Prosthetic tissue valve
First Claim
Patent Images
1. A valve for controlling fluid flow in a lumen having an annulus, the valve comprising:
- a sewing ring having an inner portion and an outer portion, wherein the sewing ring is substantially planar in an unstressed position, wherein, in the unstressed position, the outer portion of the sewing ring defines an operative circumference of the sewing ring, wherein the diameter of the sewing ring in the unstressed position is larger than the diameter of the annulus, and wherein the outer portion of the sewing ring is configured for attachment to the annulus in a biased position; and
a plurality of leaflets securely attached to the inner portion of the sewing ring, wherein, when the sewing ring is in the unstressed position, the plurality of leaflets are substantially co-planar with the sewing ring,wherein, upon attachment of the sewing ring to the annulus in the biased position, the sewing ring is substantially non-planar, the plurality of leaflets are substantially non-planar and at least a portion of at least one leaflet of the plurality of leaflets is superposed relative to at least a portion at least one of the adjacent leaflets of the plurality of leaflets, wherein a distal end of each leaflet extends radially inwardly relative to the inner portion of the sewing ring generally toward a center point on the valve, and wherein at least a portion of the leaflets of the plurality of leaflets comprises extracellular matrix material.
5 Assignments
0 Petitions
Accused Products
Abstract
A prosthetic tissue valve for aortic, pulmonary, mitral or tricuspid valve replacement is described herein. A sewing ring for use with the prosthetic tissue valve is also described. The valve can have a circumference that is a predetermined distance larger than the circumference of an annulus in a defective valve. The valve can be substantially planar in an unstressed position before attachment at the annulus and substantially non-planar upon attachment in a biased position at the annulus. Methods are provided for placing the valve as described herein in the biased position within the annulus of the defective valve.
175 Citations
21 Claims
-
1. A valve for controlling fluid flow in a lumen having an annulus, the valve comprising:
-
a sewing ring having an inner portion and an outer portion, wherein the sewing ring is substantially planar in an unstressed position, wherein, in the unstressed position, the outer portion of the sewing ring defines an operative circumference of the sewing ring, wherein the diameter of the sewing ring in the unstressed position is larger than the diameter of the annulus, and wherein the outer portion of the sewing ring is configured for attachment to the annulus in a biased position; and a plurality of leaflets securely attached to the inner portion of the sewing ring, wherein, when the sewing ring is in the unstressed position, the plurality of leaflets are substantially co-planar with the sewing ring, wherein, upon attachment of the sewing ring to the annulus in the biased position, the sewing ring is substantially non-planar, the plurality of leaflets are substantially non-planar and at least a portion of at least one leaflet of the plurality of leaflets is superposed relative to at least a portion at least one of the adjacent leaflets of the plurality of leaflets, wherein a distal end of each leaflet extends radially inwardly relative to the inner portion of the sewing ring generally toward a center point on the valve, and wherein at least a portion of the leaflets of the plurality of leaflets comprises extracellular matrix material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A valve for controlling fluid flow in a lumen having an annulus, the valve comprising:
-
a sewing ring having an inner portion and an outer portion, wherein the sewing ring is substantially planar in an unstressed position, wherein, in the unstressed position, the outer portion of the sewing ring defines an operative circumference of the sewing ring, wherein the diameter of the sewing ring in the unstressed position is larger than the diameter of the annulus, and wherein the outer portion of the sewing ring is configured for attachment to the annulus in a biased position; and a plurality of leaflets securely attached to the inner portion of the sewing ring, wherein, when the sewing ring is in the unstressed position, the plurality of leaflets are substantially coplanar with the sewing ring; and means for attaching the sewing ring to the annulus in the biased position, wherein, in the biased position, the sewing ring is substantially non-planar, the plurality of leaflets are substantially non-planar and at least a portion of at least one leaflet of the plurality of leaflets is superposed relative to at least a portion of at least one of the adjacent leaflets of the plurality of leaflets, and wherein, in the biased position, a distal end of each leaflet of the plurality of leaflets extends radially inwardly relative to the inner portion of the sewing ring generally toward a center point on the valve, and wherein at least a portion of the leaflets of the plurality of leaflets comprises extracellular matrix material.
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeCormatrix Cardiovascular, Inc.
-
Original AssigneeCormatrix Cardiovascular, Inc.
-
InventorsMatheny, Robert G.
-
Primary Examiner(s)Sweet, Thomas J
-
Assistant Examiner(s)Sharma, Yashita
-
Application NumberUS12/875,727Publication NumberTime in Patent Office732 DaysField of Search623/1.24, 623/900, 623/1.26, 623/2.1, 623 212- 219US Class Current623/2.19CPC Class CodesA61F 2/2412 with soft flexible valve me...
