CN216136011U

CN216136011U - Percutaneous puncture thoracic vertebra pedicle of vertebral arch positioner

Info

Publication number: CN216136011U
Application number: CN202121797590.7U
Authority: CN
Inventors: 杨宇
Original assignee: Taizhou Enze Medical Center Group
Current assignee: Taizhou Enze Medical Center Group
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-03-29
Anticipated expiration: 2031-08-04

Abstract

The application relates to a percutaneous puncture thoracic vertebra pedicle positioning device, belonging to the field of orthopedic medical instrument auxiliary tools; the device comprises a positioning nail track, an upper extension block, a transverse bridge, a lower extension block and two clamping legs; the lower end face of the upper extension block extends downwards to be connected with the upper end face of the transverse bridge, the upper end face of the lower extension block extends upwards to be connected with the lower end face of the transverse bridge, and the left side end face and the right side end face of the transverse bridge are fixedly connected with the two clamping legs respectively. Due to the implementation of the technical scheme, the thoracolumbar vertebral pedicle puncture accuracy is effectively improved by arranging the positioning nail channels, an operator can conveniently master the puncture direction, the operation is simple, and the operation efficiency is improved; this application simple structure, convenient to use, low cost, operation personnel hold this application and puncture through the location nail way, and accurate location pedicle of vertebral arch position avoids the subjective deviation of operator when putting the nail, reduces the operation risk, reduces the activity duration, reduces human cost and time cost, provides a more high-efficient convenient change scheme for the operator carries out thoracolumbar vertebrae vertebral arch puncture operation, is suitable for extensive popularization and application.

Description

Percutaneous puncture thoracic vertebra pedicle of vertebral arch positioner

Technical Field

The application relates to a percutaneous puncture thoracic vertebra pedicle positioning device, belonging to the field of orthopedic medical instrument auxiliary tools.

Background

At present, partial thoracic vertebra fracture needs to carry out vertebroplasty treatment, through puncture location, confirms the position of pedicle of vertebral arch, puts into bone cement by the pedicle of vertebral arch again, fills the fracture centrum, for adapting to patient's individuation characteristic, operation often relies on doctor's operation experience to fix a position in the past, and doctor easily takes place subjective deviation when fixing a position pedicle of vertebral arch position, can't establish reasonable pedicle of vertebral arch passageway, leads to bone cement infiltration, and then influences the operation effect, increase operation risk, extension operation time.

Disclosure of Invention

The utility model aims to provide a percutaneous puncture thoracic vertebra pedicle positioning device capable of providing an optimal puncture angle.

The application is realized as follows: the percutaneous puncture thoracic vertebra pedicle positioning device comprises a positioning nail channel, an upper extension block, a transverse bridge, a lower extension block and two clamping legs; the lower end face of the upper extension block extends downwards to be connected with the upper end face of the transverse bridge, the upper end face of the lower extension block extends upwards to be connected with the lower end face of the transverse bridge, and the left side end face and the right side end face of the transverse bridge are fixedly connected with the two clamping legs respectively; the front end faces of the upper extension block, the lower extension block and the transverse bridge jointly form a flat positioning face, a transverse developing line and two vertical developing lines are arranged on the positioning face, and two positioning nail paths penetrating through the transverse bridge are arranged at the intersection of the developing lines.

Furthermore, the upper extending block, the transverse bridge, the lower extending block and the two clamping legs are made of polylactic acid materials.

Furthermore, the back surface of the lower extension block is a first cambered surface protruding backwards; the backward extending part of the back surface of the lower extension block is shallow and deep.

Furthermore, the back surface of the upper extension block is a second cambered surface which is recessed forwards.

Furthermore, the back surfaces of the upper extension block, the lower extension block and the transverse bridge form a back contact surface together, and the back contact surface is a smooth transition surface.

Furthermore, the left side end face and the right side end face of the transverse bridge are respectively connected with two clamping legs through hinged shafts, the inner faces of the clamping legs are cambered surfaces which are sunken outwards, the clamping legs are hinged with the transverse bridge, and pin holes capable of being positioned are formed in the hinged positions.

Due to the implementation of the technical scheme, the thoracolumbar vertebral pedicle puncture accuracy is effectively improved by arranging the positioning nail channels, an operator can conveniently master the puncture direction, the operation is simple, and the operation efficiency is improved; this application simple structure, convenient to use, low cost, operation personnel hold this application and puncture through the location nail way, and accurate location pedicle of vertebral arch position avoids the subjective deviation of operator when putting the nail, reduces the operation risk, reduces the activity duration, reduces human cost and time cost, provides a more high-efficient convenient change scheme for the operator carries out thoracolumbar vertebrae vertebral arch puncture operation, is suitable for extensive popularization and application.

Drawings

The specific structure of the utility model is given by the following figures and examples:

FIG. 1 is a front view of a percutaneous thoracic pedicle positioning device;

FIG. 2 is a side view of a percutaneous thoracic pedicle positioning device;

FIG. 3 is a top schematic view of FIG. 1;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 5 is a schematic bottom view of the preferred embodiment 3;

fig. 6 is a pin-hole fit schematic of the pin of example 3.

Legend: 1, pedicle of vertebral arch, 2, location nail way, 3, go up and prolong the piece, 4, lower extension piece, 5, horizontal bridge, 6, development line, 7, card leg, 8, articulated shaft, 9, first pinhole, 10, second pinhole, 11, first cambered surface, 12, second cambered surface, 13, centrum, 14, pin.

Detailed Description

The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.

Example 1: as shown in fig. 1 to 2, a percutaneous puncture thoracic vertebra pedicle positioning device comprises a positioning nail path 2, an upper extension block 3, a lower extension block 4, a transverse bridge 5 and two clamping legs 7, wherein the upper extension block 3, the lower extension block 4, the transverse bridge 5 and the two clamping legs 7 are made of polylactic acid materials and do not develop under the irradiation of X-ray; go up and extend 3 lower terminal surfaces downwardly extending of piece and be connected with 5 up ends of horizontal bridge, the 4 up ends of lower piece of downwardly extending upwards extend and are connected with 5 lower terminal surfaces of horizontal bridge, and two side end faces are respectively with two card legs 7 fixed connection about horizontal bridge 5. Last prolong piece 3, lower piece 4 that extends, 5 front ends of horizontal bridge constitute smooth locating surface jointly, there is one violently two vertical development lines 6 on the locating surface, 6 intersections of development line have two locating screw ways 2 that run through horizontal bridge 5, the directional pedicle of vertebral arch 1 of locating screw way 2, the operation personnel hold and puncture through locating screw way 2, pinpoint pedicle of vertebral arch 1's position, avoid the operator at the subjective deviation when putting the nail, reduce the operation risk, reduce the activity duration, reduce human cost and time cost, it provides a more high-efficient convenient scheme to carry out thoracolumbar vertebrae arch puncture operation for the operator.

Embodiment 2, as shown in fig. 4 to 6, the back of the lower extension block 4 is a first cambered surface 11 protruding backwards, the backward extending part of the back of the lower extension block 4 is shallow and deep, the back of the upper extension block 3 is a second cambered surface 12 recessed forwards, the back of the upper extension block 3, the back of the lower extension block 4 and the back of the transverse bridge 5 form a back contact surface together, the back contact surface is a smooth transition surface, and the smooth transition surface is fitted with the back anatomy to assist in accurately positioning the position of the pedicle 1. The 4 backs of the extension block extend backwards and the upper part of the extension part is shallow and deep to better fit the back of the human body, so that the positioning is accurate, the stability is improved, and the follow-up nailing operation is facilitated.

In embodiment 3, as shown in fig. 5 to 6, the left and right side end faces of the transverse bridge 5 are respectively connected with the two clamping legs 7 through the hinge shaft 8, the inner faces of the clamping legs 7 are arc faces recessed outwards and are attached to two sides of the back, the upper ends of the two clamping legs 7 are respectively hinged with the left and right side ends of the transverse bridge 5, and the clamping legs 7 can rotate to adjust the clamping span through the hinge shaft 8 according to the size of the back of a patient; a circle of first pin holes 9 are distributed outside hinge points on the left side and the right side of the transverse bridge 5, the tail ends of the clamping legs 7 are provided with corresponding second pin holes 10, and after the clamping legs 7 are adjusted to the optimal positions, pins 14 are inserted into the first pin holes 9 and the second pin holes 10 to be connected and positioned.

The foregoing description is by way of example only and is not intended as limiting the embodiments of the present invention. All obvious changes and modifications of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a percutaneous aspiration thoracic vertebra pedicle of vertebral arch positioner which characterized in that: comprises a positioning nail track, an upper extension block, a transverse bridge, a lower extension block and two clamping legs; the lower end face of the upper extension block extends downwards to be connected with the upper end face of the transverse bridge, the upper end face of the lower extension block extends upwards to be connected with the lower end face of the transverse bridge, and the left side end face and the right side end face of the transverse bridge are fixedly connected with the two clamping legs respectively; the front end faces of the upper extension block, the lower extension block and the transverse bridge jointly form a flat positioning face, a transverse developing line and two vertical developing lines are arranged on the positioning face, and two positioning nail paths penetrating through the transverse bridge are arranged at the intersection of the developing lines.

2. The percutaneous puncture thoracic pedicle positioning device of claim 1, wherein: the upper extending block, the transverse bridge, the lower extending block and the two clamping legs are made of polylactic acid materials.

3. The percutaneous puncture thoracic pedicle positioning device of claim 1 or 2, wherein: the back surface of the lower extension block is a first cambered surface protruding backwards; the backward extending part of the back surface of the lower extension block is shallow and deep.

4. The percutaneous puncture thoracic pedicle positioning device of claim 3, wherein: the back of the upper extension block is a second cambered surface which is sunken forwards.

5. The percutaneous puncture thoracic pedicle positioning device of claim 4, wherein: the back of the upper extension block, the lower extension block and the transverse bridge together form a back contact surface, and the back contact surface is a smooth transition surface.

6. The percutaneous puncture thoracic pedicle positioning device of claim 1 or 2, wherein: the left and right side end faces of the transverse bridge are respectively connected with two clamping legs through hinge shafts, the inner faces of the clamping legs are cambered surfaces which are sunken outwards, the clamping legs are hinged with the transverse bridge, and pin holes capable of being positioned are formed in the hinged positions.