Venous valve prostheses
First Claim
1. A venous valve prosthesis comprising:
- a frame defining a longitudinal axis; and
a prosthetic valve coupled to the frame and disposed about an exterior of the frame, the prosthetic valve having 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 perimeter 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 relative to the frame 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 and radially inward towards the longitudinal axis 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
0 Petitions
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.
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Citations
20 Claims
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1. A venous valve prosthesis comprising:
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a frame defining a longitudinal axis; and a prosthetic valve coupled to the frame and disposed about an exterior of the frame, the prosthetic valve having 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 perimeter 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 relative to the frame 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 and radially inward towards the longitudinal axis 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, 10, 11, 12, 13)
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14. A method for treating venous valve insufficiency, the method 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 defining a longitudinal axis and a prosthetic valve disposed about an exterior of the frame; 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 perimeter 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 relative to the frame 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 and radially inward towards the longitudinal axis 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