Medical instrument for heart valve replacement

Abstract

The invention relates to a medical instrument for heart valve replacement, and belongs to the field of medical instruments, the medical instrument comprises an artificial heart valve and a valve holder, the artificial heart valve comprises an annular valve support and a plurality of valve angles arranged at intervals in the circumferential direction of the valve support, and biological tissue valve leaflets are arranged between the adjacent valve angles; a center ring is arranged between the valve angles, an inner hole of the center ring faces an inner hole of the valve support, and the distance between the center ring and each valve angle is the same. The valve holder comprises a top column, a center through hole penetrating through the top column along the axis of the top column is formed in the top column, an adjusting rod is slidably connected into the center through hole, the head end of the adjusting rod can extend out of the head end of the top column, and a clamping structure capable of being fixed to the center ring in a clamped mode is arranged at the head end of the adjusting rod. A valve holding disc used for being connected with a valve support of the artificial heart valve is arranged outside the top column. The method has the advantage that the probability of injury to the heart of a patient in the operation process is reduced.

Description

technical field [0001] The present application relates to the field of medical devices, in particular to a medical device for heart valve replacement. Background technique [0002] The heart is the most important organ of the human body. The heart is divided into two parts, the left and the right, and each part includes the atrium and the ventricle. The left and right atria and right and left ventricles are separated by the atrial and ventricular septum, respectively. There are four heart valves in the heart, namely the tricuspid valve, pulmonary valve, mitral valve and aortic valve. In the human blood circulation system, the four heart valves play a vital role. [0003] There are left and right coronary artery openings under the aortic valve. The structure of the four heart valves ensures that the valves open when the blood flows in the forward direction and close when the blood flows in the opposite direction, preventing the heart from increasing the burden caused by th...

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Problems solved by technology

[0007] In view of the above-mentioned related technologies, the inventor believes that by pushing the abutment outwards so that the valve angle is shrunk, for patients with a small heart, because the patient’s ventricle space is small, it is easy to hurt the patient when pushing the abutment. Harm to the heart, and it is not conducive to the doctor to operate

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