A reset device and reset method for femoral shaft fracture

Abstract

The invention discloses a reduction device for femoral shaft fractures. The reduction device comprises a reduction sleeve, a reduction air bag set composed of a plurality of reduction air bags and a compressor. The reduction air bags are located in an inner cavity of the reduction sleeve, one side of each reduction air bag is fixedly connected to the inner wall of the reduction sleeve, and each reduction air bag is provided with an air inlet which penetrates through the reduction sleeve and is located outside the reduction sleeve. The air inlets are connected with the compressor through a pressure regulating valve set. The side, close to the human body, of each reduction air bag is pasted with a thin film resistance strain type pressure transducer. The reduction device can finish femoral shaft fracture reduction on the premise that X-ray imaging is not shielded, percutaneous fixation is achieved and secondary injury is avoided, and preparation is made for following intramedullary nail implantation. The invention further provides a reduction method of the reduction device. The method is simple and easy to implement, and reduction of the fractures can be achieved.

Description

technical field [0001] The invention relates to the field of surgical robots, in particular to a reset device and a reset method for femoral shaft fractures. Background technique [0002] With the advent of Biological Osteosynthesis (BO), closed reduction and intramedullary nailing has become the gold standard treatment for femoral shaft fractures, the core of which is minimally invasive or non-invasive closed reduction. During the operation, the fracture ends that overlap and shift along the long axis of the femur are fully distracted with the help of a traction table, and then the doctor uses manipulation or instrumentation to obtain a temporary reduction, so that gold fingers or guide wires can be inserted into the marrow after reaming nails, and finally complete the locking of the distal and proximal ends, and the whole operation is completed under the monitoring and guidance of the C-arm machine perspective. This brings iatrogenic radiation harm to doctors and patients...

AI Technical Summary

Problems solved by technology

For most doctors, closed reduction that relies on experience is not an easy job, and it is more challenging to maintain a satisfactory closed reduction state for a long time. Until today, how to avoid loss of reduction during surgery is still a problem in trauma orthopedics. Physician's Dilemma

In view of this, scholars at home and abroad have begun to study mechanically assisted fracture reduction techniques, and have designed and manufactured several experimental mechanical devices for femoral shaft fracture reduction, but these mechanical devices are too bulky, interfere with surgical operations, block X-ray imaging or cause harm to the human body. Disadvantages such as secondary damage

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