Universal multi-angle probing curette for preventing residual nucleus pulposus under spinal endoscopy

Abstract

The invention discloses a universal multi-angle probing curette for preventing residual nucleus polposus under spinal endoscopy, and belongs to the field of surgical instruments. The probing curette comprises a fixed handle, a connecting block and a sheath rod, and further comprises a probing curette head and a flexion and extension mechanism; the probing curette head is hingedly arranged at one end of the sheath rod; the flexion and extension mechanism comprises a first drawing wire and a first movable handle, the first movable handle is hinged with the fixed handle, one end of the first drawing wire is connected to the first movable handle, and the other end of the first drawing wire passes through the connecting block and the sheath rod in sequence and is connected to the probing curette head; and the probing curette also comprises a universal adjusting mechanism. According to the present invention, the probing curette is provided with the flexion and extension mechanism, and the scraping of the nucleus pulposus can be completed by the action of tightening the first movable handle without scraping back and forth, so as to avoid inserting too deeply to damage normal tissue; and the probing curette is provided with the universal adjusting mechanism, the adjustment of scraping direction of the probing curette head by the action of tightening a second movable handle, and one-hand operation can be realized during the adjustment.

Description

technical field [0001] The invention relates to the field of surgical instruments, in particular to a universal multi-angle curette for preventing residual nucleus pulposus exploration under the spinal endoscope. Background technique [0002] Intervertebral disc herniation is due to the damage of the fibrous annulus of the intervertebral disc. The nucleus pulposus in the disc is loosened and dissociated under the stress of the disc, and protrudes through the fibrous annulus, compressing the nerve root and dural sac, resulting in nerve compression pain symptoms. Percutaneous spinal endoscopy The core of lower nucleus pulposus surgery is to remove the loose, free, prominent and degenerated nucleus pulposus. The existing grasping tool is the microscope nucleus pulposus forceps. The types of nucleus pulposus forceps are straight forceps and oblique forceps with a fixed angle. The nucleus pulposus forceps can only grasp the nucleus pulposus seen under the microscope, and the inst...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a universal and multi-angle anti-nucleus pulposus residual exploration curette under spinal endoscope, which can solve the problem that the nucleus pulposus forceps in the prior art are difficult to completely remove the free and loose nucleus pulposus during the process of grasping the nucleus pulposus. recurrent problem

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