Percutaneous heart valve
First Claim
1. A bistable percutaneous heart valve, comprising:
- an elastic annular ring;
a body member having a plurality of legs, each leg connecting at one end to said annular ring;
at least two claws that are adjustable from a first position to a second position by application of external force so as to allow ingress of surrounding heart tissue into said claws in said second position, wherein upon removal of the external force the claws elastically revert to the first position so as to grip the heart tissue positioned within the claws, thereby holding said heart valve in place; and
at least one leaflet membrane connected to at least one of said annular ring, said body member and said legs, said at least one leaflet membrane having a first position for blocking blood flow therethrough and a second position for allowing blood flow therethrough.
1 Assignment
0 Petitions
Accused Products
Abstract
A percutaneously inserted bistable heart valve prosthesis is folded inside a catheter for transseptal delivery to the patient'"'"'s heart for implantation. The heart valve has an annular ring, a body member having a plurality of legs, each leg connecting at one end to the annular ring, claws that are adjustable from a first position to a second position by application of external force so as to allow ingress of surrounding heart tissue into the claws in the second position, and leaflet membranes connected to the annular ring, the body member and/or the legs, the leaflet membranes having a first position for blocking blood flow therethrough and a second position for allowing blood flow therethrough. The heart valve is designed such that upon removal of the external force the claws elastically revert to the first position so as to grip the heart tissue positioned within the claws, thereby holding the heart valve in place. The body member and claws may be integrated into a one-piece design. The heart valve may be used as a prosthesis for the mitral valve, aortic valve, pulmonary valve, or tricuspid valve by adapting the annular ring to fit in a respective mitral, aortic, pulmonary, or tricuspid valve opening of the heart.
515 Citations
15 Claims
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1. A bistable percutaneous heart valve, comprising:
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an elastic annular ring; a body member having a plurality of legs, each leg connecting at one end to said annular ring; at least two claws that are adjustable from a first position to a second position by application of external force so as to allow ingress of surrounding heart tissue into said claws in said second position, wherein upon removal of the external force the claws elastically revert to the first position so as to grip the heart tissue positioned within the claws, thereby holding said heart valve in place; and at least one leaflet membrane connected to at least one of said annular ring, said body member and said legs, said at least one leaflet membrane having a first position for blocking blood flow therethrough and a second position for allowing blood flow therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A bistable percutaneous heart valve, comprising:
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an expandable elastic annular ring; a body member having a plurality of legs, each leg connecting at one end to said annular ring; at least two claws that are adjustable to guide said heart valve to an implantation position; and at least one leaflet membrane connected to at least one of said annular ring, said body member and said legs, said at least one leaflet membrane having a first position for blocking blood flow therethrough and a second position for allowing blood flow therethrough, wherein said expandable annular ring expands to anchor said heart valve at said implantation position. - View Dependent Claims (15)
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Specification