A method of creating an AV fistula between adjacent first and second vessels includes inserting a guidewire from the first vessel into the second vessel. Inserting a catheter including a proximal member and a distal member over the guidewire such that a distal tip of the distal member comes into contact with a selected anastomosis site. Moving the distal member and the proximal member together to clamp tissue surrounding the aperture between the distal face of the proximal member and a proximal face on the distal member. Applying energy to an active heating member on the proximal member to cut and form the aperture, and to weld the edges thereof in order to create a desired fistula between the two vessels. Using a passive heating member disposed on the distal member to create a heating gradient across a tissue contacting surface of the distal member.

Disclosed embodiments include apparatuses, systems, and methods for facilitating surgical anastomosis between bodily passages. In an illustrative embodiment, an eversion mechanism is configured to partially evert a distal portion of an opening of a receiving passage and further configured to leave a proximal portion of the opening of the receiving passage in a non-everted position. A donor support mechanism is configured to partially evert a distal portion of an opening at an end of a donor passage and further configured to leave a first proximal portion of the end of the donor passage in a non-everted position. The donor support mechanism is further configured to form a passage juncture at the end of the donor passage and the opening of the receiving passage. A suturing mechanism is configured to motivate a filament through a generally helical path around the passage juncture to suture the donor passage to the receiving passage.

A locator system deployable at a target site in a first anatomical structure and identifiable from within a second anatomical structure. The locator system includes a signal generator and a tissue-engagement member. The tissue-engagement member engages tissue at the target site so that a delivery system may deliver the locator system and be withdrawn without disturbing the position of the locator system with the tissue-engagement member engaging tissue at the target site. The locator system may be deployed at a target site within a patient's intestines, and identified from within the patient's stomach to create an anastomosis between the stomach and the target site.

A catheter-based device tracks over a guidewire which has been placed from a first blood vessel into a second blood vessel. The distal tip of the catheter is advanced into the second vessel while a proximal member remains in the first vessel. Matching blunt tapered surfaces on each of the distal tip and the proximal member are clamped together, with adjacent walls of each vessel between them, after which a known, controlled pressure is applied between the two surfaces. Heat energy is then applied to the blunt surfaces for approximately 1-30 seconds to weld the walls of the two vessels together. After coaptation of the vessel walls, the heat is increased to then cut through the vessel walls to create a fistula of the desired size.

A surgical suturing apparatus includes an end effector including a jaw assembly and a needle assembly. The jaw assembly includes first and second jaws movable between open and closed positions. Each of the first and second jaws includes a tissue facing surface having an elongated rail and a longitudinal row of teeth. Each tooth of the longitudinal rows of teeth of the first and second jaws includes a needle channel extending therethrough. The elongated rails and the longitudinal rows of teeth of the first and second jaws are disposed in opposed relation relative to each other. The needle assembly includes a first needle, a second needle, and a suture coupled to the first and second needles. The first needle is slidable through the needle channels of the first jaw and the second needle is slidable through the needle channels of the second jaw.

The present disclosure relates to a device for assisting in communicably coupling a first organ body with a second organ body by employing a plurality of arc-shaped tissue connector devices comprising a tissue connector body with a proximal and distal end, and a method for manufacturing such a device. The device comprises a curved frame having a principle axis and configured to embrace, at least partially, the first organ body, the curved frame configured to receive a plurality of tissue connector devices which extend from a proximal end thereof coupled to the curved frame and terminate in a free distal end. The disclosure further relates to a tissue connector device, a holder for tissue connector devices and a tissue-collar manipulating device, and a method of coupling a first and a second organ body using such device.

A surgical device, or a portion of a surgical device, that places purse string sutures in tissue within a body (e.g., intra-peritoneal space). The surgical device includes, or an end effector for a surgical device includes, a jaw assembly, staple cartridges, and a suture.

Various embodiments of a device for deep surgical corridor microvascular anastomosis are described herein. A device, comprising: an elongated body; a rod disposed at least partially within the channel of the elongated body; an actuator in association with the elongated body and the rod, wherein the actuator is operable to actuate the rod in a first axial direction; and a pair of coupling arms in association with the distal portion of the rod, wherein the actuator is operable to actuate the rod in a first axial direction such that the pivotable end of each coupling arm of the pair of coupling arms is consequently actuated in the first axial direction such that the pair of coupling arms are parallel with one another in a closed configuration.

A method, system, or apparatus for stent delivery. Delivering one or more stents with a delivery tool that can include a kinetic transfer of energy to deliver one or more stents. The stents can include a modifiable stent that can change its overall shape and/or dimensions based on preconfigured design parameters. A coil stent that can engage with a vessel that surrounds the modifiable stent forming a dual stent configuration. The coil stent an also include anchor points that allow it to engage with a second vessel securing the first vessel and the second vessel together to aid in the healing process.

Disclosed is a magnetic compression anastomosis system for laparoscopic cholangioenterostomy, including an emission gun, daughter and parent magnetic rings, and an assisting rod, wherein the parent magnetic ring is positioned at the stump of a common bile duct in a purse string suture manner, the relative position is fixed by the assisting rod, the emission gun is loaded with the daughter magnetic ring and makes the same in butt joint with the parent magnetic ring by an intestinal cavity channel of an intestinal tube, the distance between the daughter magnetic ring and the parent magnetic ring is continuously shortened by a push rotary button of the emission gun, and when the relative distance between the daughter and the parent magnetic rings is shortest and mutual attraction is realized, separating the daughter magnetic ring from the emission gun is achieved by an activation mechanism of the emission gun, realizing laparoscopic cholangioenterostomy.