Adjustable shear-type intervertebral disc ectomy device under spine endoscope

Abstract

The invention discloses an adjustable shear-type intervertebral disc ectomy device under a spine endoscope, and belongs to the field of medical devices. The adjustable shear-type intervertebral disc ectomy device comprises a main pipe, a handle arranged at one end of the main pipe, a first universal sleeve arranged at the other end of the main pipe, a steering set arranged on the first universal sleeve, and a cutting set arranged on the steering set; and the cutting set comprises a connecting ball arranged in a second universal sleeve, a cutting shell arranged on the connecting ball, a drivingmotor arranged in the cutting shell, and a tool bit arranged at the front end of the cutting shell and connected with the output end of the driving motor. The shearing function on fibrous rings and nucleus pulposus tissue in the intervertebral disc is achieved, the efficiency of an intervertebral disc tissue ectomy operation under the endoscope is improved, and the success rate of the intervertebral disc tissue ectomy operation under the endoscope is increased.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an adjustable shearing type intervertebral disc resection device under the spinal endoscope. Background technique [0002] The intervertebral disc is located between the two vertebral bodies of the human spine, divided into the central nucleus pulposus and the elastic fibrous ring. The fibrous ring of the peripheral part is composed of multiple layers of fibrocartilage rings arranged obliquely in concentric circles, divided into outer, middle and inner layers, which are tightly and firmly attached between the scale rings of the two vertebral bodies, making the upper and lower vertebral bodies Connected to each other, it has the function of consolidating the nucleus pulposus and maintaining the stability of the intervertebral body. The thicker collagen fiber component makes the annulus fibrosus slightly elastic and strong and thick. Degeneration, injury and congenita...

AI Technical Summary

Problems solved by technology

However, due to the small diameter of the spinal endoscopic operation channel, it often forms an angle with the intervertebral space

Endoscopic discectomy instruments are mostly "gun-style" long-handled operating instruments, mainly endoscopic nucleus pulposus forceps, which have limited gripping ability, and most of them are "point-like" grasping. Efficient resection of the nucleus pulposus and annulus fibrosus tissue will directly affect the efficiency and effect of the resection of the nucleus pulposus tissue of the intervertebral disc, thus directly affecting the success rate of endoscopic discectomy

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