Importance

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Abstract

The objective is to obtain a driving type patient platform that can efficiently perform positioning work for making the position and the posture of a diseased site coincide with those established when a treatment plan is generated. There are provided translation units that translate a top board in the X direction, the Y direction, and the Z direction, respectively, in a fixed coordinate system; rotation units that rotate the top board in the θ direction around the X axis, the φ direction around the Y axis, and the ξ direction around the Z axis, respectively; and a control device that controls the translation units and the rotation units, based on an inputted desired rotation center point and an inputted desired rotation angle. The control device is provided with a rotation drive signal generation unit that generates a rotation drive signal for moving the top board in a rotating manner from the reference state “a” of the translation units and the rotation units to a desired rotation angle; and a translation drive signal generation unit that generates a translation drive signal for translating the translation units in such a way that the amount of translation movement, of the desired rotation center point, that is caused by the rotation movement becomes the same as or smaller than a predetermined value.

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First Claim