Patent attributes
A therapeutic apparatus includes an image capturing mechanism and a mechanical arm, and further includes a calibration plate on which a calibration plane is defined. The mechanism includes reference plate and image capturing element with adjustable capturing direction, the capturing element is opposite to and spaced apart from reference plate, and a surface of reference plate facing the capturing element is defined as reference plane. The arm includes a body, a fixed end and an operating end, the fixed and operating ends are located at different positions of the body, respectively, the body is fixed to mounting base through fixed end, the calibration plate is arranged at operating end, and the body is driven to move operating end to a position between capturing element and reference plate such that the calibration plate is parallel to calibration plane and reference plane.