A lumbar intervertebral disc fibrous ring suturing device

Abstract

The invention discloses a lumbar intervertebral disc fibrous ring suturing device, which comprises a stapler body which is composed of a holding mechanism, a sliding mechanism and a needle holding mechanism. The holding mechanism is connected with the sliding mechanism and controls the sliding and disassembly of the sliding mechanism. The front end of the sliding mechanism is provided with a needle holding mechanism and the needle holding mechanism is cooperated with the needle holding mechanism to finish the suturing. The holding mechanism comprises a front handle and a rear handle. The fronthandle is cross-hinged with the posterior handle through the gill screw. The sliding mechanism comprises a sliding rod and a fixing rod; The sliding rod is movably connected with the front handle through bolts; The fixing rod and the rear handle are integrated; The needle holding mechanism comprises a first-gauge needle holding claw and a second-gauge needle holding claw; The first needle holdingclaw is arranged at the front end of the sliding bar; The second needle holding claw is arranged at the front end of the fixing rod; The center of the first and second needle holding pawls is locatedon the same axis. The device can realize continuous suture without knotting, increase efficiency and save time, and can be widely applied to the suture of annulus fibrosus in lumbar intervertebral disc excision.

Description

technical field [0001] The invention relates to a suturing device, in particular to a fibrous ring suturing device of the lumbar intervertebral disc. Background technique [0002] Lumbar disc herniation is one of the common diseases of middle-aged and elderly people. The number of patients has been on the rise in recent years, and more and more patients undergo lumbar discectomy every year across the country. Although lumbar discectomy provides immediate and effective relief of sciatica and radiculopathy, over time, many patients relapse and require reoperation. For patients undergoing lumbar discectomy, the probability of postoperative recurrence and reoperation is 20%. [0003] Through the study of animal models using full-thickness annulus fibrosiotomy, it was found that there was fibrous tissue hyperplasia at the incision of the outer annulus fibrosus, which showed fibrous healing, while the inner annulus fibrosus showed no signs of healing. The healing characteristics...

AI Technical Summary

Problems solved by technology

And some annulus fibrosus suturing instruments and methods in the past have the following disadvantages: 1. The puncture instrument is thick, and new holes will be formed in the annulus fibrosus when suturing again, and larger holes will cause the exudation of the jelly-like nucleus pulposus, causing Inflammatory reaction, difficult to heal; 2. The operation process is inconvenient, and the suturing time is long; 3. All previous methods are knotted one stitch at a time, and the knotting takes a long time, especially in the minimally invasive channel, which wastes time longer

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