Implant valve for implantation in a blood vessel
First Claim
1. An implant valve for implantation in a blood vessel, comprising a flexible tube and a hollows, substantially cylindrical support with a casing which is expandable in diameter from an initial position into an implantation position, the support extending over a part of the length of the tube substantially coaxially along the wall of the tube, the casing of the support cooperating with the wall of the tube and, in the implantation position, forming a first part of the tube into a rigid shell which, in use, is clamped substantially coaxially along the inner wall of a blood vessel, while a second, axially contiguous part of the tube forms a flexible tubular valve body, which in use extends substantially clear in the blood vessel, characterized in that the casing of the support cooperates with the inner wall of the tube and in that the support is provided with axially extending support means for supporting, along a part of its circumference, the inner wall of the second part of the tube of the flexible, tubular valve body formed in the implantation position.
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Accused Products
Abstract
An implant valve for implantation in a blood vessel is comprised of a flexible tube and a hollow, substantially cylindrical support with a casing, expandable in diameter from an initial position to an implantation position. The support extends substantially coaxially over a part of the length of the tube along the inner wall of the tube. The casing of the support cooperates with the inner wall of the tube such that, in the implantation position, a first part of the tube can be formed into a rigid shell, which can be clamped substantially coaxially along the inner wall of a blood vessel. A second, axially contiguous part of the tube can then form a flexible, tubular valve body, which can extend substantially clear in the blood vessel. In an advantageous embodiment, the flexible tube comprises a vein turned inside out and the ends of the tube are connected to form a ring embracing the support.
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Citations
11 Claims
- 1. An implant valve for implantation in a blood vessel, comprising a flexible tube and a hollows, substantially cylindrical support with a casing which is expandable in diameter from an initial position into an implantation position, the support extending over a part of the length of the tube substantially coaxially along the wall of the tube, the casing of the support cooperating with the wall of the tube and, in the implantation position, forming a first part of the tube into a rigid shell which, in use, is clamped substantially coaxially along the inner wall of a blood vessel, while a second, axially contiguous part of the tube forms a flexible tubular valve body, which in use extends substantially clear in the blood vessel, characterized in that the casing of the support cooperates with the inner wall of the tube and in that the support is provided with axially extending support means for supporting, along a part of its circumference, the inner wall of the second part of the tube of the flexible, tubular valve body formed in the implantation position.
- 8. A support, such as a stent, comprising a hollow, substantially cylindrical support with a casing expandable in diameter from an initial position to an implantation position, the support being provided with axially extending support means comprising a finger-shaped extension of the casing of the support.
Specification