Multi-dimensional fixed heart valve prosthesis

Abstract

The invention relates to the field of medical instruments, in particular to a multi-dimensional fixed heart valve prosthesis which comprises a support and a valve, the support comprises a valve sewing section and an atrium section, the valve is fixedly connected to the valve sewing section, the valve sewing section is connected with the atrium section in a matched mode, a valve leaflet clamping piece is arranged on the valve sewing section, an anti-falling anchoring mechanism is arranged on the atrium section, after the heart valve prosthesis is released, the valve leaflet clamping piece is connected with a front heart valve leaflet of a patient in a matched mode, and the anti-falling anchoring mechanism penetrates through the atrium section and is fixedly connected with the back valve tissue of the patient. The physiologico-anatomical structure of the heart is used skillful, the valve leaflet clamping piece is arranged in the front valve area, and is used for fixing the front valve; a two-way anchoring device is arranged in the back valve area, so that the back valve area of the patient is fixed; the combination of the two enables the valve prosthesis to have multi-dimensional anchoring force, and the anchoring effect of the valve prosthesis in the heart is ensured.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a multi-dimensional fixed heart valve prosthesis. Background technique [0002] The anatomical structure of the mitral valve is complex, including leaflets, valve ring, chordae and papillary muscles, which play an important role in maintaining the function of the left and right ventricle respectively. Any disease that affects the structural integrity and normal function of the valve leaflets, valve ring, chordae, papillary muscle, and left ventricle may lead to severe mitral regurgitation (MR), which can cause left ventricular failure, pulmonary hypertension, and , atrial fibrillation, stroke and death. According to the latest epidemiological survey data of western developed countries such as the United States, mitral valve regurgitation is the most common type of valvular disease in the elderly population over 65 years old. At present, although there is no authoritative epidemio...

AI Technical Summary

Problems solved by technology

The defect of this technical solution is that: according to the physiological and anatomical structure of the mitral valve, the anterior valve area of ​​the mitral valve is close to the aortic area, so when performing acupuncture in the anterior valve area, the operation is very difficult, and it is easy to pierce the patient's aorta. The arterial valve area, and the blood vessel wall in the anterior valve area is very thin, and it is easy to be torn after the needle is inserted, resulting in the failure of the operation; Detachment will occur, resulting in failure of prosthetic fixation

This design scheme uses the first ventricular anchor and the second ventricular anchor to respectively fix the anterior valve leaflet and posterior valve leaflet in the patient's heart, and the technical defect of this scheme is that: according to the physiological and anatomical structure of the mitral valve , the length of the patient's posterior valve leaflet is very short, and its second ventricular anchor cannot effectively clamp and fix the posterior valve leaflet. Short, so it is very difficult to clamp and anchor, and it will consume a lot of operation time, and the prolongation of operation time is also extremely unfavorable to the postoperative recovery of patients, which may cause surgical complications

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