Depth-limiting bone cutting device and bone cutting method thereof

Abstract

The invention relates to a depth-limiting bone cutting device and a bone cutting method thereof, and belongs to the field of medical instruments. The depth-limiting bone cutting device comprises a positioning needle, the positioning needle is in a straight circular rod shape, and the bottom of the positioning needle is pointed. The device comprises an expansion tube which is in a tube shape, and the positioning needle is matched with the interior of the expansion tube. The device comprises a sleeve, the sleeve is a thin-wall cylinder, and the inner diameter of the sleeve is matched with the outer diameter of the expansion tube. The device comprises a bone cutting tube in a circular tube shape, the bottom of the bone cutting tube is provided with annular sawteeth, the outer diameter of thebone cutting tube is matched with the inner diameter of the sleeve, and a connecting handle sleeves the upper portion of the bone cutting tube. A percutaneous endoscopic lumbar discectomy endoscope channel is quickly and safely built, operations on lesion intervertebral discs and osteophytes under percutaneous endoscopic lumbar discectomy are facilitated, articular process can be conveniently, quickly and safely cut during operations, and damage of nerve roots and spinal dura mater can be avoided and reduced during the operations.

Description

technical field [0001] The invention relates to a depth-limiting osteotomy and its cutting method, belonging to the field of medical instruments. Background technique [0002] The internationally advanced transforaminal endoscopic minimally invasive surgical technique overcomes the shortcomings of previous minimally invasive techniques and has become the best minimally invasive treatment for lumbar disc herniation. As a revolutionary innovative technology of minimally invasive spinal surgery, transforaminal endoscopy has incomparable technical advantages in the treatment of intervertebral disc herniation. Compared with various previous surgeries, the transforaminal endoscopic technology can see the anatomical structure more clearly under the magnified monitoring of the endoscope. The protruding intervertebral disc tissue is removed with the special surgical instruments of the transforaminal endoscope and the spinal canal stenosis is directly relieved. Nerve compression, but...

AI Technical Summary

Problems solved by technology

Compared with various previous surgeries, the transforaminal endoscopic technology can see the anatomical structure more clearly under the magnified monitoring of the endoscope. The protruding intervertebral disc tissue is removed with the special surgical instruments of the transforaminal endoscope and the spinal canal stenosis is directly relieved. Nerve compression, but if the facet osteotomy suddenly penetrates when exerting force, the instrument directly penetrates into the spinal canal and sympathetic fossa to damage the dura mater, spinal cord and nerve roots, which will damage the normal tissue of the patient and even endanger the patient's life. risk

At present, there is a lack of suitable tools for fast and safe cutting of the articular process in the supporting equipment

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