Device for connecting a tubular vascular prosthesis to a blood vessel and a vascular prosthesis
First Claim
1. A vascular prosthesis provided with branch means, for connecting a branch vessel to a vascular prosthesis arranged in a main blood vessel, said vascular prosthesis comprising a hollow tubular member, and said branch means comprising:
- a internal body inside said tubular member having a flange-shaped portion adjacent an inner wall of said tubular member and comprising a rigid hollow stem and at least one rigid barb member, said stem and said at least one barb member protruding from said flange-shaped portion and penetrating through said wall of said tubular body, in which said stem comprises a hollow channel opening at a free distal side of said stem external of said wall of said tubular member and opening at a proximal side of said stem inside said tubular body; and
a disc-shaped external body registering with said flange-shaped portion at a side of said wall of said tubular member opposite said flange-shaped portion of said internal body, said disc-shaped external body having a bore, said stem extending through said bore, and having a circumferentially extending body portion which receives a free end of said at least one barb member to engage into a firm mutual connection with said internal body,wherein, during use, a wall of said main vessel and said wall of said tubular member are jointly clamped between said flange shaped portion of said internal body and said circumferentially extending body portion of said external body, andwherein, during use, said stem extends inside said branch vessel thereby creating an open fluid connection between said main vessel and said branch vessel through said channel.
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Accused Products
Abstract
Suturing elements for connecting a vascular prosthesis to a blood vessel include an internal, substantially annular body intended to be received in the blood vessel in addition to an external annular body intended to lie clampingly on an outer wall of the blood vessel at least practically at the location of the internal annular body. At least one of the two annular bodies is provided with suturing members which grip in the vessel wall so as to effect an adequate fixation of at least the internal annular body. The device for use with such suturing elements and a vascular prosthesis which is provided on at least one of its outer ends with at least a part of such suturing elements are disclosed. Different embodiments of such prostheses together form a modular vascular prosthesis system. A side vessel of a thus supported blood vessel can be preserved using branch elements.
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Citations
4 Claims
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1. A vascular prosthesis provided with branch means, for connecting a branch vessel to a vascular prosthesis arranged in a main blood vessel, said vascular prosthesis comprising a hollow tubular member, and said branch means comprising:
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a internal body inside said tubular member having a flange-shaped portion adjacent an inner wall of said tubular member and comprising a rigid hollow stem and at least one rigid barb member, said stem and said at least one barb member protruding from said flange-shaped portion and penetrating through said wall of said tubular body, in which said stem comprises a hollow channel opening at a free distal side of said stem external of said wall of said tubular member and opening at a proximal side of said stem inside said tubular body; and a disc-shaped external body registering with said flange-shaped portion at a side of said wall of said tubular member opposite said flange-shaped portion of said internal body, said disc-shaped external body having a bore, said stem extending through said bore, and having a circumferentially extending body portion which receives a free end of said at least one barb member to engage into a firm mutual connection with said internal body, wherein, during use, a wall of said main vessel and said wall of said tubular member are jointly clamped between said flange shaped portion of said internal body and said circumferentially extending body portion of said external body, and wherein, during use, said stem extends inside said branch vessel thereby creating an open fluid connection between said main vessel and said branch vessel through said channel. - View Dependent Claims (2, 3, 4)
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Specification