CN106955151A - Fixed sighting device in vertebra - Google Patents

Abstract

The invention relates to a spine internal fixation sighting device, which comprises an arc-shaped guide rail; an arc-shaped sliding unit movably combined with the arc-shaped guide rail; and a tool fixing seat arranged on the arc-shaped sliding unit, wherein the tool fixing seat can be fixed after being moved to a preset position. Therefore, when the arc-shaped guide rail is used, the arc-shaped guide rail is fixed on an operating table, the arc-shaped sliding unit and the tool fixing seat are adjusted at proper angles according to the requirement of an operation process, and when the arc-shaped guide rail is used for adjustment by an operator, the tool fixing seat can be fixed with nail inserting points in the spine of an operation patient at each moving angle through the matching of the arc-shaped guide rail and the arc-shaped sliding unit, so that the effects of easy operation and accurate alignment are achieved.

Description

spinal fixation sight

technical field

The invention relates to an innovation of a spinal internal fixation sight, especially a spinal internal fixation sight that can be used for spinal related operations.

Background technique

Nowadays, when the medical field performs spinal internal fixation operations, it is usually collected from the midline of the patient's back and the supraspinous ligament is cut, and then the paraspinal muscles are removed to the internally fixed nails with a periosteum puller. point, and fix it by hooking the paraspinal muscles to both sides, so that many tendons attached to the spine must be cut off, and then the paravertebral muscles and tendons are destroyed, and the following postoperative symptoms occur: The missing:

1. After the muscle suturing is completed, the paravertebral muscles and tendons cannot be pasted back to the incision position before the operation, which seriously damages the muscle tissue of the surgical patient.

2. The area of dead space is too wide, which is easy to cause epidural fibrosis after surgery, resulting in poor results after surgery.

3. The supraspinous ligament, vertebral spine and interspinous ligament of the patient were incised, resulting in instability of the postoperative vertebral column.

In order to solve the deficiencies of traditional spinal internal fixation surgery, other related personnel have developed minimally invasive spinal internal fixation surgery with small wounds and less muscle tissue damage. Currently, there are two main methods of minimally invasive spinal internal fixation surgery , one is internal fixation and implantation with percutaneous pedicles, and the other is internal fixation with open sleeves in a visual state, but there are still defects as follows:

Percutaneous pedicle fixation:

The operation produces too much light transmission during the operation, which may cause visual damage to both the surgeon and the operation patient.

Most of them belong to higher lumbar or thoracolumbar fractures, which will cause degenerative lower lumbar spondylolisthesis or spinal instability, so that the operation is difficult and not commonly used.

The implants and surgical instruments used in this operation are specially designed to cooperate with percutaneous surgery, so the development cost of the surgical equipment used is too expensive.

Expandable sleeve for internal fixation:

Although the surgeon uses direct visual inspection, the blood vessels around the place where the internal fixation nail is inserted are densely distributed and widely circulated, which makes the patient prone to massive bleeding during the operation, and because the surgical wound at the place where the nail is inserted is deep, the surgeon may not be able to operate. The visual field is affected, which increases the difficulty of the operation.

The expandable sleeves, implants and surgical instruments used in this operation often collide with each other during the operation, which obviously hinders the smooth operation of the operation.

Most of the expansion sleeves used in this operation are made of metal and cannot transmit light, so that the light source of the operating light is partially blocked during the operation.

The beneficial effect of the present invention lies in that the spinal internal fixation collimator of the present invention effectively improves the defects of the prior art. When in use, the arc-shaped guide rail can be fixed on the operating table, and the arc-shaped sliding unit and the tool fixing seat can be adjusted according to the operation process. It is necessary to adjust the appropriate angle. When the surgeon uses it for adjustment, it is through the cooperation of the arc-shaped guide rail and the arc-shaped sliding unit, so that the tool holder can correspond to the internal fixation point of the patient's spine at each moving angle. Thus achieving the effect of easy operation and accurate alignment.

Contents of the invention

The main purpose of the present invention is to fix the arc-shaped guide rail on the operating table when in use, and make the arc-shaped sliding unit and the tool holder adjust the appropriate angle according to the needs of the operation process. When using the arc-shaped guide rail and the arc-shaped sliding unit, the tool holder can correspond to the internal fixation point of the patient's spine at all moving angles, thereby achieving the effect of easy operation and accurate alignment.

To achieve the above purpose, the present invention is a spinal internal fixation sight, which includes: an arc-shaped guide rail; an arc-shaped sliding unit movably combined with the arc-shaped guide rail; and a tool fixed on the arc-shaped sliding unit. seat, and the tool fixing seat can be fixed after moving to a predetermined position.

In an embodiment of the present invention, one end of the arc-shaped guide rail is provided with a fixing rod.

In one embodiment of the present invention, the arc-shaped sliding unit includes a base body, corresponding guide parts extending from the end face of the base body, and guide parts respectively arranged on each guide part and movably combined with the arc-shaped guide rails. perforation.

In one embodiment of the present invention, the tool fixing seat includes a tool placement part, sliding sleeves respectively arranged on both sides of the tool placement part and respectively combined with each guide part, and internal threads respectively communicating with each sliding sleeve. part, and the threaded parts respectively combined with each internal thread part.

In an embodiment of the present invention, the arc-shaped guide rail, the arc-shaped sliding unit, and the tool fixing seat are made of light-transmitting material.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional appearance of the present invention.

Fig. 2 is a three-dimensional exploded schematic view of the present invention.

Fig. 3 is a schematic diagram of the use state of the present invention.

【Symbol Description】

Arc rail 1

fixed pole 11

Arc sliding unit 2

Seat 21

Guide 22

piercing 23

tool holder 3

Tool placement part 31

Slider 32

Internal thread part 33

Screw connection 34.

detailed description

Please refer to "Fig. 1, 2 and Fig. 3", which are respectively the three-dimensional appearance schematic diagram of the present invention, the three-dimensional exploded schematic diagram of the present invention and the use state schematic diagram of the present invention. As shown in the figure: a spinal internal fixation sight of the present invention is at least composed of an arc-shaped guide rail 1, an arc-shaped sliding unit 2 and a tool holder 3, and the arc-shaped guide rail 1, arc-shaped sliding unit The unit 2 and the tool holder 3 are made of light-transmitting material.

One end of the arc-shaped guide rail 1 is provided with a fixed rod 11 .

The arc-shaped sliding unit 2 is movably combined with the arc-shaped guide rail 1, and the arc-shaped sliding unit 2 includes a seat body 21, a guide part 22 corresponding to extending from the end surface of the seat body 21, and a guide part 22 respectively arranged on each guide rail. The perforation 23 on the guide part 22 and movably combined with the arc-shaped guide rail 1.

The tool fixing seat 3 is arranged on the arc-shaped sliding unit 2 and can be fixed after moving to a predetermined position. The sliding sleeves 32 on the side and respectively combined with the guiding portions 22 , the internal threaded portions 33 respectively communicating with the sliding sleeves 32 , and the screw joints 34 respectively combined with the internal threaded portions 33 . If so, a brand-new spinal internal fixation sight is combined by means of the above-mentioned technical features.

When the present invention is in use, the arc-shaped guide rail 1 can be fixed on the operating table (not shown) by using the fixing rod 11, and the angle of the arc-shaped sliding unit 2 on the arc-shaped guide rail 1 can be adjusted according to the needs of the operation. When used for adjustment, the surgeon can directly apply force to the seat body 21 (or each guide part 22) to move, so that each guide part 22 can move on the arc-shaped guide rail 1 through the perforation 23 , to adjust the left and right angles (the angle of movement can be 0-45 degrees), and then adjust the position of the tool holder 3 on the arc-shaped sliding unit 2 according to the needs. When adjusting the position, the surgeon can Directly apply force to one of the screw joints 34, so as to make each sliding sleeve 32 move on each guide part 22 to adjust the front and rear angles (the moving angle can be 0 degrees to 45 degrees), to be adjusted After arriving at the predetermined position, apply force to screw each threaded piece 34 into the internal thread portion 33, so that one end of each threaded piece 34 respectively abuts against each guide portion 22 to form a fixation; After being set with the arc-shaped sliding unit 2, it forms a spherical surface, so no matter whether the arc-shaped sliding unit 2 or the tool fixing seat 3 moves to any angle, the tool placement part 31 can correspond to the spinal internal fixation entry point of the surgical patient (It is equivalent to the position of the center of the sphere), so that the surgeon can place the relevant instruments to be used in the operation in the tool placement part 31 for operation.

In addition, the arc-shaped guide rail 1, the arc-shaped sliding unit 2, and the tool holder 3 can be designed with light-transmitting materials, so that the shadow of the operating light source can be avoided during use, and the surgeon can obtain better results during the operation. The field of view, and when the surgical instrument is used to fix the internal fixation point of the patient's spine after adjustment, the X-ray film can be taken directly. In addition to significantly reducing the time the surgeon is exposed to the X-ray environment, it is more Greatly improve the convenience of operation.

To sum up, the spinal internal fixation collimator of the present invention effectively improves the deficiencies of the prior art. When in use, the arc-shaped guide rail can be fixed on the operating table, and the arc-shaped sliding unit and the tool fixing seat can be adjusted according to the needs of the operation process. And to adjust the appropriate angle, when the surgeon uses the adjustment, it is through the cooperation of the arc-shaped guide rail and the arc-shaped sliding unit, so that the tool fixing seat can correspond to the internal fixation point of the patient's spine at each moving angle, and then The effect of easy operation and accurate alignment makes the present invention more advanced, practical and meets the needs of surgeons during the operation.

However, the above description is only a preferred embodiment of the present invention, and should not limit the technical scope of the present invention. Therefore, all equivalent modifications and implementations made with reference to the claims of the present invention and the description should still belong to the present invention. The scope covered by the approved patent after the invention date is hereby stated together.

Claims (5)

1. fixed index in a kind of vertebra, it is characterised in that it includes：

One camber guide rail；

One camber sliding unit, is combined with the activity of camber guide rail；And

One tool fixing seat, on camber sliding unit, and can be fixed in being moved to behind precalculated position.

2. fixed index in vertebra as claimed in claim 1, it is characterised in that one end of the camber guide rail is provided with a fix bar.

3. fixed index in vertebra as claimed in claim 2, it is characterised in that the camber sliding unit includes a pedestal, the respectively corresponding guidance part extended from pedestal end face and the perforation for being respectively arranged on each guidance part and being combined with the activity of camber guide rail.

4. fixed index in vertebra as claimed in claim 3, characterized in that, the tool fixing seat includes a tool placement portion, the sliding sleeve for being respectively arranged on tool placement portion both sides and being combined respectively with each guidance part, is respectively communicated with the internal thread part and the spiro connecting piece respectively in connection with each internal thread part of each sliding sleeve.

5. fixed index in vertebra as claimed in claim 4, it is characterised in that the camber guide rail, camber sliding unit and tool fixing seat are the material of printing opacity.