Long bone fracture traction reduction navigation apparatus

Abstract

The invention discloses a fracture traction reduction guiding device of a long bone. The device comprises a driving mechanical arm, a driven mechanical arm, a photoelectric tracer, an end effector, a trolley, a tracking mark component and a spatial point acquisition unit. The tracking mark component is installed on the fracture position of the long bone. The spatial point acquisition unit is held by a doctor. A prop A of the driving mechanical arm and a prop B of the driven mechanical arm are installed on the upper panel of the shell of the trolley respectively. The photoelectric tracer is installed on the end cover of a rocker A of the driving mechanical arm. The end effector is installed on the end cover of a rocker B of the driven mechanical arm. A computer system is arranged in the wagon box of the trolley. The driving mechanical arm has the same structure with the driven mechanical arm. The fracture traction resetting guiding device of the long bone can assist the doctor to finish the reduction operation of 3D geometry of a wounded limb and the mechanical arm is used for fixing the distant end of the wounded limb to improve the accuracy of reduction and to reduce the radiation of X-ray. The tracking mark component is arranged on the fractured bone that needs to be operated, so the position of a characteristic point marked by the tracking mark component is easier to be tracked by the photoelectric tracer.

Description

technical field [0001] The present invention relates to an orthopedic navigation device, more particularly, refers to a traction reset navigation device that utilizes photoelectric tracking technology and uses two mechanical arms to assist doctors to complete fractures of long bones (such as femur and shank). Background technique [0002] The main process of long bone fractures includes traction reduction and fixation. Traction reduction is the first problem that doctors must solve during surgery, which is to splice the fractured parts together and restore them to their original geometric shape. Due to the complex shape of long bones, doctors use the two-dimensional X-ray images and experience during the operation to complete the reduction operation in the traditional traction reduction operation. This kind of reduction operation is often only performed in two-dimensional space, and it is difficult to achieve three-dimensional Geometry reduction, and the doctor will suffer a...

AI Technical Summary

Problems solved by technology

Due to the complex shape of long bones, doctors use the two-dimensional X-ray images and experience during the operation to complete the reduction operation in the traditional traction reduction operation. This kind of reduction operation is often only performed in two-dimensional space, and it is difficult to achieve three-dimensional Geometry reduction, and the doctor will suffer a lot of radiation damage in the process of using X-ray reduction

At the same time, since there is no reliable instrument to fix the result of reduction after reduction, the fractured bone after reduction will often be displaced during the fixation stage, which affects the surgical effect

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