Prosthetic heart valve
First Claim
1. A prosthetic heart valve comprising a tubular membrane having an inlet end and an outlet end, the inlet end being adapted to be attached about the annulus of the heart, and a substantially seimcircular supporting structure attached to a semicircular section of the outlet end of said tubular membrane and adapted to be attached to the wall of the heart, whereby the remaining section of the tubular membrane at the outlet end remains free and is movable toward and away from the supported portion thereof to close or open the outlet end of the tubular membrane.
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Accused Products
Abstract
A prosthetic heart valve consists of a tubular membrane having a flexible generally circular inlet end adapted to be attached to the annulus of a heart with one side of the tube held to the heart cavity as by attachment to the papillary muscle while the other side of the tube is formed as an extended single flap adapted to move toward and away from the membrane on the attached side to provide a closed or open valve at the outlet end.
369 Citations
18 Claims
- 1. A prosthetic heart valve comprising a tubular membrane having an inlet end and an outlet end, the inlet end being adapted to be attached about the annulus of the heart, and a substantially seimcircular supporting structure attached to a semicircular section of the outlet end of said tubular membrane and adapted to be attached to the wall of the heart, whereby the remaining section of the tubular membrane at the outlet end remains free and is movable toward and away from the supported portion thereof to close or open the outlet end of the tubular membrane.
- 15. A prosthetic heart valve comprising a tubular membrane having an inlet end and an outlet end, the inlet end being adapted to be attached about the annulus of the heart, a supporting structure for said membrane comprising a sheet of flexible material having a length substantially equal to the length of said tubular membrane, and positioned within said tubular membrane, said sheet having a circumference at its upper end substantially equal to two thirds of the circumference of the tubular membrane and a circumference at its lower end substantially equal to one half of the circumference of said tubular membrane, and means attaching the inlet and outlet ends of said tubular membrane to the respective corresponding circumferences at the upper and lower ends of said supporting structure, whereby the unattached portion of the outlet end of said tubular membrane is movable toward and away from the attached portion thereof to close or open the outlet end of the tubular membrane.
Specification