Combined type fracture restorer

Abstract

The invention relates to the fracture restorer technical field, and specifically relates to a combined type fracture restorer; the left cavity of a nut is screwed with a forward spinning screw rod; the right cavity of the nut is screwed with a backward spinning screw rod; a compaction rod is plugged in a second through hole; the top and bottom of a first press block are respectively connected with a boss; one side, far away from the second through hole, of the boss is connected with a third straight rod; the first press block and a second press block are arranged on two sides of a Kirschner wire. The combined type fracture restorer can be freely mounted / dismounted according to needs, can restore long bone fractures and arms and legs surrounding fractures, and different parts can be combined so as to realize long bone linear mode restoration and joint surrounding fracture right angle mode restoration; the combined type fracture restorer is simple and easy to operate, and needs no special training; the parts are simple in design and easy to use, and no special training is needed; the combined type fracture restorer is low in cost, and suitable for primary hospitals.

Description

technical field [0001] The invention relates to the technical field of fracture reducers, in particular to a combined fracture reducer. Background technique [0002] In the prior art, fracture fixation and reduction are generally divided into two categories, one is internal fixation, and the other is external fixation, and internal fixation includes steel plates and intramedullary nails. After two operations, the patient suffered a lot. The intramedullary nail fixation destroyed the blood supply of the medullary cavity, and the anti-rotation and bending resistance were poor, which was not conducive to fracture reduction and healing. External fixation includes splint fixation, plaster fixation and needle-through external fixation etc. The splint fixation is not firm enough, the banding is cumbersome, difficult to manage, affects the blood supply of soft tissues, causes more complications, the plaster fixation is not firm, affects the movement of adjacent joints, external fixa...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, fracture fixation and reduction are generally divided into two categories, one is internal fixation, and the other is external fixation, and internal fixation includes steel plates and intramedullary nails. Two operations, the patient suffered a lot, the intramedullary needle fixation destroyed the blood supply of the medullary cavity endometrium, and the anti-rotation and bending resistance were poor, which was not conducive to fracture reduction and healing. External fixation includes splint fixation, plaster fixation and needle external fixation etc. The splint fixation is not firm enough, tying is cumbersome, difficult to manage, affects soft tissue blood supply, causes more complications, plaster fixation is not firm, affects the movement of adjacent joints, external fixation with needles includes single-arm fixation and ring fixation, etc. , the single-arm fixation has poor resistance to axial force. Although the ring fixation is firm, it is bulky, difficult to operate, and heavy, which is not conducive to the patient's rest. For example, the patent number is 87210403.6. It is mainly composed of a needle-holding adjustment frame, a needle The fixed reset device basically overcomes the shortcomings of the single-arm fixed reset device and the ring type fixed reset device, but there are still the following problems, the structure is complex, and the processing accuracy is high. , so the production cost is high; it can only be used on long bones, and cannot be disassembled and assembled at will according to the condition. rest

Another example is the patent application publication number CN101847182A, the invention title is the fracture reduction robot structure disclosed in the patent application based on the six-degree-of-freedom parallel mechanism virtual and real reduction registration method for long bones. The structure uses six controllable electric push-pull rods, and uses The traditional rigid universal joint is used to connect the controllable electric push-pull rod and the upper and lower rings. During orthopedic orthopedic reduction, if the two ends of the fracture are staggered, the rigid universal joint is likely to cause excessive stress at the fracture site and cause secondary damage, increasing The pain of the patient, delayed fracture healing, may even cause damage to the universal joint or the electric push-pull rod, which affects the smooth progress of the operation. For this reason, we propose a combined fracture reducer

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