Osteotomy spreader

Abstract

The invention provides an osteotomy spreader. The osteotomy spreader comprises a first clamp body, a second clamp body hinged to the first clamp body and an angle adjusting assembly used for adjusting the included angle between the first clamp body and the second clamp body. The jaw part of the first forceps body and the jaw part of the second forceps body are each provided with a first distraction piece bent in the same direction, the first distraction pieces are detachably connected with second distraction pieces, and the width size of the second distraction pieces is larger than that of the first distraction pieces; the handle parts of the first forceps body and the second forceps body are each provided with a supporting base which can rotate in the circumferential direction of the handle parts, and the bottoms of the supporting bases are in an arc shape and used for being clamped to the legs of a patient. According to the osteotomy distraction device, the first distraction piece and the second distraction piece can be switched according to the condition of a patient so as to adjust the distraction width, and the situation that a surgical incision is torn or screw placement and osteotomy of a doctor are affected is avoided. The supporting seat on the osteotomy dilator can be clamped on the leg of a patient, so that a supporting force is provided for the osteotomy dilator, and the risk in a closed osteotomy operation is reduced.

Description

technical field [0001] The invention relates to the technical field of medical aids, in particular to an osteotomy spreader. Background technique [0002] Patients with deformed legs are more prone to wear and tear on their knees when walking or bearing weight due to the bent line of force of the legs, which can easily lead to the occurrence of arthritis, which not only affects the patient's physical health, but also brings a lot of psychological burden to the patient. Closed osteotomy is a common method for the treatment of leg deformities, and it is widely used because of its advantages of firm fixation and fast healing of the broken ends. When performing closed osteotomy, the doctor needs to insert the Kirschner wire into a relatively satisfactory osteotomy position with the assistance of X-ray fluoroscopy, in order to make the two osteotomy planes fit as closely as possible after closure, and then Then use a saw blade to intercept the wedge-shaped bone along the plane f...

AI Technical Summary

Problems solved by technology

However, the size of the expansion piece of the existing spreader is fixed. In the case of a small incision in the legs, in order to ensure a sufficient spacing, the incision has to be enlarged, otherwise it is easy to open the incision with the spreader. Tearing the incision will cause greater harm to the patient; and in the case of a large incision in the leg, if the expansion piece is too small, the expansion width will not be enough, making it inconvenient for doctors to place needles and perform osteotomy

In addition, a doctor needs to hold the spreader and keep the spreader open during the whole operation. However, due to the long process of inserting the Kirschner wire and osteotomy, the doctor is prone to hand tremors due to fatigue The occurrence of the situation, and then bring a lot of risk to the closed osteotomy

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