A six-degree-of-freedom serial-parallel pelvic fracture reduction robot

Abstract

The invention provides a six-degree-of-freedom series- reduction robot for fracture of pelvis. The six-degree-of-freedom series- reduction robot comprises a chassis assembly, a serial-connection platform assembly, a series- connection assembly, a parallel-connection platform assembly and an outer fixing frame assembly, wherein the chassis assembly is arranged at the bottom end of the robot and in contact with the ground through four universal wheels; the serial-connection platform assembly is positioned above the chassis assembly and fixedly connected with the chassis assembly; the outer fixing frame assembly is connected with the parallel-connection platform assembly and integrally connected with the series-connection platform assembly through the series-parallel connection assembly. The robot can replace a doctor to perform the reduction of fracture of pelvis, so that the labor intensity of the doctors can be reduced; the series-parallel platform assembly is a three-degree-of-freedom linear moving mechanism and the parallel-connection platform assembly is a three-degree-of-freedom rotary moving mechanism, and the series-parallel connection mechanism formed by combining the two mechanisms can perform six-degree-of-freedom movement; the robot has the advantages of being high in precision, high in loading capacity and rigidity, reasonable in working space, and compact in structure.

Description

technical field [0001] The invention relates to a six-degree-of-freedom series-parallel pelvic fracture reduction robot, which belongs to the field of surgical medical instruments. Background technique [0002] Pelvic fracture is a serious trauma with a high fatality rate, and it is more common in disasters such as earthquakes and car accidents. In the traditional pelvic reset method, multiple X-rays are taken during the operation to determine the reset path. The doctor and the patient receive a large amount of radiation, and the doctor cannot grasp the accurate fracture status information through the two-dimensional image, which brings difficulties to the path planning; When an unstable fracture occurs, an open reduction operation is required, which causes great trauma to the patient, and the doctor's operation is intensive, which can easily cause poor reduction. In the current research, there are many research results on the pelvic fracture reduction mechanism at home and...

AI Technical Summary

Problems solved by technology

However, most institutions can only perform pelvic repositioning by doctors with hand-held assistance, and cannot complete pelvic repositioning on their own initiative. It can be concluded that the current research results still have problems such as lack of pertinence and operability.

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