Tibia external fixation device

Abstract

The invention concretely discloses a tibia external fixation device, which comprises a tibia fixation batten, wherein the inner side surface of the tibia fixation batten is attached to a position, corresponding to the tibia, on the outer side of the human body calf in the longitudinal direction; the near end of the tibia fixation batten is provided with a first transverse attaching plate; the far end of the tibia fixation batten is provided with a second transverse attaching plate; the first transverse attaching plate is attached to the near end position, corresponding to the tibia, on the outer side of the calf in the transverse direction; the second transverse attaching plate is attached to the far end position, corresponding to the tibia, on the outer side of the calf in the transverse direction; a plurality of direction change through holes are formed in the tibia fixation batten, the first transverse attaching plate and the second transverse attaching plate; an inner circular arc surface is arranged on the inner side wall of each direction change through hole; the tibia external fixation device also comprises a plurality of direction change threaded hole bodies assembled in the direction change through holes; an outer circular arc surface glidingly matched with the inner circular arc surface of the corresponding direction change through hole is formed in the outer side wall of each direction change threaded hole body; the tibia external fixation device also comprises screws; and the threaded end of the tail end of each screw is matched with the threaded through hole formed in the corresponding direction change threaded hole body. The matching degree of the tibia external fixation device with the appearance of the calf is high; the matched screws have various fixation angles; and the tibia external fixation device is very suitable to be used for emergency or long-time external fixation treatment on tibia fracture positions.

Description

technical field [0001] The invention relates to the technical field of fracture fixation plates, in particular to a tibial external fixation device. Background technique [0002] Tibia fractures can be divided into closed fractures and open fractures according to the integrity of the skin. For closed fractures, open reduction, titanium plate fixation or intramedullary nailing can be performed after the limb detumescence, and the internal fixation can be removed by secondary surgery after the fracture heals; for open fractures, debridement, reduction, and external fixation can be performed, and soft tissue After the conditions improve, titanium plate fixation or intramedullary nail fixation can be replaced (or not replaced), and the fixation can be removed later according to the fracture healing. Currently available external fixators include: single-arm external fixator, combined external fixator, etc. The characteristics of these external fixators can be summarized as foll...

AI Technical Summary

Problems solved by technology

Some scholars have reported that external locking titanium plates are used to treat tibia and fibula fractures, but there are also the following disadvantages: 1. Since the screws used are fully threaded, they are highly irritating to the skin and other soft tissues and are prone to infection; 2. The titanium plates and screws were originally used for internal fixation. The design is thin and compact, the thickness and width of the titanium plate are insufficient, and the mechanical strength of the thinner screw is insufficient; 3. It is not designed for external use, and sometimes multiple titanium plates are needed for fixation; 4. The titanium plate used is designed for internal fixation, which is more compatible with the shape of the bone. Good, but poorly matched to the shape of the calf

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