Valve repair clamp

Abstract

The invention relates to the technical field of medical instruments, and particularly relates to a valve repair clamp. The valve repair clamp comprises an inner clamp, an outer clamp and a clamping plate, wherein the inner clamp and the outer clamp can extend from a folding closed position to an inner clamp open state and an outer clamp open state, the clamping plate comprises a fixed arm and a movable arm, and the fixed arm is fixed to the inner clamp and moves along with the inner clamp; the outer clamp comprises a base and an outer clamp braided arm on the base; and the movable arm is further connected with a first control wire to control clamping of the movable arm and an outer plate of the inner clamp. According to the valve repair clamp, the overall weight of the clamp is reduced, the clamp is not prone to damage and loses functionality, damaged valve leaf tissue is successfully repaired through the special structure of the clamp, the physiological function of a valve is restored, the functional life of the valve is prolonged, the success rate of an operation and the convenience of the operation are improved, and damage to a patient is reduced.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a valve repair clip. Background technique [0002] Regurgitation is a common valvular disorder. Regurgitation is due to the inability of the valve leaflets to close completely, causing blood to flow back into the pumping chamber. Valve ring expansion, valve leaflet prolapse, and valve leaflet movement obstruction are the main causes of regurgitation. Many diseases, such as rheumatic heart disease , Endocarditis causes valvular lesions that impair valvular function. [0003] At present, there are mainly valve replacement techniques and valve repair techniques for valve leaflet treatment. Leaflet replacement technology uses artificial valves to replace existing diseased or abnormal heart valves. This kind of replacement operation often requires open chest operation, which causes great damage to the patient's body. Valve repair is a procedure in which a clip is deliv...

AI Technical Summary

Problems solved by technology

However, this repair method makes the operation more difficult, and it is difficult to control the amount of overlap of the clipping, and it is necessary to open a hole at the apex of the heart. The prior art, such as the patent document with application number 2018800181249, discloses a heart valve sealing device An exemplary implantable prosthetic device having an apposition element and at least one anchor, the apposition element configured to be positioned within a natural heart valve orifice to assist in filling the natural valve regurgitation space and to form a more effective Sealing, the opposition element may have a structure that is impermeable to blood and allows the natural leaflets to close around the opposition element during ventricular systole to prevent backflow of blood from the left or right ventricle into the left atrium or right atrium, respectively, the opposition element may The leaflets connected to the natural valve through anchors will cause additional damage to the patient's body and heart

However, the structure of the above-mentioned technical scheme is complicated, and the precision of processing and assembly is high, and the parts of the fixture are easily damaged during the high-frequency movement of the valve, and the fixture itself is likely to cause greater pressure on the valve.

Images