Spine endoscopic adjustable shovelling and cutting type intervertebral disc and endplate excision device

Abstract

The invention discloses a spine endoscopic adjustable shovelling and cutting type intervertebral disc and endplate excision device, and belongs to the field of medical apparatuses. The spine endoscopic adjustable shovelling and cutting type intervertebral disc and endplate excision device comprises a connecting pipe, a handle arranged at one end of the connecting pipe, a first spherical sleeve arranged at the other end of the connecting pipe, a steering group arranged on the first spherical sleeve and a cutting group arranged on the steering group, wherein the cutting group comprises a connecting ball arranged in the second spherical sleeve, an electric cylinder arranged on the connecting ball and a shovelling and cutting knife arranged at the output end of the electric cylinder; and a shovelling and cutting edge is arranged at the front end of the shovelling and cutting knife. Through the adoption of the spine endoscopic adjustable shovelling and cutting type intervertebral disc and endplate excision device disclosed by the invention, the endoscopic intervertebral disc tissue excision efficiency is improved, shovelling and cutting of centrum endplate cartilage in endoscopic lumberinterbody fusion are realized, and the efficacy of polishing the centrum endplate and sharping bones is achieved, so that a bone grafting bed is more sufficiently exposed, and the efficiency and thesuccess rate of the lumber interbody bone grafting fusion are improved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an adjustable shovel-cut intervertebral disc and endplate resection device under a spinal endoscope. Background technique [0002] The intervertebral disc is located between the two vertebral bodies of the human spine. It is divided into the nucleus pulposus in the central part, which is a jelly-like substance rich in elasticity; the fibrous ring in the surrounding part is arranged in concentric circles by multi-layer fibrocartilage rings; the upper and lower ends of the intervertebral disc connect the vertebral body The cartilage endplate, with a thickness of about 0.5mm, divides the intervertebral disc tissue and vertebral cancellous bone, and protects the nucleus pulposus and intervertebral disc tissue from the upper and lower sides. The abundant collagen fibers make the annulus fibrosus slightly elastic, strong and thick. Degeneration, injury and congenital malformation can in...

AI Technical Summary

Problems solved by technology

However, since the diameter of the spinal endoscopic operation channel is only 7mm, and it is often implanted into the operation area at a certain angle with the intervertebral space, in addition, endoscopic discectomy instruments are mostly "gun-style" long-handled operating instruments, and endoscopic nucleus pulposus forceps Mainly, its grasping ability is limited, and most of them are "point-like" grasping. It is difficult to efficiently resect the tough fibrous annulus and the endplate attached to the vertebral bone surface, and it is also difficult to apply existing endoscopic instruments. It is necessary to grind the vertebral endplate, which will directly affect the performance of intervertebral discectomy and the exposure of the bone graft surface in endoscopic intervertebral fusion, which will directly affect the endoscopic intervertebral disc excision and intervertebral fusion Surgical Efficiency and Success Rate

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