Central flow prosthetic cardiac valve
OwnerSimcha Miloinventor
Life of this patent
Estimating the term…
Abstract
A central flow prosthetic cardiac valve for disposition in the heart and the aorta for controlling the pulsatile flow of blood into and from the heart, having a plurality of valve flaps for positive opening and closing of the valve during pulsatile flow of the blood.
Claims13
A prosthetic cardiac valve adapted to be disposed in the aortic, mitral, or tricuspid rings, comprising:
- an annular valve support having an exterior portion adapted to be attached to the aortic, mitral, or tricuspid rings and an interior portion forming an opening;
- a plurality of adjacent valve flaps, each of said flaps being pivotally mounted to said annular valve support in circumferential disposition about said interior portion of said valve support to close said opening by engagement between said adjacent valve flaps and said valve support, wherein said valve flaps move from a closed position to an open position during positive pulsatile flow of blood through said opening in said interior portion of said valve support;
- each of said valve flaps has a contoured surface area of a substantially triangular configuration with a hinged portion at the base of said substantially triangular configuration and a narrow end at the apex of said substantially triangular configuration, said hinged portion being pivotally mounted with said interior portion of said valve support and said narrow end extending into said opening formed in said valve support such that said valve flaps adjacent to one another effectively close said opening when said flaps are in said closed position;
- and,
- each of said flaps includes a curved sealing surface formed adjacent said hinged portion of said flap cooperating with means on said valve support for sealably joining said flap to said valve support to allow pivotal movement of said flap with respect to said valve support while remaining in sealable engagement therebetween in the open or closed position.
In a prosthetic cardiac valve adapted to be disposed within the aortic, mitral, or tricuspid rings, having an annular valve support forming an opening and at least one valve flap pivotally disposed about the annular valve support to close said opening, the improvement residing in the valve flap which comprises:
- a generally flat body of a generally triangular configuration having a base pivotally mounted on the valve support at a hinged portion thereof and an end opposite said base and adapted to close the opening in the annular valve support when in the closed position and to pivot to open the same;
- and,
- a curved sealing surface formed adjacent said hinged portion of said flap body cooperating with means on said valve support for sealably joining said flap body with the valve support while the valve is in an open or a closed position.
Dependencies are inferred from the claim text.