Rod shearing instrument used in spinal surgical incision

Abstract

The invention relates to the technical field of medical instruments, and discloses a rod cutting instrument used in a spinal surgical incision, the rod cutting instrument comprises a seat body, a pushing mechanism, a fixed forceps knife, a movable forceps knife, a linkage mechanism and a driving mechanism, the seat body is in a 7-shaped bent shape, one end of the seat body is provided with a handle, the other end of the seat body is provided with a forceps arm, the fixed forceps knife and the movable forceps knife are arranged at the end of the forceps arm, and the linkage mechanism is connected with the linkage mechanism. A sliding groove is formed in the clamp arm, the pushing mechanism is located in the sliding groove, and the pushing mechanism is connected with the movable clamp knife; a linkage cavity is formed in the seat body, a driving groove is formed in the lower side of the driving cavity in a communicating mode, a guide sliding hole is formed in the upper side of the linkage cavity in a communicating mode, the linkage mechanism is located in the linkage cavity, the driving mechanism is located in the driving groove, and the linkage mechanism is connected between the driving mechanism and the pushing mechanism; the problems that in the scoliosis deformity correction operation process, due to limitation of a cutting tool, a fixing rod needs to be taken down for cutting, time and labor are wasted in the cutting process, and operation risks exist are solved.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to a scissors instrument used in spinal surgery incisions. Background technique [0002] Nowadays, scoliosis correction surgery mainly uses screw-rod system for fixation. In the correction of scoliosis, it is necessary to fix the fixed rod on the spine, and then gradually reset the scoliotic spine through the fixed rod. After the spine is reset, the fixed rod will grow a part, which needs to be cut off, but at this time The fixation rod has been fixed to the spine, and the strength and hardness of the fixation rod are relatively high. Today’s cutting tools are too large to directly cut off the fixation rod fixed on the spine. Currently, cutting the fixation rod can only maintain the spine in other ways. Then remove the fixing rod and cut it to a suitable length, then fix the fixing rod to the spine again, take off the fixing rod and fix it again, and generally use large ...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a scissors instrument for use in spinal surgery incisions, which has the advantages of saving time and effort, reducing risks, and cutting accurately, and solves the need to use cutting tools due to the limitations of scoliosis correction surgery. The fixing rod is removed for cutting, which leads to time-consuming and labor-intensive cutting process, as well as the risk of surgery

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