Devices and methods for performing a vascular anastomosis
First Claim
1. An anastomosis device for connecting a free end of a graft vessel to a wall of a target vessel such that a lumen in the graft vessel is in fluid communication with a lumen in the target vessel through an opening in the wall of the target vessel, the anastomosis device comprising:
- a fastening flange, said fastening flange having a distal surface and a central orifice of sufficient size to accommodate an external diameter of said graft vessel, said fastening flange providing an attachment for said end of said graft vessel by passing said end of said graft vessel through said central orifice and everting said end of said graft vessel over said fastening flange,and a plurality of separate staple members slidably movable with respect to said fastening flange, said staple members being configured to pierce the everted end of said graft vessel and to penetrate the wall of said target vessel thereby attaching said fastening flange and the everted end of said graft vessel to the wall of said target vessel.
0 Assignments
0 Petitions
Accused Products
Abstract
A system for performing an end-to-side vascular anastomosis, including an anastomosis device, an application instrument and methods for performing a vascular anastomosis. The system is applicable for performing an anastomosis between a vascular graft and the ascending aorta in coronary artery bypass surgery, particularly in port-access CABG surgery. A first aspect of the invention includes a vascular anastomosis staple. A first configuration has two parts: an anchor member, forming the attachment with the target vessel wall and a coupling member, forming the attachment with the bypass graft vessel. The anastomosis is completed by inserting the coupling member, with the graft vessel attached, into the anchor member. A second configuration combines the functions of the anchor member and the coupling member into a one-piece anastomosis staple. A second aspect of the invention includes an anastomotic fitting, having an inner flange over which the graft vessel is everted and an outer flange which contacts the exterior surface of the target vessel. A tailored amount of compression applied by the inner and outer flanges grips the target vessel wall and creates a leak-proof seal between the graft vessel and the target vessel. A third aspect of the invention has a flange to which the graft vessel attaches, by everting the graft vessel over the flange, and a plurality of staple-like members which attach the flange and the everted end of the graft vessel to the wall of the target vessel to form the anastomosis.
-
Citations
32 Claims
-
1. An anastomosis device for connecting a free end of a graft vessel to a wall of a target vessel such that a lumen in the graft vessel is in fluid communication with a lumen in the target vessel through an opening in the wall of the target vessel, the anastomosis device comprising:
-
a fastening flange, said fastening flange having a distal surface and a central orifice of sufficient size to accommodate an external diameter of said graft vessel, said fastening flange providing an attachment for said end of said graft vessel by passing said end of said graft vessel through said central orifice and everting said end of said graft vessel over said fastening flange, and a plurality of separate staple members slidably movable with respect to said fastening flange, said staple members being configured to pierce the everted end of said graft vessel and to penetrate the wall of said target vessel thereby attaching said fastening flange and the everted end of said graft vessel to the wall of said target vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. An improved tissue punch of the type having an anvil axially movable with respect to a tubular cutter, said anvil being configured to be slidably received within an internal lumen of said tubular cutter to punch a hole through tissue interposed between said anvil and said tubular cutter, wherein the improvement comprises:
a clamping member coupled to said tissue punch for clamping the tissue to be cut by said tissue punch, the clamping member and the anvil being relatively movable with respect to each other. - View Dependent Claims (31, 32)
Specification