A mechanical self-locking sternal stapler

Abstract

The embodiment of the present invention discloses a mechanical self-locking sternum stapler, which includes a left breast plate and a right breast plate, the left breast plate is connected to the right breast plate through a self-locking structure, and the outside of the left breast plate and the right breast plate are both provided with hooks for fixing the sternum , the self-locking structure includes a chute arranged on the left breast plate for the right breast plate to push in, first ratchet teeth are provided on both inner walls of the chute, and first stop ratchets are arranged on both outer walls of the right breast plate. The retracting ratchet matches the second anti-retracting ratchet of the locking connection, which can realize automatic locking and the secondary locking and reinforcement function after automatic locking, double insurance, safe and reliable; and when a second thoracotomy or patient healing is required to open When using the sternal stapler, you only need to simply rotate the cam to eliminate the self-locking effect, and then the sternal stapler can be quickly opened; the sternal stapler can be quickly fixed and the operation efficiency is improved; it is firmly locked, safe and reliable; it is easy to open and take out It is fast and will not cause secondary harm to the patient.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of orthopedic medical devices, in particular to a mechanical self-locking sternal stapler. Background technique [0002] Generally, after thoracotomy in cardiothoracic surgery, it is necessary to use a sternal stapler to close and fix the sternum so as to speed up the wound healing of the patient. [0003] However, the currently used sternal stapler has certain disadvantages: the common sternal stapler uses the long axis of the cam to stretch the tension of the sternal stapler for locking, and the position of the sternum can only be fixed after the cam is turned, which makes the operation complicated and time-consuming during the operation After the position is fixed, the kit that closes the sternum can be removed, which will also prolong the operation time of the patient; there is also the problem that the fixation is not firm. However, it will directly lead to the loosening of th...

AI Technical Summary

Problems solved by technology

[0004] For this reason, the embodiment of the present invention provides a mechanical self-locking sternal stapler, through automatic locking and the secondary locking and reinforcement function after automatic locking, it solves the complex operation process and unreliable fixation of the existing traditional sternal stapler , complex disassembly and easy to cause secondary injury to patients

Images