Abstract:
Methods, devices, apparatus, assemblies, and kits for performing a vascular anastomosis are disclosed. A device for a vascular anastomosis includes tissue engaging portions that can move between at least two configurations. In some embodiments, the tissue engaging portions move without the aid of moving parts, while in other embodiments the tissue engaging portions extend from one or more movable wings. The tissue engaging portions may be separated by a first distance when in a pre-deployment configuration and by a second distance when in a deployed configuration. A method includes engaging a plurality of tissue engaging members of a coupling device against first end tissue. After selectively engaging the tissue engaging members and first end tissue, the first end tissue is stretched by at least moving the tissue engaging members. The stretched first end tissue is coupled to second end tissue by mating the coupling device to a mating anastomosis device.
Abstract:
A stapling apparatus for performing anastomosis on hollow organs consists of two combinable L-shaped tools, a clip retaining tool and a staple retaining tool. Each tool is provided with an elongated handle and a C-shaped jaw. In combined configuration the C-shaped jaw of the clip retaining tool is positioned below the C-shaped jaw of the staple retaining tool with the respective staples in registration with respective underlying clips. The C-shaped jaws provide gaps which permit ingress and egress of hollow organ ends. A staple firing mechanism is operated from the proximal top end of one of the handles of the apparatus whereby downward pressure is applied uniformly and simultaneously against the top of all staples to force them from their retaining sockets, through the hollow organ ends, and into stapling engagement with the respective underlying staple retaining clips.
Abstract:
An apparatus is provided in one example embodiment and includes a body section having an upper surface, a lower surface, and an inner edge circumferentially arranged around at least a portion of an open area. The apparatus also includes a tool extending from the body section into the open area for holding a graft vessel. The lower surface of the body section opposes a receiving vessel when the tool is positioned to transfer the graft vessel to the receiving vessel, such that the graft vessel is axially accessible through the open area to be attached to the receiving vessel. In more specific embodiments, the body section has first and second opposing ends defining a gap sized to permit the vessel to pass through.
Abstract:
The present embodiments provide apparatus and methods for facilitating closure of a bodily opening (75). In one embodiment, a tissue retraction member (20) and a closure member (91) are provided. The tissue retraction member is advanced in a distal direction through the bodily opening in a contracted state, and then expanded at a location distal to the opening. The tissue retraction member then is proximally retracted to engage first and second serosal tissue regions at least partially surrounding the opening, thereby causing the first and second serosal regions to be disposed in an adjacent relationship. The closure member then is deployed around first and second mucosal tissue regions, such that when deployed, the closure member imposes a compressive force to hold the first serosal tissue region in a sealing relationship against the second serosal tissue region to facilitate sealing of the opening.
Abstract:
An anastomosis catheter for joining a first and second severed tubular body element, comprising;(a)semi-rigid shaft characterized by an adjustable length having a distal end and a proximal end with; (b)a distal balloon positioned at said distal end of said shaft and configured for being inserted and at least partially inflated within a first severed body element; (c)a proximal balloon positioned at said proximal end of said shaft and configured for being inserted and inflated within a second severed body element; such that when said shaft is introduced between said body elements and said balloons are inflated within said body elements and said adjustable length portion is adjusted accordingly, said severed ends are maintained and held in contact with one another so that healing between said severed ends is promoted.
Abstract:
Embodiments of the invention provide systems and methods for using a tissue scaffold to facilitate healing of an anastomosis. One embodiment provides a tissue scaffold for placement at an anastomotic site within a body lumen comprising a radially expandable scaffold structure having lateral and mid portions, at least one retention element coupled to each lateral portion and a barrier layer. The retention element engages a luminal wall when the scaffold structure is expanded to retain the structure and exert a compressive force on the anastomosis. The mid portion has a greater radial stiffness than the lateral portions such that when the structure is expanded, the lateral portions engage tissue prior to the mid portion. The barrier layer is configured to engage a luminal wall when the structure is expanded to provide a fluidic seal at the anastomosis. The barrier layer may also include releasable biological agents to promote anastomotic healing.
Abstract:
Methods and devices are provided for anastomosing tissue in the body. In one exemplary embodiment, an anastomotic device is provided having an elongate tubular body that is disposable through a body lumen and that includes proximal and distal portions. The proximal and distal portions can each include a plurality of asymmetrical s-shaped slits and can each be adapted to expand upon rotation to form proximal and distal wings. The proximal and distal wings can extend toward one another to engage tissue therebetween and thereby form a passageway through the tissue.
Abstract:
Devices, systems and methods for performing a minimally invasive endoscopic surgery without the use of sutures or staples. A device and system are described that are capable of isolating at least one targeted tissue and forming an anastomosis between two internal body structures through a completely endoscopic procedure. Further, the device and system described generally comprise two tubular members that are capable of moving in a telescopic fashion relative to one another. Additionally, a method is described for using the device and/or system to bypass the duodenum from digestion.
Abstract:
Disclosed is a system for creating an anastomosis between the inferior vena cava (IVC) and the mesenteric portal vein. The system includes an anastomosis device and a catheter. The anastomosis device brings the IVC and the portal vein into apposition. The resulting anastomosis enables treatment for portal hypertension as well as provides repeated and easy access to the portal system for direct delivery of therapeutic agents to portal organs. The anastomosis device has a proximal flange part, a distal flange part, a flow lumen between them. The proximal and distal flange parts include a plurality of radial struts. A valve part is disposed on one or both of the proximal and distal flange parts. The anastomosis device is made of a memory shape material. The catheter contains a collapsed anastomosis device for insertion and has one or more RF antennas to make the catheter visible under MRI guidance.
Abstract:
A carrier member (7) adapted to transport a surgical instrument or device, particularly an anastomotic ring (5), endoluminally to an operational site (2) in the body of a patient. The carrier member (7) comprises a first seat (8) configured to connect to the surgical instrument or device (5), a second seat (9) for the connection of the carrier member (7) to a guide wire (10) to enable the carrier member (7) to be dragged by the guide wire (10) to said operational site (2).