CN205286587U - Wire hook is worn in spinal nerve ligation operation - Google Patents

Abstract

The utility model discloses a wire hook is worn in spinal nerve ligation operation, it is main including the neck of hook, be fixed in two ligature spud piles of neck of hook upper end, be fixed in the semi -circular antecurvature of neck of hook lower extreme, and be fixed in two passivity crotches of semi -circular antecurvature front end, the ligature passes through the passivity crotch, along the ligature guiding groove, around the ligature spud pile to neck of hook upper end, when the semi -circle is antecurvature pass the ligature nerve after, relax the ligature on the spud pile, with tweezers from pressing from both sides the stylolite between two passivity crotches, it handles to do the ligature at last. The utility model discloses construct ingenious, little to tissue and nervous damage around the ligature nerve, avoided the spinal column neurotrosis that arouses the nervous excessive tractive of spinal column, for the rational painful model of neuropathy provides new operation instrument, overcome crucial difficult point in the spinal nerve ligation operation.

Description

A kind of Spinal nerve ligation operation threading hook for running stitch

Technical field

This utility model relates to a kind of neuropathic pain model (Spinal nerve ligation) and performs the operation threading hook for running stitch, it is specifically designed to auxiliary stitching thread ligation target spinal nerves, its application contributes to reducing the damage to target spinal nerves peripheral nerve and tissue, improve modeling success rate, overcome in the various model of neuropathic pain the key issue of most complex model Spinal nerve ligation.

Background technology

Spinal nerve ligation (spinalnerveligation, SNL) operation is closest to the neuropathic pain model of clinical lumbago and backache, the supervisor's lower limb pain perception of L5 spinal nerves, and L4 spinal nerves supervisor's lower extremity movement, and the L5 spinal nerves typically requiring ligation is sufficiently close to L4 spinal nerves, and these two spinal nerves are all located at rat or the deep layer of mice waist muscle, L4 spinal nerves is very easily damaged when ligation L5 spinal nerves (especially lift nerve carries out threading ligation), cause rat or the postoperative movement defect of mice and deformity, have a strong impact on follow-up pain and know that behavioristics is detected. therefore, at Spinal nerve ligation Post operation, as rat or the situation of mice operation rear flank limb movement defect and deformity occur, illustrate to be damaged to L4 spinal nerves, it is determined that modeling failure, it is necessary to reject this rat or mice.

Therefore; threading ligation L5 spinal nerves is the committed step in Spinal nerve ligation operation process; the invention of Spinal nerve ligation operation threading hook for running stitch; considerably reduce the tractive to L5 spinal nerves; protect the L4 spinal nerves closed on not come into the picture damage; also improve repeatability and the success rate of operation simultaneously, reduce epimere and hypomere nerve injury that tractive spinal nerves causes, reduce the damage to surrounding tissue. Spinal nerve ligation operation both at home and abroad at present does not have special threading hook for running stitch, what majority was likely to employing is people's sewing needle or tweezers, and rat or mice are broadly fallen into large-scale apparatus by these instruments, very easily damage spinal nerves surrounding tissue and nerve, or coup injury L4 spinal nerves, causes modeling failure. This threading hook for running stitch is specifically designed for Spinal nerve ligation operation designing, decrease surgical injury, improve modeling success rate and speed, reduce the interference of anthropic factor simultaneously, add this feasibility closest to clinical neurogenic pain model, be conducive to the popularization of neuropathic pain basic research.

Summary of the invention

The purpose of this utility model is the defect for existing Spinal nerve ligation operation threading hook for running stitch and deficiency, it is provided that one damages less, the more efficient and threading hook for running stitch of Spinal nerve ligation operation targetedly.

The purpose of this utility model is achieved through the following technical solutions: a kind of Spinal nerve ligation operation threading hook for running stitch, including the neck of hook, being fixed on two ligature spud piles of neck of hook upper end, the semicircle being fixed on neck of hook lower end is antecurvature, and is fixed on two passivity crotches of semicircle antecurvature front end; Gap is left between said two passivity crotch; Being provided with, on the back side of the described neck of hook and the antecurvature bottom surface of semicircle, the ligature guiding groove communicated, passivity crotch is led in ligature guiding groove one end, and the other end leads to ligature spud pile.

Further, the front end that described semicircle is antecurvature has fixing groove, and two passivity crotches are fixed in fixing groove.

The beneficial effects of the utility model are: construct ingenious, the damage of the perineural tissue of ligation and nerve is little, avoid the L4 spinal nerve injury that the excessive tractive to L5 spinal nerves causes, there is provided new operation tool for neuropathic pain model, overcome difficult point crucial in Spinal nerve ligation operation.

Accompanying drawing explanation

Fig. 1 and Fig. 2 is the structural representation of this utility model Spinal nerve ligation operation threading hook for running stitch;

Fig. 3 and 4 be ligature on threading hook for running stitch specifically around line mode schematic diagram;

In figure, the neck of hook 1, passivity crotch 2, semicircle antecurvature 3, ligature spud pile 4, ligature guiding groove 5.

Detailed description of the invention

As illustrated in fig. 1 and 2, a kind of Spinal nerve ligation operation threading hook for running stitch, it is characterised in that, including the neck of hook 1, it is fixed on two ligature spud piles 4 of the neck of hook 1 upper end, is fixed on the semicircle antecurvature 3 of the neck of hook 1 lower end, and is fixed on two passivity crotches 2 of semicircle antecurvature 3 front ends; Gap is left between said two passivity crotch 2; Being provided with, on the back side of the described neck of hook 1 and the bottom surface of semicircle antecurvature 3, the ligature guiding groove 5 communicated, passivity crotch 2 is led in ligature guiding groove 5 one end, and the other end leads to ligature spud pile 4. During use, by ligature by two passivity crotches 2, then respectively along ligature guiding groove 5, ligature spud pile 4 around the neck of hook 1 upper end, when behind semicircle antecurvature 3 and two passivity crotch 2 traverse ligation nerves, loosen the ligature on ligature spud pile 4, press from both sides out ligature with tweezers from the gap between two passivity crotches 2, finally do ligation and process. This utility model structure is ingenious, the damage of the perineural tissue of ligation and nerve is little, avoid the spinal nerves damage that the excessive tractive to spinal nerves causes, provide new operation tool for neuropathic pain model, overcome difficult point crucial in Spinal nerve ligation operation.

Can also offering fixing groove in the front end of semicircle antecurvature 3, two passivity crotches 2 are fixed in fixing groove, it is possible to avoid ligature to be pressed into bottom passivity crotch 2, the ligature between two passivity crotches 2 of more convenient taking-up.

Claims (2)

1. a Spinal nerve ligation operation threading hook for running stitch, it is characterized in that, including the neck of hook (1), it is fixed on two ligature spud piles (4) of the neck of hook (1) upper end, it is fixed on the semicircle antecurvature (3) of the neck of hook (1) lower end, and is fixed on two passivity crotches (2) of semicircle antecurvature (3) front end; Gap is left between said two passivity crotch (2); The bottom surface of the back side of the described neck of hook (1) and semicircle antecurvature (3) is provided with the ligature guiding groove (5) communicated, passivity crotch (2) is led in ligature guiding groove (5) one end, and the other end leads to ligature spud pile (4).

2. Spinal nerve ligation according to claim 1 operation threading hook for running stitch, it is characterised in that the front end that described semicircle is antecurvature (3) has fixing groove, and two passivity crotches (2) are fixed in fixing groove.