Strut type bicuspid valve airbag closing plate obstruction body implanted through cardiac apex, and implantation method thereof

Abstract

The invention belongs to the human body heart repairing technology and medical instrument field, and discloses a strut type bicuspid valve airbag closing plate obstruction body implanted through the cardiac apex, and an implantation method thereof; an airbag is arranged in the airbag closing plate; before implantation, a strut, a support framework and the airbag are compressed in a puncture conduit, and implanted along with the puncture conduit; after implantation, the airbag closing plate is inflated by air or fluid through an infusion tube, and is expanded to take position between two leaves of the heart bicuspid valve, thus obstructing a bicuspid valve countercurrent flow channel formed by pathology, and curing the bicuspid valve countercurrent flow; the airbag closing plate obstruction body is simple in structure, strong in reliability, very low in residual countercurrent flow incidence rate, and the implantation method has less wound on human body; the airbag closing plate obstruction body can treat functional bicuspid valve incomplete closure diseases, and the functional bicuspid valve countercurrent flow restoration success rate can be above 90%.

Description

technical field [0001] The invention belongs to the field of human heart repair technology and medical equipment, in particular to a device capable of repairing heart mitral valve regurgitation, specifically a support rod-type mitral valve airbag closure plate blocking body implanted through the apex of the heart and implanted method. Background technique [0002] Human heart and valves such as figure 1 As shown, the left ventricle 3 is located at the upper left of the apex 5, and the mitral valve 2 is located between the left atrium 1 and the left ventricle 3, and the mitral valve 2 controls the unidirectional flow of blood from the left atrium 1 into the left ventricle 3. A dysfunctional mitral valve 2 causes both leaflets of the mitral valve 2 to regurgitate, allowing blood to flow back from the left ventricle 3 back into the left atrium 1 during systole. Mitral regurgitation will cause pulmonary congestion and hypertrophy of the left ventricle3, eventually leading to h...

AI Technical Summary

Problems solved by technology

When the mitral valve 2 is closed, the state is as follows Figure 5 , Image 6 When shown, there is a gap between the front and rear leaflet junctions 2.6 of the mitral valve 2, and the gap between the front and back leaflet junctions 2.6 makes blood flow back to the left atrium 1 from the left ventricle 3 when the heart contracts (such as Figure 5 direction of regurgitation indicated by the arrow in ), this backflow is called mitral regurgitation, and mitral regurgitation can reduce heart efficiency and lead to heart failure

[0005] At present, the treatment methods for mitral valve regurgitation mainly include annuloplasty, mechanical mitral valve or biological mitral valve transplantation, etc., most of which require open chest and open heart, which cause great trauma to the human body and are not reliable. , leading to relapse of mitral regurgitation in 50% of cases within 5 years of treatment

The existing relatively advanced minimally invasive treatment method is to clamp the midpoints of the front and rear leaflet edges together by clamping the mitral valve to form two independent blood flow channels to reduce blood regurgitation, but this method has Residual reflux occurs

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