Heart hole opener

Abstract

The invention discloses a heart hole opener which comprises a knife head, a knife rod and a knife rest, wherein the knife head is fixedly connected with the knife rod, and the knife rod can be used for accurately driving the knife head to move in the extension direction of the knife rest to finish the tissue cutting operation. Therefore, the problems of falling of the knife rod from the knife head and non-ideal shape of a tissue cutting surface easily caused by vibration during operation are effectively solved, the surgical cutting precision is improved, the operating process is simplified, and a relatively ideal expected effect is obtained.

Description

technical field [0001] The invention relates to the field of surgical instruments and therapeutic instruments, in particular to a heart hole opener. Background technique [0002] With the improvement of medical level, the implementation of heart surgery is more extensive and popular. Among them, artificial assisted heart therapy has the function of assisting the pumping function of the left ventricle of the heart, and is an important surgical machine that can maintain or restore the state of systemic circulation. During the operation of the artificial assisted heart, in order to install the artificial assisted heart, it is necessary to open a round hole at the apex of the heart. The diameter of the round hole matches the diameter of the artificial assisted heart entrance, so that the artificial assisted heart can be installed on the human heart . In the implementation process of the existing hole opener, since the blade of the cutter head and the cutter rod adopt detachable...

AI Technical Summary

Problems solved by technology

In the implementation process of the existing hole opener, since the blade of the cutter head and the cutter rod adopt detachable connection methods such as threads, the vibration of the cutter head and the cutter rod during the cutting process is likely to cause loosening of the cutter head and the cutter rod, and in severe cases, it may cause loose

At the same time, since the cutting edge of the existing gag mostly adopts a wavy cutting edge, the cutting surface and cutting depth of the cutting edge are not on the same plane, therefore, during the surgical cutting operation, multiple tissue cutting surfaces will be produced.

When the tissue to be cut is soft or uneven, the radius deviation of multiple wavy cutting edges will result in unclean resection, resulting in minced meat, and the ideal cutting shape cannot be obtained, which will eventually affect the subsequent surgical effect

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