Trileaflet Semi-Lunar Prosthetic Tissue Valve
First Claim
Patent Images
1. A valve for controlling fluid flow in a lumen having an annulus comprising:
- a sewing ring having a circumference a defined distance greater than a circumference of the annulus,three leaflets equally disposed on the circumference of said sewing ring such that the leaflets overlap or contact both adjacent leaflets and extend radially to a center point in the valve,wherein the valve is planar before attachment and not planar upon attachment at the annulus.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention provides a trileaflet semi-lunar prosthetic tissue valve for aortic, pulmonary, mitral or tricuspid valve replacement. The valve is planar before attachment at an annulus of a valvular lumen, and non-planar upon attachment at the annulus of the defective valve. A sewing ring having a circumference greater than the annular circumference of annulus of the valve being replaced is also described and the sewing ring is placed at the approximate position of the annulus of the defective valve in a non-planar configuration.
30 Citations
20 Claims
-
1. A valve for controlling fluid flow in a lumen having an annulus comprising:
-
a sewing ring having a circumference a defined distance greater than a circumference of the annulus, three leaflets equally disposed on the circumference of said sewing ring such that the leaflets overlap or contact both adjacent leaflets and extend radially to a center point in the valve, wherein the valve is planar before attachment and not planar upon attachment at the annulus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A method of replacing a defective valve for controlling fluid flow in a lumen having an annulus, the method comprising:
providing a valve having two or more leaflets disposed on a circumference of the valve such that the leaflets overlap or contact any adjacent leaflets and extend radially to a center point in the valve, the leaflets attached to one another on the circumference, the circumference larger than a circumference of the annulus, wherein the valve is planar before attachment at the annulus, and attaching the valve at the annulus at non-planar attachment points on the annulus.
Specification