CN217593027U

CN217593027U - Clavicle intramedullary needle

Info

Publication number: CN217593027U
Application number: CN202221303514.0U
Authority: CN
Inventors: 宋梦杰
Original assignee: Jiaozuo Xingang Medical Equipment Co ltd
Current assignee: Jiaozuo Xingang Medical Equipment Co ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-10-18
Anticipated expiration: 2032-05-27

Abstract

The utility model relates to the technical field of medical appliances, in particular to a clavicle intramedullary pin, the front part of which is provided with a main pin head; the outer side of the main needle head is provided with a thread A; the front part of the main needle is provided with a main needle point; the back part of the intramedullary main needle is provided with a main needle tail; the main needle tail is arranged in an inclined plane structure with the diameter gradually increasing; the inclined surface of the main needle tail is provided with a thread B; an anti-rotation needle groove is arranged on the side surface of the intramedullary main needle; the anti-rotation needle is arranged in the anti-rotation needle groove, so that the problem that the fixed intramedullary needle for the clavicle is easy to rotate and loosen is solved.

Description

Clavicle intramedullary needle

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to intramedullary nail of clavicle.

Background

The intramedullary pin internal fixation is an operation of inserting a intramedullary pin with proper size and length into the marrow cavities at two sides of the fracture end to fix the fracture. Intramedullary pins come in different types, such as "V" shaped, quincunx, triangular, etc. V-shaped, quincunx and triangular intramedullary needles, which are suitable for long tubular bone fracture; three-wing nail suitable for femoral neck fracture; kirschner wire is commonly used for short bone fracture of hands and feet. Clinically, the closed intramedullary pin fixation and the open intramedullary pin fixation are divided, and in the prior art, in the process of clavicle operation fixation, an intramedullary pin for clavicle fixation may be unstably fixed due to the movement of a clavicle, so that the clavicle is not well recovered.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clavicle intramedullary pin, solve the clavicle and take place rotatory not hard up problem with fixed intramedullary pin easily.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a clavicle intramedullary needle characterized by: comprises a main needle in marrow, a main needle head, a needle point of the main needle, a thread A, a main needle tail, a thread B, an anti-rotation needle groove and an anti-rotation needle; the front part of the intramedullary main needle is provided with a main needle head; the outer side of the main needle head is provided with a thread A; the front part of the main needle is provided with a main needle point; the back part of the intramedullary main needle is provided with a main needle tail; the main needle tail is arranged in an inclined plane structure with the diameter gradually increasing; the inclined surface of the main needle tail is provided with a thread B; an anti-rotation needle groove is arranged on the side surface of the intramedullary main needle; an anti-rotation needle is arranged in the anti-rotation needle groove.

Further, the edge of the thread A arranged on the main needle head is connected with the needle point of the main needle.

Furthermore, the included angle of the needle point of the main needle is 90-150 degrees.

Further, the diameter of the main needle head is larger than that of the intramedullary main needle.

Further, the anti-rotation needle head is provided with a needle tip; the needle point is arranged in a triangular pyramid structure.

Further, a needle point groove is formed in the bottom of the anti-rotation needle groove; the needle point groove is internally provided with a conical structure

Compared with the prior art, the utility model discloses can realize one of following beneficial effect:

1. the front part of the intramedullary main needle is provided with a main needle head; the outer side of the main needle head is provided with a thread A; the front part of the main needle is provided with a main needle point; the back part of the intramedullary main needle is provided with a main needle tail; the main needle tail is arranged in an inclined plane structure with the diameter gradually increasing; the inclined surface of the main needle tail is provided with a thread B; an anti-rotation needle groove is arranged on the side surface of the intramedullary main needle; the anti-rotation needle is arranged in the anti-rotation needle groove, the anti-rotation needle can be matched with the intramedullary main needle by arranging the anti-rotation needle on the intramedullary main needle, when in operation, the intramedullary main needle is screwed in from the shoulder peak end of the clavicle until the proximal end of the clavicle, the anti-rotation needle is inserted into the hole groove on the main needle until the tips of the intramedullary main needle and the clavicle are flush if the condition allows, and the rotation of the intramedullary main needle is prevented by the matching of the anti-rotation needle.

2. The edge of the thread A arranged on the main needle head is connected with the needle point of the main needle, so that the thread A can be directly connected with the needle point of the main needle, and the thread A can be directly screwed into the clavicle for fixation during operation.

3. The included angle of the main needle tip is 90-150 degrees, and the main needle tip with different included angles can be selected for operation fixation according to different clavicle fixation angles of a patient to be examined.

4. The diameter of the main needle head is larger than that of the intramedullary main needle, so that the main needle head with a larger diameter can be arranged, the fixation stability of the intramedullary needle can be improved through the threads with a large diameter, and the intramedullary main needle with a small diameter is convenient for operation.

5. The anti-rotation needle head is provided with a needle tip; the needle point is arranged in a triangular pyramid structure, so that the anti-rotation needle can be conveniently inserted in the operation process through the arranged triangular pyramid needle point.

6. A needle point groove is formed in the bottom of the anti-rotation needle groove; the needle point inslot is the toper structure setting, can realize that the needle is resisted through the needle point groove that sets up in resisting the needle groove bottom and revolves the needle and carry on spacingly, prevents that anti-needle that revolves from rotating, influences the fixed of intramedullary nail.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

A clavicle intramedullary pin comprises an intramedullary main pin 1, a main pin head 2, a main pin tip 3, a thread A4, a main pin tail 5, a thread B6, an anti-rotation pin groove 7 and an anti-rotation pin 8; the front part of the intramedullary main needle 1 is provided with a main needle head 2; the outer side of the main needle head 2 is provided with a thread A4; the front part of the main needle head 2 is provided with a main needle point 3; the back part of the intramedullary main needle 1 is provided with a main needle tail 5; the main needle tail 5 is arranged in an inclined plane structure with the diameter gradually increasing; the inclined surface of the main needle tail 5 is provided with a thread B6; an anti-rotation needle groove 7 is arranged on the side surface of the intramedullary main needle 1; the anti-rotation needle 8 is arranged in the anti-rotation needle groove 7, so that the anti-rotation needle can be matched with the intramedullary main needle for use, when in operation, the intramedullary main needle is screwed in from the shoulder peak end of the clavicle until the proximal end of the clavicle, the anti-rotation needle is inserted into the hole groove on the main needle until the tips of the anti-rotation needle and the main needle are flush if the situation allows, and the rotation of the intramedullary main needle is prevented through the matching of the anti-rotation needle.

Example 2

On the basis of the embodiment 1, the edge of the thread A4 arranged on the main needle head 2 is connected with the main needle point 3, so that the thread a can be directly connected with the main needle point, and the thread a can be directly screwed into the clavicle for fixing during the operation.

Example 3

On the basis of embodiment 1, the main needle point 3 has an included angle of 90-150 degrees, and the main needle points with different included angles can be selected for surgical fixation according to different clavicle fixation angles of patients to be examined.

Example 4

On the basis of embodiment 1, the diameter of the main needle head 2 is larger than that of the intramedullary main needle 1, so that the main needle head with a larger diameter can be arranged, the fixing stability of the intramedullary needle can be improved through the threads with a large diameter, and the intramedullary main needle with a small diameter is convenient for operation.

Example 5

On the basis of the embodiment 1, the head part of the anti-rotation needle 8 is provided with a needle point 9; the needle point 9 is arranged in a triangular pyramid structure, so that the anti-rotation needle can be conveniently inserted in the operation process through the arranged triangular pyramid needle point.

Example 6

On the basis of the embodiment 1, the bottom of the anti-rotation needle groove 7 is provided with a needle point groove 10; the needle point groove 10 is internally provided with a conical structure, so that the needle point groove arranged at the bottom of the anti-rotation needle groove can limit the anti-rotation needle, and the anti-rotation needle is prevented from rotating to influence the fixation of the intramedullary needle.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A clavicle intramedullary needle characterized by: comprises an intramedullary main needle (1), a main needle head (2), a main needle point (3), a thread A (4), a main needle tail (5), a thread B (6), an anti-rotation needle groove (7) and an anti-rotation needle (8); the front part of the intramedullary main needle (1) is provided with a main needle head (2); the outer side of the main needle head (2) is provided with a thread A (4); the front part of the main needle head (2) is provided with a main needle point (3); the back part of the intramedullary main needle (1) is provided with a main needle tail (5); the main needle tail (5) is arranged in an inclined plane structure with the diameter gradually increasing; the inclined surface of the main needle tail (5) is provided with a thread B (6); an anti-rotation needle groove (7) is arranged on the side surface of the intramedullary main needle (1); an anti-rotation needle (8) is arranged in the anti-rotation needle groove (7).

2. The intramedullary nail of clavicle of claim 1, wherein: the edge of a thread A (4) arranged on the main needle head (2) is connected with the needle point (3) of the main needle.

3. The intramedullary nail of clavicle of claim 1 wherein: the included angle of the needle point (3) of the main needle is 90-150 degrees.

4. The intramedullary nail of clavicle of claim 1 wherein: the diameter of the main needle head (2) is larger than that of the intramedullary main needle (1).

5. The intramedullary nail of clavicle of claim 1, wherein: the head of the anti-rotation needle (8) is provided with a needle point (9); the needle point (9) is arranged in a triangular pyramid structure.

6. The intramedullary nail of clavicle of claim 1, wherein: a needle point groove (10) is formed at the bottom of the anti-rotation needle groove (7); the needle point groove (10) is internally provided with a conical structure.