Thrombus management and structural compliance features for prosthetic heart valves

Abstract

A prosthetic heart valve can include: an outer support assembly; an inner valve assembly defining an annular space between the outer support assembly and the inner valve assembly; and a pocket closure defining the annular space to form The capsular bag in which thrombi can form and remain. Alternatively or additionally, the outer support assembly and the inner valve assembly can be coupled at the ventricular ends of the outer support assembly and the inner valve assembly, wherein the outer support assembly is in the central annulus portion than in the hoop at the ventricular end. The relatively more compliant aspect of compression allows the prosthetic valve to securely seat in the annulus while exerting minimal loading on the inner valve component that can degrade leaflet performance.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of U.S. Patent Application No. 14 / 155,535, filed January 15, 2014, and claims U.S. Provisional Application No. 61 / 839,237, filed June 25, 2013, and U.S. Provisional Application No. 61 / 839,237, filed June 25, 2013 Priority and benefit to U.S. Provisional Application No. 61 / 840,313 filed on 27 March. The disclosures of the aforementioned applications are incorporated herein by reference in their entirety. Background technique [0003] Prosthetic heart valves, including those used for insertion into atrioventricular valves (tricuspid and mitral), are prone to a variety of problems including, by way of example only, the following: Hinging of the valve within the native annulus and inadequate seal, pulmonary edema due to poor atrial drainage, paravalvular leak around installed prosthetic valve, lack of good fit of prosthetic valve within native annulus, erosion of atrial tissue, exc...

AI Technical Summary

Problems solved by technology

[0003] Prosthetic heart valves, including those used for insertion into atrioventricular valves (tricuspid and mitral), are prone to a variety of problems including, by way of example only, the following: Hinging of the valve within the native annulus and inadequate seal, pulmonary edema due to poor atrial drainage, paravalvular leak around installed prosthetic valve, lack of good fit of prosthetic valve within native annulus, erosion of atrial tissue, excessive wear of nitinol structures, mitral Posterior annulus interference with aorta, lack of customizability, and thrombosis

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