Self-adaptive locating mitral valve closing plate blocking body for repairing mitral regurgitation

Abstract

The invention provides a self-adaptive locating mitral valve closing plate blocking body for repairing mitral regurgitation. The self-adaptive locating mitral valve closing plate blocking body for repairing the mitral regurgitation comprises a suture plastic ring which can be sutured on a mitral ring and a closing plate, the closing plate comprises a tongue-shaped plate and a supporting rod which is located at the top end of the tongue-shaped plate and connected with the suture plastic ring, and the closing plate can swing back and forth and can be connected to the suture plastic ring in a left-and-right twisting mode. The suture plastic ring is sutured on a valve ring of a mitral valve of a patient through a thoracotomy and an open heart surgery, a plastic function on the mitral ring which is diseased and swelled is performed, and the closing plate is supported. When a heart contracts and valve cusps are closed, the closing plate achieves self-adaptive locating of the position of the closing plate through swing and twisting of itself according to the position of regurgitation holes in the free edges of the valve cusps, the closing plate is made to be located at the position of the free edges when the two valve cusps are closed, the regurgitation holes are filled up, the closing plate is tightly attached to the free edges of the valve cusps , and the mitral regurgitation is lowered or avoided.

Description

technical field [0001] The invention belongs to a medical device, in particular to an self-adaptive positioning mitral valve closing plate blocking body for repairing mitral valve regurgitation. Background technique [0002] Human heart and valves such as figure 1 As shown, the mitral valve 2 is located between the left atrium 1 and the left ventricle 5, and controls the unidirectional flow of blood from the left atrium 1 into the left ventricle 5. A dysfunctional mitral valve 2 results in regurgitation of both leaflets, allowing blood to flow back from the left ventricle 5 back into the left atrium 1 during systole. Mitral regurgitation will cause pulmonary congestion and left ventricular hypertrophy, eventually leading to heart failure and death of the patient. [0003] The structure of mitral valve 2 is as follows figure 2 As shown, the mitral valve is a complex loaded structure consisting of annulus 2.1, anterior leaflet 2.2, posterior leaflet 2.3, chordae 2.4, papil...

AI Technical Summary

Problems solved by technology

[0005] At present, the treatment methods for the above-mentioned mitral regurgitation mainly include annuloplasty, repositioning of the papillary muscles, repair of the chordae and leaflets, etc. These treatment options rely on an understanding of the delicate balance between the leaflets , not very reliable, resulting in 50% of mitral regurgitation relapses within 5 years of treatment

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