Prosthetic Mitral Valve Holder

Abstract

The invention provides an artificial mitral valve valve holder, comprising: a handle part, a core rod, a ratchet and a valve holding part; wherein, the valve holding part has a barrel-shaped cavity with an upper opening and a bottom having a through hole, The inner wall of the barrel-shaped cavity is provided with a ratchet groove and a chute to realize the connection with the core rod and the ratchet. The outer side of the valve-holding portion is provided with three wire-holding parts along the circumference of the barrel-shaped cavity. The valve angle is fixedly connected with the valve holder; the mutual cooperation between the handle part, the core rod and the ratchet realizes that when the handle part is rotated, the core rod rotates unidirectionally to drive the tightening line to tighten to tighten the valve angle. The artificial mitral valve valve holder can realize the radial fixation of the valve angle of the artificial mitral valve valve, so as to avoid the damage caused by the excessive deformation of the valve angle when the valve angle is retracted; The artificial mitral valve valve holder is a split type, which greatly reduces the production cost and the use cost.

Description

technical field [0001] The invention relates to an artificial mitral valve valve holder, which belongs to the technical field of medical instruments. Background technique [0002] Heart valve disease is currently one of the major types of heart disease, and valve disease can lead to major heart dysfunction and eventually require replacement of native heart valves with artificial heart valves. Heart valves are mainly divided into aortic valve, pulmonary valve, tricuspid valve and mitral valve. Among them, the mitral valve is also called the mitral valve, which is like a "one-way valve" between the left atrium and the left ventricle, ensuring blood circulation from the left atrium to the left ventricle and through a certain amount of blood flow. For most patients who need to replace the heart valve, the artificial heart valve is implanted in the body by surgical operation. [0003] The artificial mitral valve is made of biological tissue, metal frame, silica gel, polyester t...

AI Technical Summary

Problems solved by technology

Currently, the clinically used valve holders are generally designed to have a structure that can push and tighten the wire axially to retract the flap angle, or to fix the flap angle that is not retracted. This method will cause excessive deformation of the flap angle, and The way of axial tightening requires the mold to be integrally formed, which greatly increases the cost of producing the mold. At the same time, for different sizes of mitral valves, the overall replacement of the corresponding size of the valve holder is required, and the operation cost is too high.

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