Annulus fibrosus suturing device

Abstract

The invention discloses an annulus fibrosus suturing device. The annulus fibrosus suturing device comprises a rod part and a handle; a head assembly is arranged at the far end of the rod part, and the head assembly comprises a head cover, an ejecting piece and a pressing piece; and a suturing needle is completely hidden in the head cover through the cooperation of the head cover, the ejecting piece and the pressing piece, when the suturing needle needs to be exposed, the ejecting piece slides towards the far end along a sliding groove to push the suturing needle to rotate, and the near end of the suturing needle is exposed out of the head cover. According to the invention, a gun type structure is adopted, the handle is held by one hand, and the suture needle can be exposed when the handle is pressed; the puncture for the annulus fibrosus by the suture needle from inside to outside can be completed when the device is pulled back by one hand; the suture needle is hidden in the head cover, so that the a good protection effect can be achieved when the suture needle enters a spinal endoscope channel; and the annulus fibrosus suturing device is simple in operation, safe and reliable.

Description

technical field [0001] The invention relates to a medical device, in particular to a fibrous ring suturing device. Background technique [0002] Lumbar annulus fibrosus suture is an additional minimally invasive surgery after lumbar minimally invasive surgery. Suturing the fibrous annulus can prevent the re-protrusion of the internal nucleus pulposus, increase the healing rate of the fibrous annulus, and thereby reduce the long-term recurrence rate. Guarantee the long-term efficacy of minimally invasive lumbar surgery. The risk of lumbar annulus fibrosus is that the suturing process may cause damage to surrounding tissues, especially nerves and blood vessels. [0003] Those skilled in the art have done a lot of research on instruments for assisting annulus fibrosus suturing. For example, patent CN106063714B provides an annulus fibrosus suturing device for lumbar disc herniation after minimally invasive excision of the nucleus pulposus, including suturing needles and sutures...

AI Technical Summary

Problems solved by technology

[0004] (1) Since the sewing needle body is a guide wire and a guide sleeve, it is necessary to hold the guide wire with one hand and the guide sleeve with the other hand during operation. The endoscope is controlled by an assistant, and the same system is operated by two people. Inconvenient, not conducive to use under the endoscope;

[0005] (2) When the suture needle body is passed into the body through the long and narrow channel of the endoscope, the suture connecting device is sleeved on the clamping part and is exposed outside. Once it touches the inner wall of the endoscope channel, the suture connecting device will be removed from the The needle hook is detached, resulting in operation failure;

[0007] (4) The cooperation between the guide wire and the guide needle sleeve is controlled by both hands, and the two hands cooperate to operate, and the relative position is controlled by the operator, which increases the difficulty of operation;

[0008] (5) It is necessary to customize special-shaped sutures with needles including sutures and suture connecting devices, and to obtain corresponding medical use licenses. A single small batch of products obtains national licenses, resulting in waste of resources

[0009] Aiming at the above defects of the prior art, the aim is to provide an annulus fibrosus suture device, which can be operated with one hand, and does not have the defect that the needle is detached due to touching the inner wall of the endoscope channel, and is easy to operate, safe and reliable

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