Annulus fibrosus fibrocartilaginis intervertebralis fissure suturing tool

Abstract

The invention provides an annulus fibrosus fibrocartilaginis intervertebralis fissure suturing tool, and belongs to the technical field of medical apparatuses. The fissure suturing tool comprises a hollow guide cylinder, a suturing needle penetrating into the guide cylinder, and a suturing thread. A penetrate-in opening and a penetrate-out opening are formed in the guide cylinder. The inner diameter of the penetrate-out opening is larger than the inner diameter of the penetrate-in opening. A guide structure is arranged at the outer end of the penetrate-out opening. The suturing needle penetrates through the guide cylinder back and forth, and the annulus fibrosus fissure close to the penetrate-out opening is sutured. According to the annulus fibrosus fibrocartilaginis intervertebralis fissure suturing tool, the guide cylinder can be rotated to suture the two sides of the fissure without moving at the annulus fibrosus fissure; the technical problems are solved that the annulus fibrosus fissure is difficult to suture, operation time is long and secondary herniation is easily caused in the prior art; the fissure suturing tool has the technical advantages that the annulus fibrosus fissure suturing operation is easy, suturing is smooth, operation time is short, the suturing effect is good, and practicability is high.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and more specifically relates to a suturing tool for cracks in the fibrous ring of the intervertebral disc. Background technique [0002] The intervertebral disc is located between two vertebral bodies and consists of three parts: the nucleus pulposus in the central part, the fibrous annulus in the surrounding part, and the cartilage endplate. Among them, the fibrous ring surrounds the nucleus pulposus, and the cartilage endplate is the upper and lower parts, which are respectively connected with the upper and lower vertebral bone tissues. The fibrous ring is closely arranged in layers and surrounds the nucleus pulposus. Due to various reasons such as degeneration, external impact, etc. As a result, the annulus fibrosus is loosened and ruptured, and the nucleus pulposus may protrude backward and compress the nerve, causing discomfort symptoms. [0003] With the development of the economy...

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