Heart valve prosthesis
First Claim
1. A heart valve prosthesis comprising a stent, obturator means mounted in the stent, and a suture ring which is fitted around the stent, whereinthe suture ring has a core with means which engage the stent and can hold the ring and the stent together axially whilst enabling the core of the ring to rotate relative to the stent, anda covering is applied to the core by directly stitching the covering to the core, at least part of said covering being intended to cooperate with the surface of the stent and to be in contact therewith, the degree of contact determining the resistance to relative rotation of the ring and the stent, and wherein the engagement means of the stent is left completely uncovered by the covering.
2 Assignments
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Accused Products
Abstract
A heart valve prosthesis has a suture ring with a core for form-coupling with the stent of the prosthesis so that the suture ring and the stent are held securely together axially, while the core can rotate relative to the stent. The suture ring has a covering which cooperates with the surface of the stent and is in contact therewith. The degree of contact determines the resistance to relative rotation of the ring and the stent.
66 Citations
10 Claims
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1. A heart valve prosthesis comprising a stent, obturator means mounted in the stent, and a suture ring which is fitted around the stent, wherein
the suture ring has a core with means which engage the stent and can hold the ring and the stent together axially whilst enabling the core of the ring to rotate relative to the stent, and a covering is applied to the core by directly stitching the covering to the core, at least part of said covering being intended to cooperate with the surface of the stent and to be in contact therewith, the degree of contact determining the resistance to relative rotation of the ring and the stent, and wherein the engagement means of the stent is left completely uncovered by the covering.
Specification