Percutaneous valve prosthesis and system and method for implanting same

a technology of heart valve and prosthesis, which is applied in the field of heart valve prosthesis, can solve the problems of thromboembolic complications, catastrophic valve failure, and high risk of valve replacement surgery, and achieve the effect of minimizing the gradient across the valv
US20090306768A1Inactive Publication Date: 2009-12-10EDWARDS LIFESCI CARDIAQ
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
EDWARDS LIFESCI CARDIAQ
Publication Date
2009-12-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

A heart valve prosthesis includes a cylindrical valve cage stent constructed to be implanted percutaneously in the planar axis of a native valve annulus, an elastic and compressible, multi-leaflet valve insertable percutaneously into the body, and an attachment mechanism for attaching the valve to the superior rim of the valve cage stent. The valve can be of a bi-leaflet or a tri-leaflet type and includes a valve frame made from a memory metal and a tissue cover attached to the valve frame. The valve cage stent is self-expanding or balloon expandable, made respectively from memory metal or stainless steel but otherwise structurally the same.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The present patent application is based on, and claims priority from, U.S. provisional Application No. 60 / 833,791, filed Jul. 28, 2006, which is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates to heart valve prostheses, preferably to aortic valve prostheses. More specifically, the invention relates to heart valve prostheses that can be implanted percutaneously by means of a catheter from a remote Location without opening the chest cavity.

[0004] 2. Related Art

[0005] Heart valve surgery is used to repair or replace diseased heart valves. Valve surgery is an open-heart procedure conducted under general anesthesia. An incision is made through the patient's sternum (sternotomy), and the patient's heart is stopped while blood flow is rerouted through a heart-lung bypass machine.

[0006] Valve replacement may be indicated when there is a narrowing of the na...

Claims

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