Suture guard for prosthetic heart valve
First Claim
1. A heart valve prosthesis, comprising;
- an orifice housing having an exterior circumference and providing a lumen therethrough;
an occluder movable in the orifice housing between an open position allowing flow through the lumen and a closed position in which flow through the lumen is blocked;
a suture cuff extending around the exterior circumference and coupled to the orifice housing, the suture cuff adapted for receiving a suture therethrough for attaching the prosthesis to a heart tissue annulus, wherein the suture cuff provides a suture knot surface for carrying a suture knot thereon; and
a suture guard movably attached to the suture cuff and movable between an attached open position in which the suture knot surface is exposed and a closed position covering the suture knot surface and a suture knot carried on the suture knot surface.
1 Assignment
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Accused Products
Abstract
An artificial heart valve prosthesis for use in a heart includes an orifice defining a lumen therethrough for blood flow. An occluder is carried in the orifice and is movable between an open position which allows blood flow through the lumen and a closed position in which flow through the lumen is blocked. A suture cuff coupled to the orifice extends around an outer circumference of the orifice and is used for attaching the heart valve to a heart tissue annulus using sutures. The sutures are knotted proximate the suture cuff to secure the cuff to the annulus. A suture guard is coupled to the suture cuff and is movable between an open position in which the suture knot is exposed and a closed position in which the suture, suture knot and suture cuff are covered.
609 Citations
18 Claims
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1. A heart valve prosthesis, comprising;
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an orifice housing having an exterior circumference and providing a lumen therethrough; an occluder movable in the orifice housing between an open position allowing flow through the lumen and a closed position in which flow through the lumen is blocked; a suture cuff extending around the exterior circumference and coupled to the orifice housing, the suture cuff adapted for receiving a suture therethrough for attaching the prosthesis to a heart tissue annulus, wherein the suture cuff provides a suture knot surface for carrying a suture knot thereon; and a suture guard movably attached to the suture cuff and movable between an attached open position in which the suture knot surface is exposed and a closed position covering the suture knot surface and a suture knot carried on the suture knot surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification