A Dynamic Acquisition System of Human Bone and Joint Kinematics

Abstract

The invention discloses a human bone and joint kinematics dynamic acquisition system. A Y-axis movable base is arranged on an X-axis movable base, a Z-axis support frame is arranged on the Y-axis movable base, a human body support pedal is arranged on the floor independently, a rotary shaft is arranged on the Z-axis support frame, a first support frame and a second support frame are arranged on the rotary shaft, a first X-ray tube and a first X-ray receiver are arranged on the first support frame, a second X-ray tube and a second X-ray receiver are arranged on the second support frame, a motion capture unit is arranged on an object to be acquired, a motion acquisition device is arranged on the rotary shaft, and a computer controller is arranged independently. The human bone and joint kinematics dynamic acquisition system can ensure that the motion capture unit and the motion acquisition device are relatively stationary and namely ensure that the focal distance of the X-ray tube and the X-ray receiver is not changed. The human bone and joint kinematics dynamic acquisition system can adjust the irradiation angle through the first support frame and the second support frame to ensure optimal irradiation effects.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a dynamic acquisition system for human bone joint kinematics. Background technique [0002] The occurrence and development of bone and joint injuries and diseases are often accompanied by changes in local joint motion characteristics. At the same time, some abnormal joint activities can also lead to diseases. Detecting the kinematic characteristics of the bone and joint system in vivo is of great significance to the scientific research, diagnosis, treatment and prognosis evaluation of diseases. [0003] Optical motion capture and motion sensing are currently widely used kinematic detection methods. However, in these methods, optical markers or physical sensors that capture motion are installed on the surface of the limbs. Due to the large relative movement between the skin and bony structures, the limb movement information obtained by the above methods is no...

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Problems solved by technology

However, in these methods, optical markers or physical sensors that capture motion are installed on the surface of the limbs. Due to the large relative movement between the skin and bony structures, the limb movement information obtained by the above methods is not suitable for accurate research on bone joints. In-body motion, only suitable for gait analysis, human dynamics research, animation production, etc.

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