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公开(公告)号：EP0137605A1
公开(公告)日：1985-04-17
申请号：EP84305150.9
申请日：1984-07-30
Applicant: SHILEY INCORPORATED
Inventor： Seiler, Louis, Jr. , Rosenbluth, Robert Frank
CPC classification number: A61L27/507 , A61F2/06 , A61L27/16 , Y10S264/47 , C08L27/18 , A61L27/56
Abstract: A porous tube (1) suitable for use as a vascular graft prosthesis is disclosed. It is reinforced by external ribs (4), integral with the tube wall (6). These ribs are generally transverse to the tube axis and less porous than the wall. Suitable tubing can be made from polymers exhibiting a significant degree of crystallinity, preferably polytetrafluoroethylene. Methods for making these ribbed, porous tubes are also disclosed.
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公开(公告)号：EP0051451A3
公开(公告)日：1982-06-30
申请号：EP81305122
申请日：1981-10-29
Applicant: SHILEY INCORPORATED
IPC: A61F01/22
CPC classification number: A61F2/2418 , A61F2/2409 , A61F2220/0075 , Y10S623/90
Abstract: Prosthetic heart valves having a low profile are disclosed which comprise an annular, right cylindrical, metal stent covered with fabric around which a glutaraldehyde-stabilized pericardial valving element is attached. The valving element is formed of three leaflets, each having a plateau on a truncated triangle extending higher at the center than at the edges, and formed as a cylinder having a diameter substantially equal to the diameter of the stent. In a preferred embodiment of the invention, the stent has upright legs which have radiused upper tips which are approximately one-half the width of prior art stent legs. These narrow tipped stent legs reduce stress induced in the leaflets by curvature of the leaflets around the tips of the stent legs in the closed position, extending the service life of the valve. Tabs are added to the tips of the stent legs to add structural strength. These tabs can be tapered or straight but their bottom portions must be narrower than the stent legs. The tabs have a plurality of holes in them through which coaptation stitches are passed. The coaptation stitch can be two separate stitches, one in a first plane and one in a second plane at 90° to the first plane, or, in the preferred embodi- . ment, a single figure eight stitch passing through the holes in the tab in a plane coincident with the long axis of the stent leg.
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Patent Agency Ranking
公开(公告)号：EP0137605B1
公开(公告)日：1988-06-08
申请号：EP84305150.9
申请日：1984-07-30
Applicant: SHILEY INCORPORATED
Inventor： Seiler, Louis, Jr. , Rosenbluth, Robert Frank
CPC classification number: A61L27/507 , A61F2/06 , A61L27/16 , Y10S264/47 , C08L27/18 , A61L27/56
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公开(公告)号：EP0125393A1
公开(公告)日：1984-11-21
申请号：EP84101480.6
申请日：1981-10-29
Applicant: SHILEY INCORPORATED
IPC: A61F2/24
CPC classification number: A61F2/2412
Abstract: A prosthetic heart valve comprising:
a) a stent comprising:
1) a ring with scallops formed therein defining an aperture with inflow and outflow ends; and
2) a plurality of legs coupled to said ring extending upwardly toward said outflow end, said stent being dimensioned such that the quotient of the radius of curvature of mobile tissue measured at the point of greatest curvature divided by the thickness of said tissue is greater than or equal to five at all points of contact between said tissue and said stent;
b) a plurality of tissue leaflets attached to said stent and to each other to form a valving element; and
c) a plurality of coaptation means in the vicinity of the tips of said stent legs for causing joining of the edges of said tissue leaflets.Abstract translation: 1.一种假体心脏瓣膜，包括：a）支架，包括：1）形成有扇贝的环，其中限定具有流入端和流出端的孔; 以及2）联接到所述环的多个腿向上朝向所述流出端延伸，所述支架的尺寸被设计成使得在最大曲率点处测量的移动组织的曲率半径的商除以所述组织的厚度更大 在所述组织和所述支架之间的所有接触点处不超过或等于5; b）附接到所述支架和彼此以形成阀元件的多个组织小叶; 以及c）在所述支架腿的末端附近的多个接合装置，用于引起所述组织传单的边缘的接合。
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公开(公告)号：EP0125393B1
公开(公告)日：1987-12-09
申请号：EP84101480.6
申请日：1981-10-29
Applicant: SHILEY INCORPORATED
IPC: A61F2/24
CPC classification number: A61F2/2412
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公开(公告)号：EP0051451B1
公开(公告)日：1986-08-13
申请号：EP81305122.4
申请日：1981-10-29
Applicant: SHILEY INCORPORATED
IPC: A61F2/24
CPC classification number: A61F2/2418 , A61F2/2409 , A61F2220/0075 , Y10S623/90
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公开(公告)号：EP0051451A2
公开(公告)日：1982-05-12
申请号：EP81305122.4
申请日：1981-10-29
Applicant: SHILEY INCORPORATED
IPC: A61F2/24
CPC classification number: A61F2/2418 , A61F2/2409 , A61F2220/0075 , Y10S623/90
Abstract: Prosthetic heart valves having a low profile are disclosed which comprise an annular, right cylindrical, metal stent covered with fabric around which a glutaraldehyde-stabilized pericardial valving element is attached. The valving element is formed of three leaflets, each having a plateau on a truncated triangle extending higher at the center than at the edges, and formed as a cylinder having a diameter substantially equal to the diameter of the stent. In a preferred embodiment of the invention, the stent has upright legs which have radiused upper tips which are approximately one-half the width of prior art stent legs. These narrow tipped stent legs reduce stress induced in the leaflets by curvature of the leaflets around the tips of the stent legs in the closed position, extending the service life of the valve. Tabs are added to the tips of the stent legs to add structural strength. These tabs can be tapered or straight but their bottom portions must be narrower than the stent legs. The tabs have a plurality of holes in them through which coaptation stitches are passed. The coaptation stitch can be two separate stitches, one in a first plane and one in a second plane at 90° to the first plane, or, in the preferred embodi- . ment, a single figure eight stitch passing through the holes in the tab in a plane coincident with the long axis of the stent leg.
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