Microscopic spine grinding head with depth limiting function

Abstract

The invention relates to an endoscopic spine grinding head with a depth limiting function, and belongs to the technical field of medical instruments. The under-microscope spine grinding head with the depth limiting function comprises a grinding head assembly and a depth limiting assembly. A spiral groove is formed in the outer side of the grinding head assembly; the depth limiting assembly is slidably and rotatably arranged on the grinding head assembly in a sleeving mode and comprises balls which are matched with the spiral grooves and can move in the radial direction, so that the depth limiting assembly has the fine adjustment state that the balls move along the spiral grooves and the speed adjustment state that the balls are disengaged from the spiral grooves. According to the under-microscope spine grinding head with the depth limiting function, the ball rolls in the spiral groove, the depth limiting assembly is slowly and finely adjusted in the axial direction of the grinding head assembly, the ball is made to be separated from the spiral groove, and therefore the depth limiting assembly can be drawn back and forth in the axial direction of the grinding head assembly, long-distance rapid adjustment is achieved, different requirements can be met, and the working efficiency is improved. The grinding depth is accurately controlled, the surgery is more accurate, the fatigue of doctors is reduced, operation can be achieved with one hand, and the operation mode is simple and convenient.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an endoscopic spinal grinding head with a depth-limiting function. Background technique [0002] Minimally invasive spine surgery has little damage to soft tissues, can greatly reduce postoperative pain, and shorten recovery time. It has developed rapidly in recent years. Minimally invasive spine surgery can be used for lumbar disc herniation, lumbar spondylolisthesis, lumbar segmental instability, cervical disc herniation, lumbar deformity and other symptoms. Microscopic spine grinding head is an essential surgical instrument for minimally invasive spine surgery. [0003] The spinal grinding head is inserted into the instrument channel of the intervertebral foramenoscope for surgery, and the nerves around the lesion tissue are dense, so the doctor must precisely control the spinal grinding head, especially the depth of the spinal grinding head must be strictl...

AI Technical Summary

Problems solved by technology

The doctor relies on his own handheld to control the depth of penetration, which is difficult to operate and has low precision. Moreover, the long-term operation consumes a lot of physical strength for the doctor, which is not conducive to precise control of the grinding depth.

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