Micro lock external fixing device for treating hand or foot bone fracture

Abstract

The invention relates to a micro lock external fixing device for treating a hand or foot bone fracture, and belongs to the technical field of medical apparatuses and instruments. The device consists of a long-shaped frame body with a fixed length and a plurality of fracture fixing screws which are matched with the long-shaped frame body; the length of the long-shaped frame body is 30mm to 60mm; a plurality of threaded holes are transversely formed in the frame body; the diameters of the fracture fixing screws are 2.5mm to 3.5mm; the threaded holes of the frame body are matched with the screw threads of the screws; the facture fixing screws are screwed into the threaded holes to form a whole with the frame body; the head parts of the fracture fixing screws are fixed to a hand or foot bone of a fracture part. The device provided by the invention is small in size and light in weight; a wound is small, the bleeding amount is small, an incision is reduced by times, and a cicatrix is small and attractive; the pain of a patient is little, and the device is beneficial to the rehabilitation of the sick body of the patient; operative complications are obviously reduced. Moreover, the risk of a second operation is avoided; the medical cost is reduced. The device can be made of a light material; the screw path damage is low; the screw path complications are few; the device is not easy to loosen to lose efficacy, so that the operation safety is improved.

Description

technical field [0001] The invention relates to a miniature locking external fixation device for treating hand and foot bone fractures, belonging to the technical field of medical instruments. Background technique [0002] Hand and foot bone fractures are common fractures. Surgical treatment is one of the main treatment methods. The purpose of treatment is to fix the fracture site. There are two kinds of fixation methods: internal fixation and external fixation. Internal fixation using steel plates and screws as materials is currently the main clinical treatment method. The disadvantages of traditional internal fixation are large surgical trauma, long incision, and obvious scars. After the fracture heals, the internal fixation plate is located under the skin, which is very obvious. , and often requires secondary surgery to remove; due to the small bones of the hands and feet, and thin skin and soft tissues, it is difficult to place the steel plate during the operation, the s...

AI Technical Summary

Problems solved by technology

Internal fixation using steel plates and screws as materials is currently the main clinical treatment method. The disadvantages of traditional internal fixation are large surgical trauma, long incision, and obvious scars. After the fracture heals, the internal fixation plate is located under the skin, which is very obvious. , and often requires secondary surgery to remove; due to the small bones of the hands and feet, and thin skin and soft tissues, it is difficult to place the steel plate during the operation, the steel plate is exposed, and there are many complications such as infection; Greater impact

The structure of the traditional external fixator is as follows: figure 1 As shown, it mainly includes an elongated frame body 11, a plurality of clamping screws 12, adjusting screws 14, and fracture fixation screws 13; this structure is to adapt to the bone size of different groups of people, the length of the frame body can be adjusted by the adjustment screws, and the fracture fixation screws 13 is fixed by the clamping screw 12 and the length is adjusted; because the size of the external fixator of this structure is generally long and the structure of the frame is complicated and heavy, the operation is complicated, the fixing effect is poor, it is easy to loosen, and it often scratches adjacent fingers. The application of fixators in the treatment of hand and foot fractures is limited

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