Multifunctional valve opening measuring device for valve annuloplasty

Abstract

The invention relates to the field of medical apparatus and instruments, and particularly discloses a multifunctional valve opening measuring device for valve annuloplasty, which comprises a diameter measuring cylinder for measuring the diameter of a valve opening, a clamping piece and a traction piece, the clamping piece is arranged at the lower end of the diameter measuring cylinder and can extend or contract along the radial direction of the diameter measuring cylinder; the inner end of the traction piece extends into the diameter measuring cylinder and is connected to the inner wall of the diameter measuring cylinder or the clamping piece, and the outer end of the traction piece extends out of the diameter measuring cylinder. The device not only can be used for measuring the caliber of the valve opening, but also is beneficial for preventing ring shrinkage operation from deviating from a preset valve opening area.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a multifunctional valve opening measuring device for annulus shrinkage. Background technique [0002] In vertebrates, the heart is a hollow muscular organ having four pumping chambers, the left atrium, right atrium, left ventricle, and right ventricle, each with a one-way valve; native The heart valves are identified as aortic, mitral, tricuspid, and pulmonary, and are each mounted in an annulus, which consists of a dense fibrous ring attached directly or indirectly to the atrial and ventricular muscle fibers, Each valve annulus defines a flow orifice; valvular heart disease is a common condition in which one or more of the heart valves do not function properly, the most common valve problems include valve insufficiency, regurgitation, prolapse, etc., where the valve does not close properly , requiring surgical repair. [0003] In the operation of valvuloplasty, the most commonly...

AI Technical Summary

Problems solved by technology

[0003] In the operation of valvuloplasty, the most commonly used forming method is the annular constriction of the valve annulus; here, mitral valve annulus is taken as an example. In the case of not using the forming ring, the method of posterior valve annulus constriction is generally used, that is, the sliding wire is used to After the horizontal mattress suture, the valve annulus needs to be placed in the valve annulus with the valve measuring device used to measure the diameter of the valve opening. After the valve area is determined, the valve measuring device is withdrawn, and the sutures are tightened according to the predetermined valve area. And tie a knot to fix it; but because the shrinkage process can only be controlled by the experience of the operator, a little carelessness can easily deviate from the predetermined valve orifice area, so that the ring shrinkage effect is not ideal, which is not conducive to the patient's safety. recover

Images