A resetter for tibial plateau split fracture bone fragments

Abstract

The invention discloses a repositor for a tibial plateau splitting fracture bone block. The repositor comprises a release link stretching into a tibia and a magnetic conductive pressure application plate used in cooperation with the release link; the release link comprises a bent rod and a straight rod connected with the bent rod, the bent rod only has a bent angle, the bent angles of the straightrod and the bent rod are submerged into the tibia, the top end of the straight rod faces the tibial plateau and applies pressure to the collapse bone block so that restoration of the tibia in the length direction can be achieved, the magnetic conductive pressure application plate is attached to the outer side of the collapse bone block, a magnetic assembly for generating magnetic attractive forceon the magnetic conductive pressure application plate is arranged inside the straight rod, and the magnetic conductive pressure application plate drives the collapse bone block to apply pressure in the lateral direction to achieve restoration. The repositor can lower the probability that the operation time is prolonged or secondary injuries are caused due to misoperation of a doctor, and can lower the probability that lateral displacement is enlarged due to knocking.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a resetter for collapsed bone fragments in tibial plateau split fractures. Background technique [0002] Tibial plateau split fracture is one of the most common fractures in knee joint trauma. The knee joint is subject to varus / valgus impact or compression violence caused by falling, which can lead to tibial plateau split fracture. When it is more serious, it is often accompanied by There is a condition where the bone fragments collapse. In clinical practice, see figure 1 , it is necessary to obliquely drill and ream the hole on the side of the tibia A opposite to the collapsed bone block B to form the reduction operation hole a (sometimes it is necessary to perform traction reduction on the entire tibia first), and then extend the reducer into the reduction operation The collapsed bone block B was reset in the hole a, and then the reduced collapsed bone block was fixed...

AI Technical Summary

Problems solved by technology

[0003] see figure 1 , the existing restorer is usually rod-shaped, and when it is inserted into the hole for reset, it hits the collapsed part. Although the collapsed bone can be pushed up to make the collapsed bone reset in the lengthwise direction of the tibia, its lateral direction cannot Recovery, during the operation, it is necessary to use the hand to assist in lateral pressing to make it completely reset. In this way, if the doctor’s hand strength is too strong or the pressing position is biased, it is likely to cause the collapsed bone to slip again. Repositioning will lead to prolonged operation time, and in severe cases, it will also cause secondary damage to the collapsed bone block. The use of existing resetters requires too much clinical experience for doctors

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