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Heart valve replacement device and method

A heart valve and helical technology, applied in heart valves, medical science, prostheses, etc., can solve problems such as sudden death of patients, rupture of the posterior wall of the heart, etc.

Active Publication Date: 2022-01-25
MITRAL VALVE TECHNOLOGIES SARL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Repeated contractions against the walls of the ventricles can also lead to rupture of the back wall of the heart and sudden death of the patient

Method used

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  • Heart valve replacement device and method
  • Heart valve replacement device and method
  • Heart valve replacement device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0087] Figure 14A and 14B Another exemplary embodiment of the present invention is shown that includes a helical anchor 12 that docks or secures a replacement stent-valve 60, and includes a sealant of biological tissue 90, such as pericardium tissue or other animal tissue, that is used in a buffer 80 position to cover the inner foam layer 82 , and to seal and cover the position of the existing fabric layer 92 on the open stent structure 86 to constrain the replacement heart valve 60 . The combination of the existing fabric layer 92 on the stent-valve 60 and the seal layer 90 constraining the underside or outflow portion of the valve 60 prevents leakage of blood flow past the valve 60 through the stent structure 86 . Instead, blood passes through the leaflets 62, 64 of the replacement valve 60 as it should. like Figure 14A As further shown in , the helical anchor 12 is preferably formed from spaced apart coils 22 that create a gap 91 as in any of the embodiments previously...

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PUM

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Abstract

The present application relates to heart valve replacement devices and methods, and provides a system and method for heart valve replacement. The expandable helical anchor is formed as a plurality of coils that support the valve prosthesis. At least one of the coils is expandable to a second, larger diameter upon application of force from within the anchor. A gap is defined between adjacent coils sufficient to prevent engagement of at least one of the adjacent coils with the native heart valve. An expandable heart valve prosthesis is provided and configured to be delivered into the anchor and expand into engagement within the coil. This progresses the coil from a first diameter to a second diameter while holding the anchor and prosthesis together. The system further includes a seal on the expandable heart valve prosthesis configured to engage the helical anchor and prevent blood past the heart valve prosthesis following implantation of the heart valve prosthesis in the helical anchor leakage.

Description

[0001] This application is a divisional application of Chinese patent application 201480056659.7 (PCT / US2014 / 051095) filed on August 14, 2014, entitled "Heart Valve Replacement Apparatus and Method". [0002] Cross References to Related Applications [0003] This application claims U.S. Provisional Application Serial No. 61 / 865,657 (pending) filed August 14, 2013, U.S. Provisional Application Serial No. 61 / 942,300 (pending) filed February 20, 2014 and filed February 21, 2014 Priority to US Provisional Application Serial No. 61 / 943,125 (pending), the disclosure of which is hereby incorporated by reference. technical field [0004] The present invention generally relates to medical procedures and devices related to heart valves such as replacement techniques and devices. More specifically, the present invention relates to the replacement of heart valves with various malformations and dysfunctions. Background technique [0005] Complications of the mitral valve, which control...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/24
CPCA61F2/2418A61F2230/0091A61F2250/006A61F2/2436A61F2/2409A61F2/243A61F2210/0076A61F2250/0063A61F2/2427A61F2/2412A61F2210/0014A61F2230/0069
Inventor P·A·思朋斯L·H·汤普金斯M·朝A·西格尔
Owner MITRAL VALVE TECHNOLOGIES SARL
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