PROBLEM TO BE SOLVED: To provide a drive type patient platform allowing efficient positioning work for performing positioning to a position settled in time of treatment planning.SOLUTION: A drive type patient platform includes: translation means 3, 4, 5 each translating a top plate 8 in each axial direction of an X-axis, a Y-axis, and a Z-axis to a fixed coordinate system 10 rotation means 6, 7, 8 rotating the top plate 8 in each direction of a θ direction, a φ direction, and a ξ direction around each axis and a controller controlling the translation means 3, 4, 5 and the rotation means 6, 7, 8 on the basis of an inputted desired rotation center point P. The controller has: a patient platform operation terminal 30 a rotation drive signal generation means generating a rotation drive signal for rotationally moving the top plate 8 from a reference state a of the translation means 3, 4, 5 and the rotation means 6, 7, 8 by operation of the patient platform operation terminal 30 and a translation drive signal generation means generating translation drive signals for translating the translation means 3, 4, 5 such that a translation movement amount of the desired rotation center point P generated by the rotational movement becomes a prescribed value or below.COPYRIGHT: (C)2014,JPO&INPIT【課題】治療計画時に策定した位置に合わせる位置決め作業を効率的に行うことができる駆動式患者台を得ることを目的とする。【解決手段】固定座標系10に対して、X軸、Y軸、Z軸の各軸方向に天板8を並進させる並進手段3、4、5と、各軸周りのθ方向、φ方向、ξ方向の各方向に天板8を回転させる回転手段6、7、8と、入力された希望回転中心点Pに基づいて並進手段3、4、5及び回転手段6、7、8を制御する制御装置とを備え、制御装置は、患者台操作端末30と、並進手段3、4、5と回転手段6、7、8の基準状態aから、患者台操作端末30の操作により天板8を回転移動させる回転駆動信号を生成する回転駆動信号生成手段と、回転移動によって生ずる希望回転中心点Pの並進移動量が所定値以下となるように並進手段3、4、5を並進させる並進駆動信号を生成する並進駆動信号生成手段とを有した。【選択図】図1
