the balloon is inflated with a fluid to place an outer surface of the balloon in contact with the airway wall.11. The ...

DEVICES AND METHODS FOR TREATING A LUNG

Methods and devices for treating a lung are disclosed. The method may include deploying a catheter into an airway of the lung, and discharging a media into the airway through the catheter. The media may be configured to increase elasticity of lung tissue in the vicinity of the airway or occlude the airway. 1. A method of treating a lung , comprising:deploying a catheter into an airway of the lung; anddischarging a media into the airway through the catheter, the media being configured to increase elasticity of lung tissue in the vicinity of airway.2. The method of claim 1 , wherein discharging the media includes chemically washing the airway using the media.3. The method of claim 1 , wherein the injectable media is one of (i) a polymer claim 1 , (ii) an oil claim 1 , (iii) a gel claim 1 , (iv) a surfactant.4. The method of claim 1 , wherein discharging the media includes injecting the media into the airway using a needle fluidly coupled to a distal end of the catheter.5. The method of claim 1 , wherein discharging the media includes injecting the media into a tissue of the airway.6. A method of treating a lung claim 1 , comprising:deploying a catheter into an airway of the lung; anddischarging a media into the airway through the catheter, the media being configured to expand in the airway and occlude the airway after being discharged from the catheter.7. The method of claim 6 , further including a plurality of the media claim 6 , wherein the plurality of media interlock together in the airway after the discharging.8. The method of claim 6 , wherein the media includes a drug claim 6 , and the method further includes releasing the drug into the airway from the media after the discharging.9. A method of treating a lung claim 6 , comprising:deploying a catheter into an airway of the lung; anddepositing a predetermined pattern of a media into the airway through the catheter, the media being drug suspension in a biodegradable polymer.10. The method of claim 9 , wherein ...

DEVICES, METHODS AND KITS FOR TISSUE APPROXIMATION

The present disclosure pertain to methods of tissue approximation of a tissue opening in a tissue wall of a body lumen. The method comprises pushing a suitable device through the tissue wall near at least one edge of the opening and pulling opposing edges of the tissue opening nearer to one another or into contact with one another. Also described are devices and kits that are useful for approximation of a tissue opening in a tissue wall of a body lumen. 1. A method for tissue approximation of a tissue opening in a tissue wall of a body lumen having an inner luminal tissue wall surface and an outer abluminal tissue wall surface , said method comprising (a) providing a device selected from either (i) a first device comprising a suture having first and second ends and a tissue anchor secured to said first end or (ii) a second device comprising an angled or curved needle , (b) pushing said device through the tissue wall near at least one edge of said opening and (c) pulling opposing edges of said tissue opening nearer to one another or in contact with one another.2. The method of claim 1 , wherein the selected device is said first device and wherein said method comprises (a) attaching said anchor to the inner luminal tissue wall surface near a first edge of said tissue opening claim 1 , (b) pushing said second end through the tissue wall near a second edge of said tissue opening opposite the first edge such that the second end is positioned beyond the outer abluminal tissue wall surface claim 1 , and (c) pulling said second end through said opening such that it is positioned inside the inner luminal tissue wall surface claim 1 , wherein the second end is pulled until the first and second edges of said tissue opening are drawn nearer to one another or in contact with one another.3. The method of claim 2 , wherein the anchor is an adhesive pad that adheres to the luminal tissue wall surface.4. The method of claim 2 , wherein the anchor is an anchor that pierces the ...

ENDOSCOPES HAVING MULTIPLE LUMENS FOR TISSUE ACQUISITION AND REMOVAL AND RELATED METHODS OF USE

Embodiments of the invention include an endoscope including multiple lumens for tissue acquisition and removal and related methods of use. 161-. (canceled)62. An apparatus , comprising:a tissue acquisition device; anda tissue removal device, wherein the tissue removal device includes an elongate member defining a suction lumen and an expandable distal assembly coupled to the elongate member, wherein the expandable distal assembly is configured to expand in a body lumen to at least partially surround and at least partially contain both a distal end of the tissue removal device and a distal end of the elongate member.63. The apparatus of claim 62 , further comprising:an introducing member including a plurality of lumens, wherein the tissue acquisition device is disposed within a first lumen of the plurality of lumens, and the tissue removal device is disposed within a second lumen of the plurality of lumens.64. The apparatus of claim 62 , wherein the tissue acquisition device is selectively steerable to control a tissue sample when the tissue sample is unattached from the body lumen.65. The apparatus of claim 62 , wherein the tissue acquisition device includes at least one jaw.66. The apparatus of claim 62 , wherein the tissue acquisition device defines a lumen.67. The apparatus of claim 62 , wherein the tissue acquisition device includes a storage portion.68. The apparatus of claim 67 , wherein the storage portion is configured to store one or more tissue samples and is disposed at the proximal end of the tissue acquisition device.69. The apparatus of claim 62 , wherein the expandable distal assembly includes a closed distal end.70. An apparatus claim 62 , comprising:a tissue acquisition device including a first elongate member and a first distal assembly; anda tissue removal device, wherein the tissue removal device includes a second elongate member defining a suction lumen and an expandable distal assembly coupled to the second elongate member, wherein the ...

Pull back stent delivery system with pistol grip retraction handle

A stent delivery system for delivering a self-expanding stent to a predetermined location in a vessel includes a catheter body having an axial guidewire lumen and a pull-wire lumen. A medical device such as a self-expanding stent is held in a reduced delivery configuration for insertion and transport through a body lumen to a predetermined site for deployment. The stent is carried axially around the catheter body near its distal end and held in its reduced configuration by a retractable outer sheath. A proximal retraction handle is connected to the proximal end of the catheter body and includes a pistol grip trigger engaging a rachet mechanism, which is connected to a pull-wire which extends through the pull-wire lumen and is connected to the retractable outer sheath.

Extendible flexible sheath

A sheath for a medical instrument includes an elongate body extending from a proximal end to a distal face. The elongate body may be configured to axially extend from a first length to a second length greater than the first length. The sheath may include a first hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face, and a second hollow lumen extending from the proximal end to the distal face. The second lumen may be open at the distal face. The sheath may also include a transparent window positioned at the second end of the first lumen to seal the first lumen at the second end. The transparent window may be configured to transmit light therethrough.

Devices and methods for fastening tissue layers

Endoscopic devices and methods used for fastening multiple tissue layers, such as, for example, an endoscopic fundoplication procedure, are disclosed. The device may include, for example, an elongated tubular member (15) having a proximal end for extending outside of the body and a distal end for positioning proximate the multiple tissue layers (4, 6), a grasper (80) configured for positioning proximate the distal end of the tubular member and for grasping at least one of the multiple tissue layers, a device (20) coupled to the distal end of the tubular member for folding the multiple tissue layers together, a tissue fastener (200) configured to be inserted into the tissue layers to hold the tissue layers together, and a fastener head for inserting the tissue fastener into the tissue layers.

Endoscopic bite guard and related methods of use

A medical device may include a bite guard assembly configured to restrict sliding movement of an elongated member relative to the bite guard assembly. The bite guard assembly may include a main portion including a mouthpiece. The main portion may include a surface defining a passageway for receipt of the elongated member therethrough. The bite guard assembly may also include a securing portion configured to restrict movement of the elongated member through the passageway and that is configured to be disposed between the surface and the elongated member.

FABRIC FIXERS.

Un fijador de tejido (501) utilizable para unir múltiples capas de tejido, que comprende: un miembro proximal (511) configurado para expandirse de un estado suministrado a un estado desplegado un miembro distal (513) configurado para expandirse de un estado suministrado a un estado desplegado; y un miembro de conexión (512) que conecta el miembro proximal (511) al miembro distal; en el que el miembro de conexión (512) comprende un miembro alargado (512) configurado para ejercer una fuerza de arrastre entre los miembros proximal y distal (511, 513) y en el que en el estado desplegado, el miembro proximal (511) y el miembro distal (513) fijan a las múltiples capas de tejido juntas, y al menos uno del miembro proximal y el miembro distal incluye una pluralidad de patas, teniendo cada una al menos una parte de flexión que permite que una parte distal de la pata se doble con respecto a una parte proximal de la pata en el estado desplegado caracterizado porque el miembro proximal (511) se dispone de forma que pueda moverse sobre el miembro de conexión (512) y configurado para hacerle avanzar distalmente a lo largo del miembro de conexión (512).

Device and method for selectively removing a thrombus filter

A thrombus filter which can be securely fixed in a selected location in the vascular system of a patient and removed when no longer required. The thrombus filter includes a plurality of struts and includes anchor members joined to the free end of each strut. The thrombus filter includes an insulating layer substantially covering the thrombus filter including the body portion, the struts and the anchor members and an opening proximate the anchor members, which creates a conductive path between the thrombus filter and the patient's body. When removal of the thrombus filter is desired, a power supply is used to selectively apply a voltage differential between the thrombus filter and the body of the patient, causing the electrolytic corrosion of the thrombus filter proximate the opening in the insulating layer. When the bond with the anchors is cut through or weakened, the thrombus filter may be pulled into the lumen of a retrieval catheter.

Devices and kits for tissue approximation

The present disclosure pertain to methods of tissue approximation of a tissue opening in a tissue wall of a body lumen. The method comprises pushing a suitable device through the tissue wall near at least one edge of the opening and pulling opposing edges of the tissue opening nearer to one another or into contact with one another. Also described are devices and kits that are useful for approximation of a tissue opening in a tissue wall of a body lumen.

Medical device capable of injection, cutting and coagulation

A device for treating tissue includes a catheter including an elongated body extending from a proximal end to a distal end and including a lumen extending therethrough, a distal tip connected to the distal end of the elongated body and including a first electrode and a second electrode extending thereabout, the first electrode extending to a distal opening of the lumen and a first needle extending longitudinally from a proximal end to a distal end, the first needle slidably received within the lumen of the catheter to be moved between a retracted bipolar configuration, in which the distal end of the needle is proximal the distal opening of the catheter, and an extended monopolar configuration, in which the distal end of the first needle extends distally past the distal opening of the catheter so that the first needle contacts the first electrode and is configured to cut tissue.

DEVICES AND PROCEDURE FOR FABRIC INVAGINATION.

Un dispositivo quirúrgico adaptado para sujetar el tejido esofágico durante un procedimiento de fundoplicatura, que comprende: - un miembro proximal que tiene un puerto de vacío que se puede conectar a una fuente de vacío; - un conducto sustancialmente flexible (20) que tiene un extremo proximal conectado al miembro proximal, teniendo el conducto (20) una luz en comunicación fluida con la fuente de vacío, y - un miembro distal conectado a un extremo distal del conducto (20) y configurado para sujetar el tejido esofágico cuando se suministra succión al puerto de vacío desde la fuente de vacío, caracterizado porque - el miembro distal incluye un poste (15a'); y - el dispositivo quirúrgico comprende un conjunto de mandíbula (14') configurado para sujetar el tejido esofágico, estando accionado el conjunto de mandíbula (14') mediante un cable (18) que pasa alrededor del poste (15a'). A surgical device adapted to hold the esophageal tissue during a fundoplication procedure, comprising: - a proximal member having a vacuum port that can be connected to a vacuum source; - a substantially flexible conduit (20) having a proximal end connected to the proximal member, the conduit (20) having a light in fluid communication with the vacuum source, and - a distal member connected to a distal end of the conduit (20) and configured to hold the esophageal tissue when suction is supplied to the vacuum port from the vacuum source, characterized in that - the distal member includes a post (15a '); and - the surgical device comprises a jaw assembly (14 ') configured to hold the esophageal tissue, the jaw assembly (14') being operated by a cable (18) that passes around the post (15a ').

Devices for lumen occlusion

Vorrichtungen für die gewebsinvagination

Scooper core needle

A device for collecting a tissue sample includes Needle and Stylet. Needle is extending longitudinally from a proximal to a distal end and includes a lumen extending therethrough. Stylet is movably housed in the lumen and extending along a longitudinal axis from a proximal to a distal end and includes a scooper at the distal end thereof. The scooper is connected to a proximal portion of Stylet via a hinge biased toward a bent position in which the scooper is bent away from the longitudinal axis. Stylet is movable between a constrained configuration and a tissue-collecting configuration. The scooper includes a channel extending longitudinally therethrough and a window extending laterally through a wall thereof in communication with the channel to collect a tissue sample therethrough as Stylet is moved from the tissue-collecting to the constrained.

Suture based closure device

A suture device may include a suture translation assembly configured to be axially translatable within a lumen of a delivery system and a distal assembly configured to be securable to the distal end of the delivery system. The suture translation assembly and the distal assembly may cooperate to enable a user to pass a needle back and forth between the two in order to endoscopically suture a defect.

Biopsy forceps assemblies

Gewebebefestigungsvorrichtungen zur förderung der gewebeadhäsion

Polypectomy snare devices

Polypectomy devices and methods for making and using polypectomy devices are disclosed. An example polypectomy device may include an elongate sheath having a proximal end region and a distal end region. A shaft may be slidably disposed within the sheath. A handle may be coupled to the proximal end region of the sheath. The handle may be designed to axially shift the shaft relative to the sheath. A snare may be coupled to the shaft. The snare may include a first region, a traction region, and a distal tip region. The first region may have a non-circular cross-sectional shape. The traction region may include a plurality of traction members. At a position between two adjacent traction members the snare may have a reduced cross-sectional area relative to the first region. The distal tip region may have a circular cross-sectional shape.

Suture based closure device

Suture based closure device

A suture device may include a suture translation assembly configured to be axially translatable within a lumen of a delivery system and a distal assembly configured to be securable to the distal end of the delivery system. The suture translation assembly and the distal assembly may cooperate to enable a user to pass a needle back and forth between the two in order to endoscopically suture a defect.

Fiducial deployment mechanisms, and related methods of use

A medical device that may include an elongate member having a proximal end and a distal end, and a lumen disposed through the elongate member is disclosed. The medical device may also include an opening disposed at the distal end of the elongate member in communication with the lumen, and a pushing element disposed with the lumen. The medical device may also include at least one fiducial disposed within the lumen and distal to the pushing element, and a separating mechanism disposed at the distal end of the elongate member. The separating mechanism may be configured to apply a separating force to deploy the at least one fiducial.