Fracture reduction fixing device for children

Abstract

The invention discloses a child fracture reduction fixing device which is characterized by comprising a Kirschner wire, an inner hexagonal cap, a clamping cover, a handle, a threaded structure, a guide protection sleeve, an outer fixing frame rod and a Kirschner wire fixing block. According to the fracture reduction fixing device, the head end of a Kirschner wire with threads is drilled into the near end and the far end of a fracture near section, then a handle is installed at the tail end of the Kirschner wire; the handle is held, and the fracture end is pulled, pried and shifted through the Kirschner wire to conduct involution reduction. According to the reduction method, a kirschner wire with a thread is drilled into the bone, so that good pullout resistance is achieved, and large reduction force can be conveniently applied; meanwhile, the fracture end is directly dragged through the Kirschner wire, a good force application point can be provided, enough reduction force can be provided, the reduction force and angle can be conveniently adjusted and the fracture end can be aligned; after reduction, the Kirschner wire can be directly fixed to the external fixing frame designed by the invention or the Kirschner wire can be pulled out to be assisted by a gypsum brace for external fixation, and fixation after reduction is carried out. Besides, the metal device is convenient to disinfect and can be repeatedly used, and waste is reduced.

Description

technical field [0001] The invention belongs to the field of orthopedic medical instruments, and in particular relates to a fracture reduction and fixation device for children. Background technique [0002] When children are active, bumps and falls often occur. Because their bones and growth plates are often weaker than ligaments and adjacent supporting tissues, they are more prone to fractures. The incidence of fractures in children is as high as 1 / 3, so children are fractured High-incidence population; fractures in children include transverse fractures, oblique fractures, spiral fractures, avulsion fractures, greenstick fractures, multi-segment fractures, etc., as well as special types such as greenstick fractures, curved fractures, and epiphyseal injuries, which involve the epiphysis of the growth plate Plate-metaphysis injury is very complicated, and there are at least 5 types of Salter-Harris classification; since children are in the period of skeletal growth, in additi...

AI Technical Summary

Problems solved by technology

However, compared with adult fracture reduction operations, children's fracture reduction operations mainly have the following difficulties that need to be resolved: 1. Most fracture reduction operations are manual traction reduction, and the force directly acts on the skin and soft tissues, and children's skin and soft tissues are delicate and cannot be applied too much 2. It is not easy to find the point of application of force in manual reset; 3. Children's bones are thin, and there are few existing manual reset tools, and most of them are used for adult fractures, which are not suitable for children's bones, resulting in Reset doesn't work well

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