Valve clamping device

Abstract

The invention discloses a valve clamping device. The valve clamping device comprises a first clamping component, a second clamping component and a fixing component. The fixing component is used for fixing the first clamping component and the second clamping component. The first clamping component comprises at least two first clamping arms. The second clamping component comprises a corresponding number of second clamping arms. A pair of clamps can be formed by each first clamping arm and the corresponding second clamping arm. The valve clamping device has the advantages that the valve clampingdevice can employ the smooth-transition top design, the high-clamping-stability clamping tooth design and the 'one-stripe-for-dualpurpose' fixing ring deign, so that damage to valves during movement of the clamping device is reduced, users capture the valves conveniently, and clamping performance is improved while damage to the valves is reduced; the overall structure of the clamping device has high machinability, and production and manufacture of factories are facilitated.

Description

technical field [0001] The invention relates to a valve clamp, in particular to a valve clamp for treating heart valve regurgitation. Background technique [0002] The mitral valve is a two-valve valve attached to the periphery of the left atrioventricular orifice (eg figure 1 As shown), it is connected to the papillary muscle by the chordae, which prevents the blood from the left ventricle from flowing back to the left atrium. [0003] Mitral regurgitation (MR) is due to the organic or functional changes in the mitral valve leaflets and their related structures, resulting in poor anastomosis of the anterior and posterior leaflets of the mitral valve, and blood flow back from the left ventricle to the left atrium, causing a series of pathological Physiological changes. Severe MR can cause left ventricular enlargement, and eventually lead to left ventricular systolic failure and heart failure. At the same time, left atrial pressure also increases due to reflux, which can ea...

AI Technical Summary

Problems solved by technology

However, it contains a complex control system, and the cost of manufacturing and production is also very high; the device needs to go through the vein, right atrium, atrial septum, and left atrium to reach the left ventricle during the operation, and the approach is long and has many bends. The surgical operation is very complicated. The doctor needs to repeatedly fine-tune the curvature, direction, horizontal position, and vertical depth of the delivery system, and the valve can only be clamped after reaching the ideal position. Therefore, it often takes a long time for the doctor to complete a single operation. This shortcoming deeply criticized

[0006] The patent CN106175986A developed by Zhongshan Hospital Affiliated to Fudan University and exclusively owned by our company discloses a valve clamp with a relatively simple device and method of use. Through actual production and performance testing results, it is found that the device still has the difficulty of capturing the valve, May cause valve damage, clamping force is difficult to improve and many other defects

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