CN215228316U

CN215228316U - Porous guider for assisting in placing screw guide pin for cervical dentate process fracture

Info

Publication number: CN215228316U
Application number: CN202120415929.6U
Authority: CN
Inventors: 辛欣; 刘新新; 方康
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-12-21
Anticipated expiration: 2031-02-25

Abstract

The utility model discloses a supplementary porous director that cervical vertebra cusp fracture screw guide pin was put into, including the pipe body, pipe body bottom surface is the plane, is provided with guide pin hole an along its length direction in the pipe body, and guide pin hole an is parallel with its bottom surface of pipe body, still is provided with the guide pin hole b that has the contained angle rather than the bottom surface in the pipe body, and the export of guide pin hole an and guide pin hole b is located the same terminal surface of pipe body. The utility model discloses a dentate process screw guide pin is put into and is provided the multiple orbit selection of biplane, the screw guide pin orbit of quick definite ideal in the supplementary art.

Description

Porous guider for assisting in placing screw guide pin for cervical dentate process fracture

Technical Field

The utility model belongs to the technical field of cervical vertebra fracture auxiliary screw fixing equipment, a porous director that supplementary cervical vertebra cusp fracture screw guide pin was put into is related to.

Background

Cervical dentate process fractures have been widely reported, and for type ii displaced fractures, feasible anterior screw fixation surgical treatment is suggested. Due to the anatomical characteristics of the dentate process and the three-dimensional space, multiple X-ray fluoroscopy is often needed for adjusting the trajectory of the screw guide pin during the operation, thereby prolonging the operation time and increasing the radiation exposure. In recent years, the development of digital navigation technology has led to an increase in the efficiency of screw insertion. Pisapia and Tian report the use of an O-arm and robotic assistance to place anterior dentate screws. Hashizume reports the use of endoscopic-assisted screw placement. However, these devices are expensive, complicated processes, require specialist technical reserves, and are currently not available in most hospitals. Wu reports that a single-hole catheter originally used for dentate process fracture is changed into a double-hole catheter so as to improve the placement efficiency of a guide needle. However, the device only provides single-plane single-hole guide pin track selection, and the three-dimensional space path requirement of the screw guide pin track is still difficult to be efficiently solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a supplementary porous director that cervical vertebra dentate process fracture screw guide pin was put into puts into under the first piece of not good condition of guide pin position of haplopore pipe income, provides multiple guide pin orbit selection fast through the director for the art person confirms fast that ideal guide pin orbit auxiliary screw puts into.

The utility model discloses the technical scheme who adopts is, a supplementary cervical vertebra cusp fracture screw guide pin puts into porous director, including the pipe body, pipe body bottom surface is the plane, is provided with guide pin hole an along its length direction in the pipe body, and guide pin hole an is parallel with its bottom surface of pipe body, still is provided with the guide pin hole b that has the contained angle rather than the bottom surface in the pipe body, and the export of guide pin hole an and guide pin hole b is located the same terminal surface of pipe body.

The utility model is also characterized in that,

the outlet of the guide pin hole b is positioned above the outlet of the guide pin hole a.

The included angle between the guide pin hole b and the bottom surface of the catheter body is 6-10 degrees.

Guide pin hole a is provided with threely, and guide pin hole b is provided with two, and three guide pin hole a export is located with one row, and two guide pin hole b exports are located with one row, and guide pin hole b exports and guide pin hole a export crisscross distribution from top to bottom.

The diameters of the guide pin hole a and the guide pin hole b are both 1-1.5 mm.

The utility model has the advantages that:

the utility model relates to a multi-hole guider for assisting the insertion of a screw guide pin for the dentate process fracture of the cervical vertebra, which has simple structure and convenient use; the problems that the ideal guide pin track cannot be quickly determined, multiple intraoperative perspectives are required, the radiation exposure of doctors and patients is increased, and the operation time is prolonged in the conventional dentate process fracture screw guide pin inserting process are solved; in the using process, a plurality of track selections are provided for the screw guide pin, so that an ideal screw guide pin track is quickly determined in the operation, and the operation time is shortened; is safe and reliable.

Drawings

FIG. 1 is a schematic structural view of a multi-hole guide for assisting insertion of a screw guide pin for cervical spondylotic process fracture according to the present invention;

FIG. 2 is a top view of the multi-hole guide for inserting the screw guide pin for assisting the dentate process fracture of cervical vertebra;

fig. 3 is a front view of the multi-hole guider for assisting the insertion of the screw guide pin for the dentate process fracture of the cervical vertebra.

In the figure, 1 is a catheter body, 2 is a guide pin hole a, 3 is a guide pin hole b.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model relates to a supplementary porous director that abrupt fracture screw guide pin of cervical vertebra was put into, as shown in fig. 1-2, including pipe body 1, the bottom surface is the plane under the pipe body 1, be provided with three guide pin hole a2 along its length direction in the pipe body 1, three guide pin hole a2 is parallel and be one row of distribution, guide pin hole a2 is parallel with its bottom surface of pipe body 1, still be provided with two guide pin hole b3 that have the contained angle rather than the bottom surface in the pipe body 1, two guide pin hole b3 are parallel and set up side by side, the export of guide pin hole b3 is located the top that guide pin hole a2 exported, guide pin hole a2 and guide pin hole b 3's export is located the same terminal surface of pipe body 1, three guide pin hole a2 exports are located the same row, two guide pin hole b3 exports are located the same row, guide pin hole b3 exports and guide pin hole a2 export crisscross distribution from top to bottom.

The included angle between the guide pin hole b3 and the bottom surface of the catheter body 1 is 6-10 degrees, and an operator can design the angle according to actual requirements.

The diameters of the guide pin hole a2 and the guide pin hole b3 are both 1-1.5 mm.

The utility model relates to a use of the porous director that supplementary cervical vertebra cusp fracture screw guide pin was put into specifically as follows:

the included angle between the guide pin hole b3 and the bottom surface of the catheter body 1 used in the process is 6 degrees and the diameter of the guide pin hole is 1 mm.

The patient is anesthetized through a nasal tracheal cannula, the mouth is opened by filling the bite block, and the head is fixed in a gentle extending position. And horizontally cutting the sternocleidomastoid muscle C4/5 on the right side for 2-3 cm. The subcutaneous tissue and the deep tissue separate along the medial edge of the carotid sheath to the anterolateral edge of the vertebral body. Under X-ray monitoring, a single-hole catheter is placed along the middle point of the long cervical muscles on both sides to reach 2/3 cervical vertebra anterior lower margin. The single-hole catheter is placed into the first guide pin for positive lateral perspective, if the guide pin is not in good position, 3 conditions can appear, and the multi-hole catheter is used for correction: 1. the lateral perspective guide pin has good position, and the right guide pin has poor position. According to the perspective in the operation, the first guide pin is inserted into the corresponding a2 hole of the guider, and the other holes a2 are used for placing the second guide pin, so that the poor correction is corrected. 2. The lateral position of the guide pin is not good, and the right position is good. The first guide pin is placed into the middle hole of the guide pin hole a2 by using the guide device, and then the side position is corrected by using the angle hole of the guide pin hole b 3. 3. The position of the guide pin at the positive side is not good, and the position of the guide pin at the positive side can be corrected by the method, and then the correction at the side is carried out.

Claims

1. The utility model provides a supplementary porous director that cervical vertebra dentate process fracture screw guide pin was put into, its characterized in that, includes pipe body (1), pipe body (1) bottom surface is the plane, be provided with guide pin hole a (2) along its length direction in pipe body (1), guide pin hole a (2) are parallel with its bottom surface of pipe body (1), still be provided with guide pin hole b (3) that have the contained angle rather than the bottom surface in pipe body (1), the export of guide pin hole a (2) and guide pin hole b (3) is located the same terminal surface of pipe body (1).

2. The multi-hole guide instrument for assisting the insertion of the screw guide pin for the dentate process fracture of cervical vertebra according to claim 1, wherein the outlet of the guide pin hole b (3) is located above the outlet of the guide pin hole a (2).

3. The multi-hole guider for assisting in inserting the screw guide pin for dentate process fracture of cervical vertebra according to claim 1, wherein the included angle between the guide pin hole b (3) and the bottom surface of the catheter body (1) is 6-10 °.

4. The multi-hole guide device for assisting the insertion of the screw guide pin for the dentate process fracture of the cervical vertebra according to claim 1, wherein there are three guide pin holes a (2), two guide pin holes b (3), three outlets of the guide pin holes a (2) are located in the same row, two outlets of the guide pin holes b (3) are located in the same row, and the outlets of the guide pin holes b (3) and the outlets of the guide pin holes a (2) are distributed in a vertically staggered manner.

5. The multi-hole guide device for assisting the insertion of the screw guide pin for the dentate process fracture of cervical vertebra according to claim 1, wherein the diameters of the guide pin hole a (2) and the guide pin hole b (3) are both 1-1.5 mm.