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Patella bone fracture inner fixer

An internal fixator and patella fracture technology, which is applied in the field of medical devices to achieve the effects of wide application, promoting the healing and growth of broken bones, and being cheap.

Inactive Publication Date: 2017-06-30
SECOND AFFILIATED HOSPITAL SECOND MILITARY MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no corresponding disclosure about a kind of patella fracture internal fixer that can adjust the size, fit closely with the patella, gather the fracture fragments by progressive pressurization, and can fix the fragments of the patella
[0008] In summary, there is an urgent need for a patellar fracture internal fixer that can adjust the size, fit closely with the patella, gather the fracture fragments by progressive pressure, and fix the fragments of the patella fracture. No report

Method used

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  • Patella bone fracture inner fixer
  • Patella bone fracture inner fixer
  • Patella bone fracture inner fixer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Please refer to figure 1 and figure 2 , figure 1 It is a structural schematic diagram of a patella fracture internal fixator of the present invention. figure 2 It is a schematic diagram of marking structure of each part of a patella fracture internal fixator, the fixer includes an upper end fixation device 1, a lower end fixation device 2, and a pressurizing device 3; the upper end fixation device 1 is connected to the lower end through the pressurizing device 3 Fixture 2.

[0043]The upper end fixing device 1 includes an upper end fixing plate 11, an upper end fixing claw 12, and an upper end raised plate 13; the upper end fixing claw 12 is connected to one side of the upper end fixing plate 11, and the upper end fixing claw 12 is at least one, Preferably, the number of upper fixing claws 12 is three; the upper fixing claws 12 and the upper fixing plate 11 are integrally formed; the outer surface of the upper fixing plate 11 is provided with an upper raised plate ...

Embodiment 2

[0056] Please refer to image 3 , image 3 It is a structural schematic diagram of another internal fixator for patella fracture of the present invention. This embodiment is basically the same as Embodiment 1, the difference is that there is no slide bar 32 in the pressurizing device 3 in this embodiment, and the slide bar 32 is replaced by a pressurizing screw 31, that is, the pressurizing device in this embodiment 3 is composed of two pressurizing screw rods 31, and two pressurizing screw rods 31 are used for adjustment in the pressurizing device 3. On the one hand, a reliable pressurizing force is provided and the fixing is firm; on the other hand, both sides can be pressurized and adjusted, and can Fine-tuning is more conducive to the engagement of broken bones and can better promote the healing and growth of broken bones.

[0057] A kind of patella fracture internal fixator of the present invention has following technical effect:

[0058] The internal fixer for patella...

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Abstract

The invention relates to a patella bone fracture inner fixer, which comprises an upper end fixing device, a lower end fixing device and a pressurizing device, wherein the upper end fixing device comprises an upper end fixing plate, an upper end fixing claw and an upper end projected plate; the upper end fixing claw is connected at one side of the upper end fixing plate; the outer surface of the upper end fixing plate is provided with the upper end projected plate; the lower end fixing device comprises a lower end fixing plate, a lower end fixing claw and a lower end projected plate; the outer surface of the lower end fixing plate is provided with a lower end projected plate. The patella bone fracture inner fixer has the advantages that after a bone fracture block is fixed by using the patella bone fracture inner fixer through the upper end fixing claw and the lower end fixing claw, a middle pressurizing screw rod can be tightly screwed for pressurizing and gathering the bone fracture block; the fixing device is also provided with a plurality of locking nail holes; fragmentary bone blocks can be fixed according to the bone fracture position and requirements by screws, so that a good bone fracture fixing effect is achieved. A patient can perform functional training in an early stage, so that the joint function can be well recovered.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an internal fixer for patella fractures. Background technique [0002] Patella fracture is one of the common fractures of the knee. With the aging of the social population and the development of transportation, the incidence of patella fractures has increased significantly. According to the shape of the fracture line, it can be divided into transverse fractures, upper pole or lower pole fractures , comminuted fracture, longitudinal split fracture and osteochondral fracture, the patella is an important part of the knee extensor device, and its fracture means that the knee extensor device has suffered serious damage. Therefore, most comminuted patellar fractures require surgical treatment. The goals of treatment are to restore the continuity of the extensor mechanism, restore the flatness of the articular surface of the patella, and achieve a firm fixation that allows ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/80
CPCA61B17/8009A61B17/8023A61B17/8061
Inventor 林浩东侯春林林耀发
Owner SECOND AFFILIATED HOSPITAL SECOND MILITARY MEDICAL UNIV
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