Stent for aortic heart valve
First Claim
1. A stent for mounting a trileaflet heart valve comprising an upper body portion and a lower skirt portion together defining a unitary, sculptured, open cylinder having inner and outer surfaces,said body portion comprising three circumferentially-spaced, axially-extending, apical commissure posts interconnected by valleys,said skirt portion comprising three depending arcuate extensions in registry with the valleys of said body portion,and a channel traversing the perimeter of said skirt adjacent the lower edge of said arcuate extension, said edge channel being interrupted by a plurality of spaced, axially-oriented reinforcing ribs traversing said channel.
4 Assignments
0 Petitions
Accused Products
Abstract
A plastic stent for a prosthetic trileaflet heart valve consisting of a cylindrical body portion terminating at one end in three apical, spaced commissure posts, and at the other end, in a skirt comprising three arcuate extensions, each extension being provided with an interrupted channel adjacent the outer edge thereof. An optional metal ring may be mounted over the skirt adjacent the body portion. A cloth cover is secured to the stent by stitching directly through the skirt in the area of reduced thickness resulting from the interrupted channel.
111 Citations
16 Claims
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1. A stent for mounting a trileaflet heart valve comprising an upper body portion and a lower skirt portion together defining a unitary, sculptured, open cylinder having inner and outer surfaces,
said body portion comprising three circumferentially-spaced, axially-extending, apical commissure posts interconnected by valleys, said skirt portion comprising three depending arcuate extensions in registry with the valleys of said body portion, and a channel traversing the perimeter of said skirt adjacent the lower edge of said arcuate extension, said edge channel being interrupted by a plurality of spaced, axially-oriented reinforcing ribs traversing said channel.
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4. A stent for mounting a trileaflet heart valve comprising a body portion and a skirt portion defining a unitary, sculptured, open cylinder having inner and outer surfaces,
said body portion comprising three circumferentially-spaced, axially-extending apical commissure posts interconnected by valleys, said skirt portion comprising three depending arcuate extensions in registry with the valleys of said body portion, the wall thickness of said skirt portion being less then that of said body portion, and the outer surface of said stent including a circumferential step at the juncture of said body and skirt portions corresponding to the difference in wall thickness, and an edge channel traversing the perimeter of said skirt adjacent the edge of said arcuate extensions.
Specification