Intervertebral disc annulus fibrosis suture device and method

Abstract

The invention discloses an intervertebral disc annulus fibrosis suture device, comprising a first outer needle and a second outer needle, wherein the first outer needle and the second outer needle arehollow, and holes are arranged on opposite side walls of the first outer needle and the second outer needle. The first outer needle is internally provided with a hose for driving the hose to protrudeout of the hole and bend into the hole of the second outer needle, and a wire guide frame arranged in the hose and connected with a suture at the end is used for driving the second driving mechanismof the wire guide frame to move along the inner wall of the hose. The second outer needle is internally provided with a thread tracing needle and a third driving mechanism, the thread tracing needle is provided with a clamping groove for clamping with the wire guide frame at a position corresponding to the missing hole, and the third driving mechanism is used for driving the thread tracing needleto move along the axial direction. The invention can conveniently and easily realize the suture of the rupture of the intervertebral disc fibrous annulus in the intervertebral foramen microscope, improve the operation convenience and reduce the demand for the operation space. A method for suture an annulus fibrosus of an intervertebral disc is also disclosed, that beneficial effect of which are described above.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an intervertebral disc annulus fibrosus suturing device. The invention also relates to a method for suturing the fibrous ring of the intervertebral disc. Background technique [0002] With the development of China's medical level, more and more medical devices are widely used. [0003] Intervertebral disc herniation is a common disease at present, and the number of patients is on the rise in recent years. 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. Protrude from the rupture to the rear or into the spinal canal, causing irritation or compression of adjacent nerve roots, resulting in a series of clinical symptoms such as pain, numbness, and pain. In addition, the intervertebral di...

AI Technical Summary

Problems solved by technology

[0005] At present, when suturing the fibrous annulus with a suture device, the incision is sutured by clamping the suture needle with a needle holder. Although this method is simple and easy, it is difficult in deep incisions or minimally invasive surgical incisions. operate

Since lumbar disc herniation is treated with transforaminal endoscopy, all surgical instruments must pass through a long and narrow working channel (i.e. intervertebral foramina, diameter 3-5mm, length 12cm), which makes the current technology unable The channel is sutured against the annulus fibrosus

[0006] In the prior art, the suture of the fibrous annulus generally adopts a suture method of one curved needle and one straight needle, because the end of the curved needle is bent and connected, causing the end of the curved needle to stick to the wall and enter the limiting annulus, and during the operation The looper is not allowed to rotate, resulting in difficulty in suturing in a narrow space and a high failure rate, especially under the endoscope, within the operating range of 3-5mm, it is completely impossible to achieve accurate suture of the fibrous annulus

At present, the most accepted surgical method for lumbar disc herniation is the use of transforaminal endoscopy, and this surgical method is likely to cause recurrence of the disease, among which the postoperative tear of the annulus fibrosus is an important cause of recurrence

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