CN215534922U

CN215534922U - Patella fracture fixing device

Info

Publication number: CN215534922U
Application number: CN202121777717.9U
Authority: CN
Inventors: 王士波
Original assignee: Shenzhen City Luohu District Chinese Medicine Hospital
Current assignee: Shenzhen City Luohu District Chinese Medicine Hospital
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-18
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a patella fracture fixing device which is used for fixing patella fracture and at least comprises two patella needles, wherein the outer wall of the head part of each patella needle is provided with a first thread, the outer wall of the tail part of each patella needle is provided with a second thread, the thread pitch of the first thread is smaller than that of the second thread, the tail part of each patella needle is connected with a tension binding wire, the head parts of at least two patella needles are respectively inserted into a patella, and the tension binding wires at the tail parts of the adjacent patella needles are mutually fixed. The patellar needle has the advantages that the tail part of the patellar needle is provided with a high-strength tension binding wire, the tension binding wire is firmly embedded, the tension binding wires are knotted and fixed with each other, and the operation time can be shortened; the head outer wall of patellar needle is equipped with first screw thread, the afterbody outer wall of patellar needle is equipped with the second screw thread, and first screw thread and second screw thread pitch are unequal, and the patellar needle realizes the pressurization at the wrong knead fracture position in-process, and the pressurization can promote the healing of fracture, simultaneously because there are first screw thread and second screw thread, can prevent the emergence that the patellar needle moved back the needle.

Description

Patella fracture fixing device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a patella fracture fixing device.

Background

The patella fracture is often fixed by using a steel needle, and the fracture part can obtain better treatment effect after the steel needle is fixed, but the steel needle fixation has a plurality of defects, such as overlong tail part of the steel needle, and when the tail part of the steel needle is contacted with soft tissue, the local pain of the soft tissue is caused, so that a patient dares not to exercise early; meanwhile, the steel wire at the tail part of the steel needle is easy to separate from the steel needle, so that the fixation is invalid, even the steel wire is broken, and the patella fracture fixing device is designed for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a patella fracture fixing device.

The utility model has a technical scheme that:

the utility model provides a patella fracture fixing device for fixed patella fracture includes two patellar needles at least, the head outer wall of patellar needle is equipped with first screw thread, the afterbody outer wall of patellar needle is equipped with the second screw thread, the pitch of first screw thread is less than the pitch of second screw thread, the connection of the afterbody of patellar needle has tension wiring, and in the head of two at least patellar needles inserted the patella respectively, the tension wiring reciprocal anchorage of the afterbody of adjacent patellar needle.

In a preferred scheme, a screwing groove is formed in the end face of the tail part of the patella needle.

In a preferred embodiment, the diameter of the patellar needle is 3 mm to 4 mm.

In a preferred embodiment the length of said patellar needle is 30 mm, 35 mm, 40 mm, 45 mm or 50 mm.

In a preferable scheme, the number of the patellar needles is 4, and tension binding wires at the tail parts of the 2 patellar needles are mutually fixed.

By combining the technical scheme, the utility model has the beneficial effects that: the tail part of the patella needle is provided with a high-strength tension binding wire which is firmly embedded and mutually knotted and fixed, so that the operation time can be shortened; the head outer wall of patellar needle is equipped with first screw thread, the afterbody outer wall of patellar needle is equipped with the second screw thread, and first screw thread and second screw thread pitch are unequal, and the patellar needle realizes the pressurization at the wrong knead fracture position in-process, and the pressurization can promote the healing of fracture, simultaneously because there are first screw thread and second screw thread, can prevent the emergence that the patellar needle moved back the needle.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a patellar needle of the present invention;

FIG. 2 is a schematic view of the present invention prior to use in securing a patella;

FIG. 3 is a first illustration of the present invention after use in securing a patella;

fig. 4 is a second schematic view of the utility model after use in fixing the patella.

Detailed Description

For the purpose of illustrating the spirit and objects of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 4, a patella fracture fixing device for fixing fracture of a patella 20 at least comprises two patella needles 10, the outer wall of the head of each patella needle 10 is provided with a first thread 11, the outer wall of the tail of each patella needle 10 is provided with a second thread 12, the thread pitch of the first thread 11 is smaller than that of the second thread 12, the tail of each patella needle 10 is connected with a tension binding wire 13, the heads of at least two patella needles 10 are respectively inserted into the patella 20, and the tension binding wires 13 at the tail of the adjacent patella needles 10 are mutually knotted and fixed.

As shown in fig. 1 to 4, taking transverse fracture of the patella 20 as an example, after the patella 20 is repositioned, two 2.0mm kirschner wires are respectively driven into the upper end and the lower end of the patella 20, and after fluoroscopy is satisfied, a proper length of the patella needle 10 of 3.5mm is taken out by reaming the 3.0mm kirschner wire, the patella needle 10 is screwed in along the reaming, and the tension binding wires 13 at the tail part of the patella needle 10 are knotted and fixed with each other, so that the operation is completed. The tension binding thread 13 can be knotted in a crossing way or in a parallel way, and the knotted tension binding thread 13 is wrapped outside the patella 20.

As shown in fig. 1 to 4, the tail part of the patella needle 10 is provided with a high tension binding thread 13, the tension binding thread 13 is firmly embedded, and the tension binding threads 13 are knotted and fixed with each other, thereby shortening the operation time.

As shown in fig. 1 to 4, the outer wall of the head of the patella needle 10 is provided with a first thread 11, the outer wall of the tail of the patella needle 10 is provided with a second thread 12, the thread pitches of the first thread 11 and the second thread 12 are different, the patella needle 10 is pressurized when being screwed into a fracture part of a patella 20, the pressurization can promote the healing of the fracture, and the first thread 11 and the second thread 12 can prevent the needle withdrawing of the patella needle 10;

as shown in fig. 1 to 4, a tightening groove is provided on the trailing end surface of the patella needle 10. The tail end face of the patella needle 10 is provided with a screwing groove, and the external wrench 30 can quickly screw the patella needle 10 into the fracture part of the patella 20. The spanner 30 screws the patellar needle 10 into the fracture part of the patella 20, so that the length of the tail part of the patellar needle 10 can be reasonably adjusted, and the stimulation of soft tissues is avoided.

As shown in fig. 1 to 4, the diameter of the patella needle 10 is 3 mm to 4 mm. The diameter of the patella needle 10 is 3 mm, 3.5mm, 4 mm.

As shown in fig. 1 to 4, the length of the patella needle 10 is 30 mm, 35 mm, 40 mm, 45 mm or 50 mm.

As shown in fig. 1 to 4, the number of the patella needles 10 is 4, wherein tension binding wires 13 of the tails of the 2 patella needles 10 are fixed to each other. Wherein the tension binding thread 13 at the tail part of 2 patella needles 10 are mutually fixed, in addition, the tension binding thread 13 at the tail part of 2 patella needles 10 are mutually fixed, the tension binding thread 13 at the tail part of 4 patella needles 10 wraps the outside of the patella 20, and the fracture of the patella 20 is fixed firmly.

The foregoing is a detailed description of the utility model, and it should be noted that modifications and adaptations can be made by those skilled in the art without departing from the principle of the utility model, and are intended to be within the scope of the utility model.

Claims

1. The utility model provides a patella fracture fixing device for fixed patella fracture, its characterized in that includes two patella needles at least, the head outer wall of patella needle is equipped with first screw thread, the afterbody outer wall of patella needle is equipped with the second screw thread, the pitch of first screw thread is less than the pitch of second screw thread, the connection of the afterbody of patella needle has tension to tie up the line, and in the patella was inserted respectively to the head of two at least patella needles, the tension of the afterbody of adjacent patella needle tied up the line reciprocal anchorage.

2. The patellar fracture fixation device according to claim 1, wherein the caudal end surface of the patellar pin is provided with a tightening groove.

3. The patellar fracture fixation device according to claim 1, wherein the patellar pin has a diameter of 3 mm to 4 mm.

4. The patellar fracture fixation device according to claim 1, wherein the length of the patellar pin is 30 mm, 35 mm, 40 mm, 45 mm, or 50 mm.

5. The patellar fracture fixation device according to claim 1, wherein the number of the patellar pins is 4, and tension binding wires at the tail parts of the 2 patellar pins are fixed to each other.