CN204293245U - A kind of patellar fracture bone-knitting device - Google Patents

Abstract

A patella fracture osteosynthesis device, comprising a metal mesh and screws, the metal mesh has a large number of screw holes; the metal mesh can be cut and shaped arbitrarily according to the fracture area and shape. The utility model is simple in structure, easy to use, economical and practical, can be cut and shaped arbitrarily according to the shape of the patella during operation, can fix different types of patella fractures, has a wide range of applications, and has good clinical application value.

Description

A kind of osteosynthesis device for patella fracture

technical field

The utility model belongs to the field of medical instruments, in particular to a bone-synthesizing device for patella fractures.

Background technique

Patella fractures are common clinical fractures, accounting for about 0.5%-1.5% of total body fractures. According to the shape of the fracture line, they can be divided into transverse fractures, upper pole or lower pole fractures, comminuted fractures, longitudinal split fractures, and osteochondral fractures. 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 early mobilization.

Surgery is the main way to treat patellar fractures. At present, there are several types of surgical internal fixation for patellar fractures: steel wire, titanium cable cerclage internal fixation, tension band fixation, percutaneous patellar bone system internal fixation, nickel-titanium-patella concentrator, etc. These methods have different indications and have their own advantages and disadvantages. Improper selection or wrong use can cause many complications, such as traumatic arthritis, limited functional activities of the knee joint, fracture of internal fixation materials, joint adhesions, stiffness and other complications.

The patella is an irregular bone, and it is difficult to fix the fracture. Although there are many surgical and internal fixation methods for patella fractures, they all have defects in varying degrees. Therefore, it is an urgent problem to be solved to design an internal fixation material for fractures that is simple to operate, reliable in fixation, economical and practical, and can be applied to different types of fractures.

Contents of the invention

The purpose of the utility model is to propose a patella fracture osteosynthesis device with simple operation and good fixing effect aiming at the deficiencies in the prior art.

In order to achieve the above object, the technical solution adopted by the utility model is.

A patella fracture osteosynthesis device, comprising a metal mesh and screws, the metal mesh has a large number of screw holes; the metal mesh can be cut and shaped arbitrarily according to the fracture area and shape.

The screws are not limited to locking screws, and may be non-locking screws or lag screws.

The material of the screw is not limited to be consistent with the metal mesh.

During the operation, the broken end of the patella is first reset. According to the fracture shape and degree of displacement of the patella, a metal mesh of an appropriate size is cut and shaped according to the shape of the patella so that the metal mesh can be well attached to the patella. Surface and cover the broken end of the fracture, and then use multiple screws to fix the metal mesh on the patella.

Through the above technical scheme, the beneficial effects of the utility model are:

The utility model is simple in structure, easy to use, economical and practical, can be cut and shaped arbitrarily according to the shape of the patella during operation, can fix different types of patella fractures, has a wide range of applications, and has good clinical application value.

Description of drawings

Accompanying drawing is the structural representation of the utility model.

In the figure 1, patella; 2, metal mesh; 3, screw; 4, screw hole.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail.

As shown in the accompanying drawings, a patella fracture osteosynthesis device includes a metal mesh 2 and screws 3, and a large number of screw holes 4 are arranged on the metal mesh 2; the metal mesh 2 can be randomly cut and molded according to the fracture area and shape. shape.

During the operation, the broken end of the patella 1 is first reset, and according to the fracture shape and displacement degree of the patella 1, the metal mesh 2 of an appropriate size is cut and shaped according to the shape of the patella 1, so that the metal mesh 2 can be well The metal mesh 2 is fixed on the patella 1 with multiple screws 3 .

Claims (3)

1. A patella fracture osteosynthesis device, comprising a metal mesh and screws, the metal mesh has a large number of screw holes; the metal mesh can be cut and shaped arbitrarily according to the fracture area and shape. 2 . The osteosynthesis device for patella fractures according to claim 1 , wherein the screws are not limited to locking screws, and may be non-locking screws or lag screws. 3. A bone-synthesizing device for patella fracture according to claim 1, characterized in that: the material of the screw is not limited to be consistent with the metal mesh.