Heart valve sealing assemblies

Abstract

A hybrid heart valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The hybrid heart valve includes a substantially non-expandable, non-compressible prosthetic valve member having a peripheral sealing ring and an expandable stent frame projecting from an inflow end, thereby enabling attachment to the annulus without sutures. The stent frame may be plastically-expandable and may have a thin fabric layer covering its entirety as well as secondary sealing structures around its periphery to prevent paravalvular leaking. Other sealing solutions include interactive steps at the time of valve implant to establish seals around the stent and especially between the stent and the sealing ring of the valve member.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Patent Application No. 62 / 798901, filed January 30, 2019, the entire disclosure of which is incorporated by reference for all purposes. technical field [0003] The present disclosure generally relates to prosthetic valves for implantation in body passages. More specifically, the present disclosure relates to sealing solutions for hybrid surgical prosthetic heart valves configured to be surgically implanted in less time than current valves. Background technique [0004] Various surgical techniques can be used to repair diseased or damaged valves. In valve replacement surgery, the damaged leaflets are removed and the annulus is shaped to receive the replacement valve. Due to aortic stenosis and other heart valve diseases, thousands of patients undergo surgery each year in which the defective natural heart valve is replaced with a bioprosthetic or mechanical prosthetic valve....

AI Technical Summary

Problems solved by technology

[0008] Despite significant progress in improving outcomes of surgical heart valve replacements, blood leakage around implanted valves remains a major concern

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