CN204863478U - Backbone pedicle of vertebral arch body surface locator - Google Patents

Abstract

The utility model relates to a medical auxiliary device, which is a pedicle body surface locator of the spine. The locator has a rectangular frame structure, and the length of the locator is twice the width; the locator is composed of multiple horizontal metal wires and multiple longitudinal wires. The metal wire is connected, and the horizontal wire and the vertical wire divide the locator into a plurality of cells arranged in a matrix; the rectangular center of the locator is provided with a square metal sheet, and the locator is equally divided along its rectangular center. The first rectangular frame, the second rectangular frame, the third rectangular frame and the fourth rectangular frame, the rectangular center of the first rectangular frame is provided with an isosceles trapezoidal metal sheet, and the rectangular center of the second rectangular frame is provided with a circular metal sheet , the rectangular center of the third rectangular frame is provided with an equilateral triangle metal sheet, and the rectangular center of the fourth rectangular frame is provided with a semicircular metal sheet. The spinal pedicle body surface locator can obtain more accurate marks during initial positioning before operation, and shorten the preoperative positioning time.

Description

A spinal pedicle body surface locator

technical field

The utility model relates to medical auxiliary equipment, in particular to a spinal pedicle body surface locator.

Background technique

Spinal surgery such as posterior resection and internal fixation, vertebroplasty, and kyphoplasty for thoracolumbar fractures is very common in clinical practice. With the improvement of technology and the development of equipment, more and more posterior minimally invasive surgery is used in the clinical treatment of thoracolumbar fractures. Spinal surgery such as vertebroplasty and kyphoplasty usually requires C-arm machines, DSA is completed, so fast and accurate preoperative positioning is very important. At present, there is no general-purpose spinal pedicle body surface locator that can provide rapid and accurate preoperative positioning. Simple self-made locators such as Kirschner wires and paper clips are often used for positioning, and the accuracy of initial positioning is low. In order to obtain For more accurate body surface positioning, it is necessary to adjust the position of the locator several times. Therefore, there is an urgent need for a spinal pedicle surface locator, which can obtain more accurate marks during the initial preoperative positioning and shorten the preoperative positioning time.

Contents of the invention

In order to solve the above problems, the purpose of this utility model is to provide a spinal pedicle body surface locator, the spinal pedicle body surface locator can obtain more accurate marks during the initial positioning before operation, and shorten the preoperative positioning time. time.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A spinal pedicle body surface locator, the locator is a rectangular frame structure, the length of the locator is twice the width; the locator is composed of a plurality of transverse metal wires and a plurality of longitudinal metal wires connected, the transverse metal wire The locator is divided into a plurality of cells arranged in a matrix with the longitudinal metal wire; the rectangular center of the locator is provided with a square metal sheet, and the locator is equally divided into a first rectangular frame and a second rectangular frame along its rectangular center. Frame, the third rectangular frame and the fourth rectangular frame, the rectangular center of the first rectangular frame is provided with an isosceles trapezoidal metal sheet, the rectangular center of the second rectangular frame is provided with a circular metal sheet, and the rectangular center of the third rectangular frame An equilateral triangular metal sheet is arranged at the center of the fourth rectangular frame, and a semicircular metal sheet is arranged at the center of the rectangle of the fourth rectangular frame.

Preferably, the plurality of transverse metal wires are arranged in parallel, the transverse metal wire in the middle is a transverse central axis wire, and the diameter of the transverse central axis wire is larger than the transverse metal wires on both sides; the plurality of longitudinal metal wires are arranged in parallel longitudinally , the longitudinal metal wire in the middle is the longitudinal central axis wire, the diameter of the longitudinal central axis wire is larger than the longitudinal metal wires on both sides, and the square metal sheet is arranged on the junction of the transverse central axis wire and the longitudinal central axis wire.

Preferably, the locator has a length of 16 cm and a width of 8 cm.

Preferably, the cells are square cells with a side length of 2 cm.

The utility model adopts the above-mentioned technical scheme, and the spinal pedicle body surface locator can obtain more accurate marks during the initial positioning before operation, and shorten the preoperative positioning time. In spinal surgery such as posterior minimally invasive reduction and internal fixation for thoracolumbar fractures, vertebroplasty, and kyphoplasty, the initial positioning of the surgical vertebral body is performed through the anatomical landmarks on the human body surface, and then the adjacent two spines are determined. At the midpoint of the protrusion, the marking pen connects each point to form a line, place the device on the patient's body surface, place the square mark on the center point of the expected surgical vertebra, and perform X-ray machine fluoroscopy positioning, and determine the surface position of the spinal pedicle according to the mark. The process of use has the characteristics of obtaining accurate positioning at the first positioning, reducing the number of fluoroscopy times, and simple operation.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in further detail.

A spinal pedicle body surface locator as shown in Figure 1, the locator has a rectangular frame structure, the length of the locator is twice the width, the length of the locator is 16cm, and the width is 8cm. The locator is composed of a plurality of horizontal wires 1 and a plurality of vertical wires 2 connected. The horizontal wire 1 and the vertical wire 2 divide the locator into a plurality of cells a arranged in a matrix, and the cells are 2 cm long. Square cells.

The plurality of transverse metal wires 1 are arranged in parallel, and the transverse metal wire 1 in the middle is a transverse axis wire 11, and the diameter of the transverse axis wire 11 is larger than that of the transverse metal wires 1 on both sides; the plurality of longitudinal metal wires 2 are vertically parallel Setting, the longitudinal wire 2 in the middle is the longitudinal central axis wire 21, the diameter of the longitudinal central axis wire 21 is larger than the longitudinal metal wires 2 on both sides, and the junction of the transverse central axis wire 11 and the longitudinal central axis wire 21 is the positioner At the center of the rectangle, a square metal sheet 3 is provided at the center of the rectangle of the locator, and the locator is equally divided into a first rectangular frame, a second rectangular frame, a third rectangular frame and a fourth rectangular frame along its rectangular center, the first rectangular The rectangular center of the frame is provided with an isosceles trapezoidal metal sheet 4, the rectangular center of the second rectangular frame is provided with a circular metal sheet 5, the rectangular center of the third rectangular frame is provided with an equilateral triangle metal sheet 6, and the fourth rectangular A semicircular metal sheet 7 is provided at the rectangular center of the frame.

To sum up, the spinal pedicle body surface locator can obtain more accurate marks during the initial preoperative positioning, shortening the preoperative positioning time. In spinal surgery such as posterior minimally invasive reduction and internal fixation for thoracolumbar fractures, vertebroplasty, and kyphoplasty, the initial positioning of the surgical vertebral body is performed through the anatomical landmarks on the human body surface, and then the adjacent two spines are determined. At the midpoint of the protrusion, the marking pen connects each point to form a line, place the device on the patient's body surface, place the square mark on the center point of the expected surgical vertebra, and perform X-ray machine fluoroscopy positioning, and determine the surface position of the spinal pedicle according to the mark. The process of use has the characteristics of obtaining accurate positioning at the first positioning, reducing the number of fluoroscopy times, and simple operation.

Claims (4)

1. a vertebral arch pedicle of vertebral column body surface locator, is characterized in that: the rectangular frame structure of described localizer, and the length of localizer is the twice of width; Localizer is connected and composed by many portion transverse wire and Duo Gen longitudinal metallic wire, and localizer is divided into the cell of multiple rectangular arrangement by portion transverse wire and longitudinal metallic wire; The rectangular centre place of described localizer is provided with square-shaped metal sheet, localizer is divided into the first rectangle frame, the second rectangle frame, the 3rd rectangle frame and the 4th rectangle frame along its rectangular centre place, the rectangular centre place of the first rectangle frame is provided with isosceles trapezoid sheet metal, the rectangular centre place of the second rectangle frame is provided with circular metal plate, the rectangular centre place of the 3rd rectangle frame is provided with equilateral triangle sheet metal, and the rectangular centre place of the 4th rectangle frame is provided with half-round metal sheet.

2. a kind of vertebral arch pedicle of vertebral column body surface locator according to claim 1, is characterized in that: described many portion transverse wire be arranged in parallel, and the portion transverse wire mediated is axial filament in transverse direction, and laterally, the diameter of axial filament is greater than the portion transverse wire of its both sides; The parallel longitudinal setting of described many longitudinal metallic wires, the longitudinal metallic wire mediated is longitudinal central axis silk, and the diameter of longitudinal central axis silk is greater than its both sides longitudinal metallic wire, and square-shaped metal sheet is arranged on the junction of axial filament and longitudinal central axis silk laterally.

3. a kind of vertebral arch pedicle of vertebral column body surface locator according to claim 1 and 2, is characterized in that: the length of described localizer is 16cm, and width is 8cm.

4. a kind of vertebral arch pedicle of vertebral column body surface locator according to claim 3, is characterized in that: described cell is the square shaped cells lattice of length of side 2cm.