Device and method for replacing mitral valve

a technology of mitral valve and valve body, which is applied in the field of prosthetic mitral valve, can solve the problems of heart valves being rendered less effective, serious cardiovascular damage or death, and surgery being prone to many complications, so as to prevent the movement of the mitral valve assembly and reduce the stress on the leaflets
US20090276040A1Inactive Publication Date: 2009-11-05EDWARDS LIFESCIENCES CORP
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
EDWARDS LIFESCIENCES CORP
Publication Date
2009-11-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

A prosthetic mitral valve assembly and method of inserting the same is disclosed. In certain disclosed embodiments, the prosthetic mitral valve assembly has a flared upper end and a tapered portion to fit the contours of the native mitral valve. The prosthetic mitral valve assembly can include a stent or outer support frame with a valve mounted therein, The assembly can be adapted to expand radially outwardly and into contact with the native tissue to create a pressure fit. One embodiment of a method includes positioning the mitral valve assembly below the annulus such that the annulus itself can restrict the assembly from moving in an upward direction towards the left atrium. The mitral valve assembly is also positioned so that the leaflets of the mitral valve hold the assembly to prevent downward movement of the assembly towards the left ventricle.
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Description

FIELD

[0001] The present disclosure concerns a prosthetic mitral heart valve and a method for implanting such a heart valve.BACKGROUND

[0002] Prosthetic cardiac valves have been used for many years to treat cardiac valvular disorders. The native heart valves (such as the aortic, pulmonary and mitral valves) serve critical functions in assuring the forward flow of an adequate supply of blood through the cardiovascular system. These heart valves can be rendered less effective by congenital, inflammatory or infectious conditions. Such damage to the valves can result in serious cardiovascular compromise or death. For many years the definitive treatment for such disorders was the surgical repair or replacement of the valve during open heart surgery, but such surgeries are prone to many complications. More recently a transvascular technique has been developed for introducing and implanting a prosthetic heart valve using a flexible catheter in a manner that is less invasive than open heart sur...

Claims

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