CN202932995U

CN202932995U - Cervical vertebra body positioner

Info

Publication number: CN202932995U
Application number: CN 201220393520
Authority: CN
Inventors: 杜俊杰; 罗卓荆; 何其臻
Original assignee: Fourth Military Medical University FMMU
Current assignee: Fourth Military Medical University FMMU
Priority date: 2012-08-09
Filing date: 2012-08-09
Publication date: 2013-05-15
Anticipated expiration: 2022-08-09

Abstract

A cervical vertebra body positioner comprises a positioning needle and an installer matched with the positioning needle. The head portion of the positioning needle is of a cylindrical structure, and a needle head of the positioning needle is of a needle-shaped structure. Due to the fact that operation plane conforming is important operation in the cervical vertebra anterior approach operation, a traditional positioning method is that a syringe needle is inserted into the intervertebral disc to achieve positioning through X-ray perspective, the syringe needle inserted into the intervertebral disc hurts the intervertebral disc tissue, and the data show that the operation by means of the method possibly causes retrogression of the intervertebral disc or accelerates the retrogression of the intervertebral disc. The positioning portion is transferred to the vertebra body sclerotin position from the intervertebral disc tissue, and the cervical vertebra body positioner can achieve accurate positioning well and prevent the retrogression of the intervertebral disc.

Description

A kind of cervical vertebral body localizer

Technical field

This utility model relates to a kind of medical apparatus and instruments, is specifically related to a kind of cervical vertebral body localizer.

Background technology

In anterior cervical operation, definite operation plane is an important operation, traditional localization method is to insert intervertebral disc with injection needle to locate by X-ray examination, it is a kind of damage to disc tissue that syringe needle inserts in intervertebral disc, have data to show, this may cause the degeneration of intervertebral disc or accelerate its degeneration.

Summary of the invention

The purpose of this utility model is to provide a kind of position point that makes to be transformed into vertebral body sclerotin position from disc tissue, and good realization accurate location prevents again the cervical vertebral body localizer of intervertebral disc degeneration.

For achieving the above object, the technical solution adopted in the utility model is: comprise positioning needle and the erector that matches with positioning needle, the head of described positioning needle is cylindrical structural, and the syringe needle of positioning needle is acicular texture.

The long 10mm of the syringe needle of described positioning needle or 15mm, diameter are 1.5mm.

The diameter of the head of described positioning needle is 5mm, and offer the annular groove that the degree of depth is 1.5mm on head, erector adopts handle type spring spool structure, the mobilizable sleeve that comprises handle and be connected with handle, be provided with in handle inside the spring that is connected with mobilizable sleeve, be provided with the inside clamp that is connected as a single entity with handle in mobilizable sleeve, the end of inner clamp is provided with the chuck that adapts with annular groove.

The diameter of the head of described positioning needle is 5mm, offering diameter in head is that 3mm is with the groove of female thread, the outer wall of head is provided with symmetrical projection tuberosity, erector forms by following closely device on handle type and being sleeved on the sleeve of following closely outside device on handle type, on described handle type, the end of nail device offers the external screw thread that matches with the female thread of groove, and the sleeve lower end offers the symmetrical cutting that matches with the projection tuberosity.

This utility model makes position point be transformed into vertebral body sclerotin position from disc tissue, thereby realization that can be good has accurately prevented intervertebral disc degeneration in the location.

Description of drawings

Fig. 1 is the structural representation of this utility model embodiment 1, and wherein Fig. 1 a is the structural representation of positioning needle 1, and Fig. 1 b is the structural representation of erector 2;

Fig. 2 is the structural representation of this utility model embodiment 2, and wherein Fig. 2 a is the structural representation of positioning needle 1, and Fig. 2 b is the structural representation of erector 2, and Fig. 2 c is the structural representation of sleeve 14.

The specific embodiment

Below in conjunction with drawings and Examples, this utility model is described in further detail.

Embodiment 1, referring to Fig. 1, the present embodiment comprises positioning needle 1 and the erector 2 that matches with positioning needle 1, the head 3 of described positioning needle 1 is cylindrical structural, and the diameter of head 3 is 5mm, and offers the annular groove 5 that the degree of depth is 1.5mm on head 3, the syringe needle 4 of positioning needle 1 is acicular texture, two kinds of specifications of the long 10mm of syringe needle 4 or 15mm, diameter is 1.5mm, this design can prevent effectively that positioning needle is to the damage of patient's esophagus and trachea.Specification is the vertebra localization that the positioning needle of 15mm can also be used for other positions of spinal column.Erector 2 adopts handle type spring spool structure, comprise handle 6 and the mobilizable sleeve 7 that is connected with handle 6, be provided with in handle 6 inside the spring 8 that is connected with mobilizable sleeve 7, be provided with the inside clamp 9 that is connected as a single entity with handle in mobilizable sleeve 7, inner clamp 9 is accommodated in mobilizable sleeve 7 when flat, and the end of inner clamp 9 is provided with the chuck 10 that adapts with annular groove 5.

Its use procedure is as follows: when the mobilizable sleeve 7 of compression, the head of inner clamp 9 stretches out sleeve 7, and head opens 6mm, after clamping positioning needle 1 head annular groove 5, unclamp mobilizable sleeve 7, making erector 2 is that clamp device stable holding is lived positioning needle 1, positioning needle is inserted in cervical vertebral body the mobilizable sleeve 7 of recompression, the forceps binder, then carry out X-ray examination location in art, after complete the location, then pull out positioning needle with the clamp device.

embodiment 2, referring to Fig. 2, the present embodiment comprises positioning needle 1 and the erector 2 that matches with positioning needle 1, the head 3 of described positioning needle 1 is the cylindrical structural of 5mm for diameter, offering diameter in head 3 is that 3mm is with the groove 12 of female thread, the outer wall of head 3 is provided with symmetrical projection tuberosity 11, the syringe needle 4 of positioning needle 1 is acicular texture, the long 10mm of syringe needle 4 or the 15mm of positioning needle 1, diameter is 1.5mm, erector 2 forms by following closely device 13 on handle type and being sleeved on the sleeves 14 of following closely outside device 13 on handle type, on described handle type, the end of nail device 13 offers the external screw thread 15 that matches with the female thread of groove 12, sleeve 14 lower ends offer the symmetrical cutting 16 that matches with projection tuberosity 11.

During use, to be inserted in the sleeve 14 of upper nail device 13 head 3 of positioning needle 1, make the cutting 16 of sleeve 14 and projection tuberosity 11 tablings of needle section 3, prevent the rotation of positioning needle 1, upper nail device 13 is screwed in the positioning needle female thread, positioning needle 1 is inserted in the vertebral body of pre-determined bit, then upper nail device 13 and sleeve 14 are taken out in reverse rotation, carry out afterwards in art the X-ray examination location, after complete the location, then use nail device 13 and sleeve 14 is pulled out positioning needle 1.

Claims

1. cervical vertebral body localizer, it is characterized in that: comprise positioning needle (1) and the erector (2) that matches with positioning needle (1), the head (3) of described positioning needle (1) is cylindrical structural, and the syringe needle (4) of positioning needle (1) is acicular texture.

2. cervical vertebral body localizer according to claim 1, it is characterized in that: the long 10mm of syringe needle (4) or the 15mm of described positioning needle (1), diameter is 1.5mm.

3. cervical vertebral body localizer according to claim 1, it is characterized in that: the diameter of the head (3) of described positioning needle (1) is 5mm, and offer the annular groove that the degree of depth is 1.5mm (5) on head (3), erector (2) adopts handle type spring spool structure, comprise handle (6) and the mobilizable sleeve (7) that is connected with handle (6), be provided with in handle (6) inside the spring (8) that is connected with mobilizable sleeve (7), be provided with the inside clamp (9) that is connected as a single entity with handle in mobilizable sleeve (7), the end of inner clamp (9) is provided with the chuck (10) that adapts with annular groove (5).

4. cervical vertebral body localizer according to claim 1, it is characterized in that: the diameter of the head (3) of described positioning needle (1) is 5mm, offering diameter in head (3) is that 3mm is with the groove (12) of female thread, the outer wall of head (3) is provided with symmetrical projection tuberosity (11), erector (2) forms by following closely device (13) on handle type and being sleeved on the sleeve (14) of following closely on handle type outside device (13), the end of following closely device (13) on described handle type offers the external screw thread (15) that matches with the female thread of groove (12), sleeve (14) lower end offers the symmetrical cutting (16) that matches with projection tuberosity (11).