TWM522697U - Spinal internal fixation aimer - Google Patents

Description

Intraspinal fixed sight

This creation is about a design of an intra-vertebral fixed sight, especially as a spine-related surgery user.

According to the current medical practice in the internal fixation of the spine, it is usually taken from the midline of the back of the surgical patient and the superior ligament is cut, and the paraspinal muscles are then dissected from the periosteal distractor to the internal fixation. Nail the nails and fix them with the hooks to hook the muscles of the paravertebral muscles to the two sides, so that many tendons attached to the spine must be cut off, which causes the muscles and tendons around the spine to be destroyed, and the following are produced. Missing after surgery:

1. When the muscle is sutured by the operation, the paraspinal muscles and tendons can no longer be attached to the open position before the operation, which seriously damages the muscle tissue of the surgical patient.

2. The area of the dead space is too wide and is prone to post-operative epidural fibrosis, resulting in poor outcome after surgery.

3. Because of the operation of the patient's spinous ligament, vertebral spine and interspinous ligament are cut open, and the resulting vertebral column instability after surgery.

In order to solve the various defects in the practice of internal fixation of the spine, other people have developed minimally invasive surgery for intraspinal fixation with small wounds and less damage to muscle tissue. At present, there are two main methods for minimally invasive intraspinal fixation. One of them is internally fixed and implanted with percutaneous pedicle, and the other is made of open sleeve for visual fixation. All are missing as follows:

First, percutaneous pedicle for internal fixation:

1. The operation produces excessive light transmission during the operation, which may cause visual damage to both the surgeon and the surgical patient.

2. Most of the higher lumbar vertebrae or thoracolumbar fractures will cause degenerative lumbar spondylolisthesis or instability of the spine, so that the difficulty of the operation is high and not often used.

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

Second, the open sleeve for internal fixation:

1. Although the surgeon takes direct visual observation, the surrounding blood vessels are densely distributed and widely circulated, which makes the surgical patients easy to bleed during the operation, and the surgical wounds at the nails are deep, resulting in the surgeon's The open vision is affected, which increases the difficulty of the operation.

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

3. The open sleeve used in the operation is mostly made of metal and cannot be penetrated. Light, so that the surgical light source during the operation is partially blocked.

The main purpose of this creation is to fix the curved guide rail on the operating table during use, and to adjust the arc-shaped sliding unit and the tool holder according to the needs of the surgical procedure, when the surgeon adjusts At the same time, the arc-shaped guide rail and the arc-shaped sliding unit are matched, so that the tool fixing seat can be fixed into the nail point of the surgical patient's spine at each moving angle, thereby achieving the effect of easy operation and accurate alignment.

In order to achieve the above object, the present invention is an intra-vertical fixed sight comprising: an arc-shaped guide rail; an arc-shaped sliding unit combined with the arc-shaped guide rail; and a tool holder provided on the arc-shaped sliding unit And the tool holder 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 an embodiment of the present invention, the arc-shaped sliding unit includes a body, a guiding portion corresponding to the end surface of the body, and a guiding portion respectively disposed on each guiding portion and coupled with the arc-shaped guide rail. perforation.

In an embodiment of the present invention, the tool fixing base includes a tool placing portion, a sliding sleeve respectively disposed on two sides of the tool placing portion and respectively coupled with the guiding portions, and internal threads respectively connecting the sliding sleeves And a screw joint that respectively couples the internal thread portions.

In an embodiment of the present invention, the arc type guide rail, the arc type sliding unit and the tool fixing seat are made of a light transmissive material.

1‧‧‧arc guide

11‧‧‧Fixed rod

2‧‧‧Arc type sliding unit

21‧‧‧ body

22‧‧‧ Guidance Department

23‧‧‧Perforation

3‧‧‧Tool holder

31‧‧‧Tools placement department

32‧‧‧Sleeve

33‧‧‧Threaded Department

34‧‧‧ Screws

The first picture is a three-dimensional appearance of the creation.

The second picture is a three-dimensional exploded view of the creation.

The third picture is a schematic diagram of the state of use of this creation.

Please refer to the "First, Second and Third Figures" for the three-dimensional appearance of the creation, the three-dimensional exploded view of the creation and the state of use of the creation. As shown in the figure, the present invention relates to an intra-vertical fixed aiming device which is composed of at least an arc-shaped guide rail 1, an arc-shaped sliding unit 2 and a tool holder 3, and the arc-shaped guide rail 1 and the arc-shaped sliding unit 2 and the tool holder 3 is made of light transmissive material.

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

The arc-type sliding unit 2 is movably coupled to the arc-shaped guide rail 2, and the arc-shaped sliding unit 2 includes a body 21, a guiding portion 22 corresponding to the end surface of the corresponding body 21, and a guide portion 22, respectively. A through hole 23 on the lead portion 22 and movably coupled to the curved guide rail 1.

The tool holder 3 is disposed on the arc-shaped sliding unit 2 and can be fixed after being moved to a predetermined position. The tool holder 3 includes a tool placing portion 31 and is respectively disposed on the tool placing portion 31. The sliding sleeve 32 which is combined with each guiding portion 22 and the internal thread portion 3 of each sliding sleeve 32 respectively 3. A screw member 34 that is coupled to each of the internal thread portions 33, respectively. If so, the above technical features are combined into a new intravertebral fixed sight.

When the present invention is used, the curved guide rail 1 can be fixed on the operating table (not shown) by using the fixing rod 11, and the angle of the curved sliding unit 2 on the curved guide rail 1 can be adjusted according to the operation required. When the position is adjusted, the surgeon can directly apply force to the seat body 21 (or the guide portions 22) to move, and the guide portions 22 are moved through the through holes 23 to the curved guide rail 1. To adjust the left and right angles (the angle of movement can be 0 degrees to 45 degrees), and then adjust the position of the tool holder 3 on the arc type sliding unit 2 as needed, and when adjusting the position, the surgeon can be adjusted. Applying force directly to one of the screw members 34, so that the sliding sleeves 32 are respectively moved on the guiding portions 22 for adjusting the front and rear angles (the angle of movement can be 0 to 45 degrees), to be adjusted After the predetermined position, the screwing member 34 is screwed into the internal thread portion 33, so that one end of each screw member 34 abuts against each guiding portion 22 to form a fixed portion; 1 and the arc type sliding unit 2 is arranged to form a spherical surface, so the arc type sliding unit 2 or the tool holder 3 is moved At any angle, the tool placement portion 31 can be fixed in the spinal field of the surgical patient (which corresponds to the position of the center of the sphere), so that the surgeon can place the related instruments to be used in the tool. The inside of the discharge unit 31 is operated.

In addition, the arc-shaped guide rail 1, the arc-shaped sliding unit 2 and the tool holder 3 can be designed to transmit light, so that the surgical light can be avoided from being used. The shadow of the source, so that the surgeon can obtain a better field of vision during the operation, and when the patient is fixed in the spinal cord of the surgical instrument fixed surgery, the x-ray film can be directly photographed, except obvious Reduce the time the surgeon is exposed to the x-ray environment, and greatly improve the ease of use.

In summary, the artificial intra-vertebral fixed sight effectively improves the missing formula, and can be used to fix the curved guide rail on the operating table, and the arc-shaped sliding unit and the tool holder are required according to the surgical procedure. Appropriate angle adjustment, when the surgeon adjusts, through the cooperation of the arc-shaped guide rail and the arc-shaped sliding unit, the tool holder can be fixed to the nail point in the spinal cord of the surgical patient at each movement angle, thereby achieving easy The effect of operation and accurate alignment makes the creation more progressive, practical and meets the needs of the surgeon during the operation. It has the basic requirements for patent application and proposes a new application according to law.

However, the above description is only a preferred embodiment of the present invention. When the technical scope of the present invention is not limited thereto, the equivalent modification and implementation of the scope and the specification of the present invention should still be Within the scope of the patents approved for the future creation, this will be stated together.

1‧‧‧arc guide

2‧‧‧Arc type sliding unit

21‧‧‧ body

22‧‧‧ Guidance Department

23‧‧‧Perforation

3‧‧‧Tool holder

31‧‧‧Tools placement department

32‧‧‧Sleeve

33‧‧‧Threaded Department

34‧‧‧ Screws

Claims (5)

An intra-vertical fixed sight comprising: an arc-shaped guide rail; an arc-shaped sliding unit coupled to the arc-shaped guide rail; and a tool holder mounted on the arc-shaped sliding unit and movable to Fix it after booking the location. The intra-vertebral fixed sight according to claim 1, wherein one end of the curved guide is provided with a fixing rod. The intra-vertebral fixed sight according to claim 2, wherein the arc-shaped sliding unit comprises a body, a guiding portion respectively corresponding to an end surface of the seat body, and respectively disposed on each guiding portion. And the perforation combined with the arc-shaped guide rail activity. The intra-vertebral fixed sight of the third aspect of the invention, wherein the tool fixing base comprises a tool placing portion, a sliding sleeve respectively disposed on two sides of the tool placing portion and respectively combined with the guiding portions, The internal thread portions of the sliding sleeves and the screwing members respectively coupled to the internal thread portions are respectively connected. The intraocular fixation sight according to the fourth aspect of the invention, wherein the arc guide rail, the arc type sliding unit and the tool fixing seat are made of a light transmissive material.