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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0394333 (1995-02-24) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 1240 인용 특허 : 0 |
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
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.
An anastomosis device for connection to a wall of a target vessel 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 graft vessel having a free end, a conduit portion adjacent said free end, and a graft v
An anastomosis device for connection to a wall of a target vessel 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 graft vessel having a free end, a conduit portion adjacent said free end, and a graft vessel lumen extending therethrough; an anchor member, said anchor member having a body with a central opening and a plurality of attachment legs extending from said body adjacent said central opening configured to penetrate said wall of said target vessel for attaching said anchor member to said wall of said target vessel, a coupling member, said coupling member having a tubular body with an internal lumen of sufficient size to accommodate an external diameter of the conduit portion of the graft vessel, a proximal end, and a distal end configured to allow eversion of said free end of said graft vessel thereover to attach said free end of said graft vessel to said coupling member, and a coupling mechanism operative on the coupling member and the anchor member for attaching said coupling member to said anchor member such that said end of said graft vessel is sealingly connected to said wall of said target vessel and said graft vessel lumen is in fluid communication with said lumen of said target vessel through said opening in said wall of said target vessel; wherein each of said plurality of attachment legs is deformable from an initial configuration to a deployed configuration, wherein, in said deployed configuration, said plurality of attachment legs is configured to compress said wall of said target vessel inwardly toward said body of said anchor member, and wherein said coupling member is atraumatic to at least said conduit portion of said graft vessel between said proximal and distal ends of said coupling member.
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