Device, tools and methods for performing anastomosis
First Claim
Patent Images
1. An anastomosis device for attachment around an orifice in a first tubular tissue or organ and for everting tissue around a perimeter of the orifice, in preparation for anastomosis with a second tubular tissue or organ, said device comprising:
- a ring portion sized to extend around the orifice; and
malleable tines extending radially inward from said ring portion and having tine tips bent at an angle with respect to said radially extending tines and adapted to extend into the orifice, adjacent the perimeter of the orifice, wherein said tine tips are deformable to grasp the perimeter of the orifice, from inside the tubular tissue or organ and said tines are further deformable to evert the tissue around the perimeter of the orifice.
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Accused Products
Abstract
Devices for use in anastomosis, methods and apparatus for installing the devices around long incisions or other orifices in tubular members such as vessels (tissue or artificial graft, or combinations), organs, ducts and the like, and method for performing anastomosis. The devices evert the walls of the tubular members to which they are attached so that an anastomosis performed with the devices joins the two members by contacting the inner walls of the members.
50 Citations
26 Claims
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1. An anastomosis device for attachment around an orifice in a first tubular tissue or organ and for everting tissue around a perimeter of the orifice, in preparation for anastomosis with a second tubular tissue or organ, said device comprising:
a ring portion sized to extend around the orifice; and
malleable tines extending radially inward from said ring portion and having tine tips bent at an angle with respect to said radially extending tines and adapted to extend into the orifice, adjacent the perimeter of the orifice, wherein said tine tips are deformable to grasp the perimeter of the orifice, from inside the tubular tissue or organ and said tines are further deformable to evert the tissue around the perimeter of the orifice.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of attaching an anastomosis device to a tubular structure to be joined by anastomosis, said method comprising the steps of:
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inserting an anvil having a bend forming surface into an orifice formed through a wall of the tubular structure;
advancing an anastomosis device having a ring portion with tines extending radially inward therefrom over the anvil, wherein the tines further include tine tips extending therefrom, substantially perpendicularly to the anvil as the device is advanced over the anvil;
continuing to advance the device until the tine tips extend into the orifice and past the inner wall surface of the tubular structure;
driving the tine tips against the bend forming surface of the anvil by continuing to advance the device, wherein the tine tips are curled under the wall of the tubular structure, thereby gripping the wall between the tine tips and the tines which form a curled tine structure. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A pair of anastomosis devices adapted to form an anastomosis between first and second tubular members having first and second orifices;
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a first device of said pair being adapted for attachment around the orifice in the first tubular member and for everting the wall of the first tubular member at a perimeter of the orifice, and a second device of said pair being adapted for attachment around the orifice in the second tubular member and for everting the wall of the second tubular member at the perimeter of the orifice of the second tubular member;
said first device comprising a ring portion sized to extend around the orifice of the first tubular member; and
malleable tines extending radially inward from said ring portion and having tine tips bent at an angle with respect to said radially extending tines and adapted to extend into the orifice, adjacent the perimeter of the orifice, wherein said tine tips are deformable to grasp the wall at the perimeter of the orifice, from inside the tubular member and said tines are further deformable to evert the tissue around the wall forming the perimeter of the orifice; and
said second device comprising a second ring portion sized to extend around the orifice of the second tubular member and sized to fit concentrically over said ring portion of said first device; and
malleable second tines extending radially inward from said second ring portion and having second tine tips bent at an angle with respect to said radially extending second tines and adapted to extend into the orifice of the second tubular member, adjacent the perimeter of the orifice, wherein said second tine tips are deformable to grasp the wall at the perimeter of the orifice, from inside the tubular member and said second tines are further deformable to evert the wall forming the perimeter of the orifice. - View Dependent Claims (22, 23, 24, 25)
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26. A method of performing an anastomosis, comprising the steps of:
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inserting an anvil having a bend forming surface into an orifice formed through a wall of a first tubular member;
advancing a first anastomosis device having a ring portion with tines extending radially inward therefrom over the anvil, wherein the tines further include tine tips extending therefrom, substantially perpendicularly to the anvil as the device is advanced over the anvil;
continuing to advance the first device and driving the tine tips against the bend forming surface of the anvil by continuing to advance the device, wherein the tine tips are curled under the wall of the tubular member, thereby gripping the wall between the tine tips and the tines which form a curled tine structure;
everting the wall of the first tubular member along a perimeter of the orifice by bending the tines in an opposite direction to the direction of bending of the tine tips;
inserting an anvil having a bend forming surface into an orifice formed through a wall of a second tubular member;
advancing a second anastomosis device having a ring portion sized to fit concentrically over the first ring portion and having second tines extending radially inward therefrom, over the anvil, wherein the second tines further include second tine tips extending therefrom, substantially perpendicularly to the anvil as the second device is advanced over the anvil;
continuing to advance the second device and driving the second tine tips against the bend forming surface of the anvil by continuing to advance the second device, wherein the second tine tips are curled under the wall of the second tubular member, thereby gripping the wall of the second tubular member between the second tine tips and the second tines which form a second curled tine structure;
everting the wall of the second tubular member along a perimeter of the orifice by bending the tines in an opposite direction to the direction of bending of the second tine tips;
sliding the second ring portion concentrically over the first ring portion, thereby contacting the everted wall of the second tubular member with the everted wall of the first tubular member, so that the inner wall surfaces of the first and second tubular members make contact; and
fastening the first and second devices together to maintain contact between the everted wall surfaces and to maintain the second ring portion in a position concentrically surrounding the first ring portion.
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Specification