Anti-collision method and anti-collision device for C-shaped arm X-ray machine as well as C-shaped arm X-ray machine

Abstract

The invention discloses a C-shaped arm X-ray machine as well as an anti-collision device and an anti-collision method for the C-shaped arm X-ray machine, wherein the anti-collision device comprises a storage unit, a position detecting unit, a current detecting unit and a control unit, wherein the storage unit is used for storing a reference signal value tablet of motor driver work current corresponding to the moving position and the moving direction of a C-shaped arm when no collision occurs, the position detecting unit is used for determining the current moving position of the C-shaped arm, the current detecting unit is used for detecting the corresponding current work current of a motor driver and obtains the corresponding detection signal value, and the control unit is used for determining the current moving direction of the C-shaped arm and the corresponding detection signal value, finding the reference signal value corresponding to the current moving direction and the moving position from the reference signal value table, comparing the detection signal value to the reference signal value, and determining the collision occurrence when the detection signal value deviates from the set value of the reference signal value. Through the technical scheme of the C-shaped arm X-ray machine, the anti-collision device and the anti-collision method disclosed by the invention, the serious collision between an obstacle and the C-shaped arm per se can be prevented.

Description

technical field [0001] The invention relates to the field of X-ray imaging systems, in particular to an anti-collision method and anti-collision device for a C-arm X-ray machine, and a corresponding C-arm X-ray machine. Background technique [0002] As a medical instrument, C-arm X-ray machine has been widely used in the medical field. In the C-arm X-ray machine, the X-ray source and the X-ray receiver are oppositely installed on a C-arm, so that the X-rays generated by the X-ray source are incident on the X-ray receiver and detected by it. [0003] When performing X-ray inspection, the object to be inspected, such as a human body, is placed between the X-ray source and the X-ray receiver. By changing the position and angle of the C-arm, the X-ray source, the X-ray receiver and the object to be inspected are changed. The relative position between them, so that the X-ray machine can perform X-ray inspection on the detected object from multiple different positions and angles,...

AI Technical Summary

Problems solved by technology

[0005] Since the C-arm 101 has multiple degrees of freedom of motion, sometimes the C-arm 101 may come into contact with the patient, medical staff, or gurney due to reasons such as personnel not paying attention to the movement of the C-arm 101 or the C-arm 101 being misoperated. or other obstacles, which may cause injury to personnel on the one hand, and damage to the C-arm 101 or obstacles on the other hand

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