CN211325692U

CN211325692U - Anterior cervical vertebra operation segment positioning needle

Info

Publication number: CN211325692U
Application number: CN201921777310.9U
Authority: CN
Inventors: 冯辉; 田耘
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-08-25
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a way operation festival section pilot pin before cervical vertebra, including syringe needle, insertion section, limit deep and linkage segment, the syringe needle setting at the tip of insertion section, the fixed setting in limit deep between insertion section and linkage segment. The positioning needle can limit the insertion depth of the positioning needle, and avoids the damage to the cervical spinal cord caused by the over-deep insertion of the positioning needle. In addition, as the peripheral wall of the insertion section is provided with a plurality of scales for marking the insertion depth, a doctor can clearly master the insertion depth in the insertion process. Because different scales have different lengths, widths, shapes or colors, the doctor can observe the scales conveniently.

Description

Anterior cervical vertebra operation segment positioning needle

Technical Field

The utility model relates to a medical tool field, concretely relates to anterior cervical spine operation festival section pilot pin.

Background

At present, in anterior cervical spine surgery, such as "anterior cervical disc removal decompression fusion (ACDF)" and "anterior cervical vertebral body subtotal resection (ACCF)", a positioning needle needs to be inserted into a vertebral body space (a position of a cervical disc) of a cervical vertebra, an operation segment is determined through X-ray machine fluoroscopy during the surgery, and since the positioning needle can be developed under the X-ray machine fluoroscopy, it can be determined whether the vertebral body space into which the positioning needle is inserted is a segment to be operated.

In the prior art, the technical problem of anterior cervical vertebra surgery is that no special positioning needle for the anterior cervical vertebra is provided, and a lumbar puncture needle is used instead. The lumbar puncture needle is easy to be inserted too deeply into the vertebral body space, and because of the unnecessary depth limiting device, the puncture needle inserted too deeply is easy to damage the cervical spinal cord behind the cervical intervertebral disc, thereby causing the nerve function of a patient to be damaged.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problem that exists among the prior art, the utility model provides a cervical vertebra way of escape operation festival section pilot pin, the technical problem that solve includes at least how to avoid the pilot pin because insert too deeply and injure the cervical spinal cord.

In order to solve the problem, the utility model provides a way operation festival section pilot pin before cervical vertebra, including syringe needle, insertion section, limit deep and linkage segment, the syringe needle setting at the tip of insertion section, the fixed setting in limit deep between insertion section and linkage segment.

Preferably, the anterior cervical segment positioning needle further comprises a handle portion, and the end of the connecting segment is fixedly connected to one end of the handle portion.

The end of the handle part is provided with a conical fixing part, and the end of the connecting section is fixedly connected to the conical top end of the conical fixing part.

The depth limiting part is a disc-shaped depth limiting device.

The depth limiting part is an L-shaped depth limiting device.

Further preferably, the peripheral wall of the insertion section is provided with a plurality of scales for marking the insertion depth, and meanwhile, the total length of the insertion section does not exceed 1 cm.

The scales are fixedly arranged on the peripheral wall of the insertion section through electroplating.

Preferably, the different scales have different lengths, widths, shapes or colors.

The utility model discloses realize following beneficial effect:

anterior cervical spine operation festival section pilot pin compare with prior art, can restrict the degree of depth that the pilot pin inserted, avoid the pilot pin because insert too deeply and damage the cervical spinal cord. In addition, as the peripheral wall of the insertion section is provided with a plurality of scales for marking the insertion depth, a doctor can clearly control the insertion depth in the insertion process. Because different scales have different lengths, widths, shapes or colors, the doctor can observe the scales conveniently.

Drawings

Fig. 1 is a schematic structural view of a positioning needle of an anterior cervical spine surgical segment according to the present invention.

Fig. 2 is a schematic structural diagram of another embodiment of the positioning needle.

Detailed Description

The following examples are intended to illustrate the invention, but not to limit its scope.

As shown in fig. 1 and 2, the positioning needle for anterior cervical spine surgery segment of the present invention comprises a needle head 1, an insertion section 2, a depth limiting part 3 and a connection section 4, wherein the needle head 1 is arranged at the end part of the insertion section 2, and the depth limiting part 3 is fixedly arranged between the insertion section 2 and the connection section 4.

It should be noted that the arrow-shaped tip of the needle shown in fig. 1 and 2 only marks the needle position, and the needle is not actually arrow-shaped, because the arrow-shaped needle has more damage to human tissue than a normal needle, and if the located segment is not the surgical segment, it is equal to cause iatrogenic injury, which does not conform to the medical principle.

Preferably, the anterior cervical segment positioning needle further comprises a handle portion 6, and the end of the connecting segment 4 is fixedly connected to one end of the handle portion 6.

The end of the handle part 6 is provided with a conical fixing part 5, and the end of the connecting section 4 is fixedly connected to the conical top end of the conical fixing part 5.

As shown in fig. 1, the depth limiter 3 is a disc-shaped depth limiter.

As shown in fig. 2, the depth stop portion 3 is an L-shaped depth stop device.

It will be understood by those skilled in the art that the depth limiter portion 3 is not limited to both the disc-shaped depth limiter and the L-shaped depth limiter, and all such depth limiter portions are within the scope of the present patent application.

Further preferably, the peripheral wall of the insertion section 2 is provided with a plurality of scales for marking the insertion depth.

The scales are fixedly arranged on the peripheral wall of the insertion section 2 through electroplating.

Anterior cervical spine operation segment pilot pin when using, the doctor holds between the fingers handle portion 6, inserts the centrum clearance of cervical vertebra with syringe needle 1 and insertion section 2. Because the limit for depth effect of limit for depth portion 3 makes anterior cervical spine operation festival section pilot pin can not insert too deeply to avoid the pilot pin because insert too deeply and injure the cervical spinal cord. In addition, as the peripheral wall of the insertion section 2 is provided with a plurality of scales for marking the insertion depth, a doctor can clearly master the insertion depth in the insertion process, for example, one scale is inserted to be 1mm, two scales are inserted to be 2mm, and the like. Because different scales have different lengths, widths, shapes or colors, the doctor can observe the scales conveniently.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides an anterior cervical spine operation segment positioning needle, its characterized in that, anterior cervical spine operation segment positioning needle include syringe needle, insert the section, limit deep and linkage segment, the syringe needle setting at the tip of inserting the section, limit deep fixed the setting between inserting section and linkage segment.

2. The anterior cervical surgical needle assembly of claim 1, further comprising a handle portion, the connecting segment having an end fixedly attached to an end of the handle portion.

3. The anterior cervical surgical segment positioning pin of claim 2, wherein the handle portion is provided at an end thereof with a tapered fixing portion, and the connecting portion is fixedly connected at an end thereof to a tapered tip of the tapered fixing portion.

4. The anterior cervical surgical segment positioning pin of any one of claims 1-3, wherein the depth stop is a disc-shaped depth stop.

5. The anterior cervical surgical segment positioning pin of any one of claims 1-3, wherein the depth limiting portion is an L-shaped depth limiting device.

6. The anterior cervical surgical segment locator of claim 1, wherein: the periphery wall of the insertion section is provided with a plurality of scales for marking the insertion depth, and the total length of the insertion section is 1 cm.

7. The anterior cervical surgical segment positioning pin of claim 6, wherein the scale is fixedly provided on the outer peripheral wall of the insertion section by plating.

8. The anterior cervical surgical segment positioning pin of claim 6, wherein different graduations have different lengths, widths, shapes or colors.