Compressible valve clamping device and clamping system thereof

Abstract

The invention discloses a compressible valve clamping device. The compressible valve clamping device comprises a base, a sliding block and at least two groups of clamping components, wherein a butt joint part is arranged on the near end side of the base; a center hole penetrating through the sliding block is formed in the center of the sliding block in the axial direction; and the sliding block comprises a first connecting part arranged at the far end, a second connecting part arranged at the near end and a middle part located between the first connecting part and the second connecting part. The first connecting part is connected with the butt joint part, the sliding block can move close to and away from the base in the axial direction of the sliding block; each clamping component group comprises a connecting arm, a first clamping arm and a second clamping arm; the far end of each connecting arm is movably connected with the base, and the near end of each connecting arm is movably connected with one end of the corresponding first clamping arm to form a first included angle; the other end of the first clamping arm is movably connected to the sliding block, one end of the second clamping arm is connected with the other end of the first clamping arm to form a second included angle, and a pull wire penetrates through the other end of the second clamping arm. The valve clamping device can be compressed, and the overall size of a clamping system is greatly reduced.

Description

technical field [0001] The invention relates to a valve clamp, in particular to a compressible valve clamp and its clamping system. 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 easi...

AI Technical Summary

Problems solved by technology

We developed and used this patent, and found through actual surgical operations that the device still has too much operating space to capture the valve, and it can only be operated through the ventricle side (the wound from the apex of the heart is still too large), and it is easy to wind the tendon Defects such as cables, easy to damage the roof of the atrium, and the clamp is made of rigid material that cannot be compressed and transported

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