Reposition device for femoral shaft fracture

Abstract

A reposition device for femoral shaft fracture is characterized by comprising base fastening screws, a base, a motor A, a motor B, a motor C, an H-shaped frame, a right stand column, a left stand column, a right wheel disc, a left wheel disc, a base-carrying bearing, a reposition frame, a rear square pipe, a front square pipe, a rear horizontal-movement support, a front horizontal-movement support, a fixed clamping piece, a tightening screw, ropes, a vertical locking screw and a horizontal locking screw; the reposition device simulates an F-shaped repositor and can be used for reposition of the front position, the back position and lateral positions of a femoral shaft; the ropes are selected as the transmission part of the reposition device, and the transmission part is of a dual-rope structure. By means of the reposition device, femoral shaft fracture reposition can be met on the premise that X-ray imaging is not shielded, percutaneous fixation is achieved and secondary damage does not exist, and a preparation is made for subsequent intramedullary nail implantation; the invention further provides a reposition method of the reposition device, the method is easy to operate, and femoral shaft fracture reposition can be achieved.

Description

technical field [0001] The invention relates to the field of surgical robots, in particular to an auxiliary device for closed reduction of femoral shaft fractures. Background technique [0002] With the advent of BO (Biological Osteosynthesis) era, 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 broken end of the fracture is fully retracted along the long axis of the femur with the help of a traction table or a spreader, and then the doctor uses manipulation or instrumentation to obtain a temporary reduction, so that a golden finger or a guide wire can be inserted, and the intramedullary nail can be inserted after reaming. Finally, the interlocking is completed, and the whole operation is completed under the monitoring and guidance of the C-arm machine perspective. This brings iatrogenic radiation harm to doctors...

AI Technical Summary

Problems solved by technology

For most doctors, closed reduction based 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, domestic and foreign scholars began to study mechanically assisted minimally invasive fracture reduction techniques, and designed and manufactured some experimental femoral shaft fracture reduction mechanical devices, but these mechanical devices required internal nails, interfered with surgical operations, affected intraoperative perspective, Disadvantages such as causing secondary damage to the human body and relatively bulky volume

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