VENOUS VALVE PROSTHESES
First Claim
1. A venous valve prosthesis comprising:
- a frame; and
a prosthetic valve coupled to the frame, the prosthetic valve including a closed configuration and an open configuration;
wherein the prosthetic valve in the closed configuration is configured such that with the venous valve prosthesis implanted in a vein an outer surface of the prosthetic valve is in contact with a wall of the vein around a circumference of the prosthetic valve to prevent blood from flowing past the prosthetic valve between the wall of the vein and the outer surface of the prosthetic valve, andwherein the prosthetic valve is configured to move to the open configuration such that at least a portion of an outer wall of the prosthetic valve partially collapses away from the wall of the vein in response to antegrade blood flow through the vein to enable blood flow between the outer surface of the prosthetic valve and the wall of the vein.
1 Assignment
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Accused Products
Abstract
A venous valve prosthesis includes a frame and a prosthetic valve coupled to the frame. With the venous valve prosthesis implanted in a vein, the prosthetic valve includes a closed configuration wherein an outer surface of the prosthetic valve is in contact with a wall of the vein around a circumference of the prosthetic valve to prevent blood from flowing past the prosthetic valve between the wall of the vein and the outer surface of the prosthetic valve. The prosthetic valve is configured to move to an open configuration such that at least a portion of an outer wall of the prosthetic valve partially collapses away from the wall of the vein in response to antegrade blood flow through the vein to enable blood flow between the outer surface of the prosthetic valve and the wall of the vein.
98 Citations
20 Claims
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1. A venous valve prosthesis comprising:
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a frame; and a prosthetic valve coupled to the frame, the prosthetic valve including a closed configuration and an open configuration; wherein the prosthetic valve in the closed configuration is configured such that with the venous valve prosthesis implanted in a vein an outer surface of the prosthetic valve is in contact with a wall of the vein around a circumference of the prosthetic valve to prevent blood from flowing past the prosthetic valve between the wall of the vein and the outer surface of the prosthetic valve, and wherein the prosthetic valve is configured to move to the open configuration such that at least a portion of an outer wall of the prosthetic valve partially collapses away from the wall of the vein in response to antegrade blood flow through the vein to enable blood flow between the outer surface of the prosthetic valve and the wall of the vein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13)
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10. The venous valve prosthesis of claim 10, wherein the prosthetic valve further includes a substantially cylindrical surface adjacent a larger end of the tapered surface, wherein the notches extend into the cylindrical surface.
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14. A method for treating venous valve insufficiency comprising the steps of:
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delivering a venous valve prosthesis to a site in a vein, wherein the venous valve prosthesis includes a frame and a prosthetic valve; deploying the venous valve prosthesis at the site in the vein, wherein the venous valve prosthesis includes a pre-set closed configuration and an open configuration, wherein in the pre-set closed configuration the prosthetic valve is in contact with a wall of the vein around a circumference of the prosthetic valve to prevent blood from flowing past the prosthetic valve between the wall of the vein and the outer surface of the prosthetic valve, and wherein the prosthetic valve is configured to move to the open configuration such that at least a portion of an outer wall of the prosthetic valve partially collapses away from the wall of the vein in response to antegrade blood flow through the vein to enable blood flow between the outer surface of the prosthetic valve and the wall of the vein. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification