Combined prosthetic aortic heart valve and vascular graft
First Claim
1. An implantable prosthetic device comprisinga prosthetic heart valve havinga rigid annulus,at least one leaflet mounted within said annulus, pivoting between open and closed positions, anda sewing ring surrounding said annulus, said sewing ring comprised of a stiffening ring and a fabric collar, anda tubular vascular graft having a proximal end and a distal end, the proximal end forming an abrupt inward taper configured to be between said annulus and said stiffening ring.
5 Assignments
0 Petitions
Accused Products
Abstract
A combined mechanical heart valve and vascular graft having a shortened transition area between the valve and the graft. The mechanical valve comprises a rigid circular annulus supporting internal leaflets. A stiffening ring surrounds the annulus and provides support for a sewing ring to attach the valve to the heart. The stiffening ring also captures a proximal end of the vascular graft between the stiffening ring and the annulus.
351 Citations
17 Claims
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1. An implantable prosthetic device comprising
a prosthetic heart valve having a rigid annulus, at least one leaflet mounted within said annulus, pivoting between open and closed positions, and a sewing ring surrounding said annulus, said sewing ring comprised of a stiffening ring and a fabric collar, and a tubular vascular graft having a proximal end and a distal end, the proximal end forming an abrupt inward taper configured to be between said annulus and said stiffening ring.
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6. An implantable prosthetic device comprising
a prosthetic heart valve having a rigid annulus, at least one leaflet mounted within said annulus, pivoting between open and closed positions, and a sewing ring surrounding said annulus, and a tubular vascular graft having a proximal end and a distal end, the proximal end forming an abrupt taper connecting said annulus and said sewing ring, said taper having an axial dimension of 4 mm or less.
Specification