Annulus fibrosus stapler for percutaneous minimally invasive intervertebral disc surgery under full endoscope

Abstract

The invention belongs to improvement of surgical instruments, and particularly relates to an intervertebral disc surgery fibrous ring stitching instrument used under an endoscope in the field of the spinal minimally invasive surgery. The intervertebral disc surgery fibrous ring stitching instrument mainly comprises an outer sheath (4), a needle (5) and a suture clamping bolt core (6) which are sequentially stacked in a sleeving manner from outside to inside; a suture supplying device is arranged in the front of the outer sheath (4); a barb (8) capable of accommodating sutures are arranged in the front of the needle (5); and the front end of the suture clamping bolt core (6) can slide in the front-back direction so as to clamp or release the sutures. Furthermore, the suture supplying device is a front supporting claw (7) for preventing the sutures from slipping and specifically comprises a threading hole (9) and suture fixing grooves (10); the left and the right of the threading hole (9) are symmetric to each other; and an included angle is formed between openings of the suture fixing grooves (10) and is 90 degrees preferably. By the intervertebral disc surgery fibrous ring stitching instrument, a suture to be knotted can be knotted on the outside of the endoscope, a suture knot is pushed to a suture position, and the problem that sutures are difficult to knot in a minimally invasive surgery is solved economically, simply and conveniently.

Description

technical field

[0001] The invention belongs to the improvement of the surgical instrument, in particular, it is applied to the annulus fibrosus suture of the intervertebral disc operation under the full endoscope in the field of minimally invasive spinal surgery. Background technique

[0002] The latest national health department statistics show that the number of patients with intervertebral disc herniation in my country has been on the rise for many years, and has expanded from middle-aged and elderly to young and middle-aged at an alarming rate year by year. The most common cause of the disease is that various parts of the intervertebral disc, such as the nucleus pulposus, annulus fibrosus, and cartilage plate, especially the nucleus pulposus, undergo degenerative changes to varying degrees. The rupture protrudes from the back or into the spinal canal, causing the adjacent nerve roots to be stimulated or compressed, resulting in a series of clinical symptoms such as pain...

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