Transapical implantation of artificial chordae for repairing mitral valve regurgitation with minimally invasive surgical devices

Abstract

A minimally invasive surgical instrument for repairing mitral valve regurgitation by implanting artificial chordae through the apex, including sequentially connected clamps, catheters and flange joints, as well as opening and closing pull rods, locking push rods and puncture guide wires; the clamps are Round head clamps, including movable jaws, fixed jaws and fixed jaw base, the movable jaws are provided with curved guide holes for axial entry and radial exit, and the fixed jaws are provided with radial V-shaped through grooves; puncture The guide wire can pass through the flange joint, the catheter, the fixed jaw seat, the curved guide hole of the movable jaw, the radial V-shaped slot of the fixed jaw, and pass through the radial V-shaped slot of the fixed jaw ; The locking push rod sequentially passes through the flange joint, the conduit, and the fixed clamp seat to reach the radial V-shaped through groove of the fixed clamp. The device of the invention is small in size, compact in structure, simple in operation, greatly shortens operation time, improves operation efficiency and safety, has small operation trauma, is safe and convenient, and can achieve better operation effect.

Description

technical field [0001] The invention relates to a medical device, in particular to a minimally invasive surgical device for repairing mitral valve regurgitation by implanting an artificial chord through the apex of the heart. Background technique [0002] In the repair operation for the treatment of mitral valve regurgitation, the traditional surgery is traumatic and risky, especially for patients with end-stage heart failure and functional mitral valve regurgitation, it is difficult to tolerate surgery, so now it is clinically Minimally invasive procedures to repair mitral regurgitation are in great demand. Most of the existing applied and clinical minimally invasive mitral valve repair technologies exist abroad, and there is no domestic minimally invasive mitral valve repair technology with independent intellectual property rights. foreign technology System, MOBIUS system and DS1000 system are mainstream products, but they all have their own defects. The delivery syst...

AI Technical Summary

Problems solved by technology

The delivery system of the system has a long distance, needs to puncture the interatrial septum, and takes a long time to capture the mitral valve and is expensive. Although the MOBIUS system is transapical and has a short delivery system, the success rate is low. The negative pressure suction capture system may cause serious damage. blood loss

The DS1000 system also has certain defects due to its high price and other reasons.

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