Penta-shaft linkage precise digit control radiotherapy device

五轴联动精密数控放射治疗装置

Abstract

The utility model discloses a penta-shaft linkage precise digit control radiotherapy device, comprising a C-shaped radiation source frame whose upper end is provided with a treatment head; pulleys are driven by an electrical machine for causing the radiotherapy head to conduct the B shaft rotation; the bottom face of the head frame is arranged on the rotary table of a front bed body, and the electrical machine drives the head frame to conduct the C shaft rotation via worm gears; the electrical machine drives the pulley and a lead screw to implement the X direction movement of the rotary table on the front bed body; the electrical machine drives the pulley and the lead screw to implement the Y direction movement of the radiotherapy bed on the bed body; the electrical machine can implement the Z direction lifting of the bed body on a bottom base. The penta shafts are controlled by a computer to surround the focus of the radiation source to make the penta-shaft linkage composite motion. When the patient is on proper position, the utility model can conduct the radiotherapy irradiation for the patient from multiple directions. The treating space is the full open type. The utility model is similar to a robot with the precision assembly and a horizontal machining center, and has enough accuracy and rigidity to drive radiation source with 1300kg to move; the utility model can conduct direct programming and can implement the open type treatment by using an equal center point to find the focus.
本实用新型公开了一种五轴联动精密数控放射治疗装置。包括:“C”形放射源头架上端装有治疗头,电机带动带轮使治疗头作B轴回转;头架底面装在前床身的转台上,电机经蜗轮副带动头架作C轴回转;电机带动带轮、丝杆实现转台在前床身上的X向移动;电机带动带轮、丝杆实现治疗床在床体上的Y向移动;电机通过带轮、丝杆实现床体在底座上的Z向升降。五轴由计算机控制围绕放射源的焦点作五轴联动的复合运动,病人到位分别进行向下、向上、向后、向右、向左的放射治疗照射,治疗空间全开放式。本实用新型更接近于精密装配的机器人,也类似于卧式加工中心,有足够的精度和刚性带动1300kg的放射源运动,还可直接编程,实现用等中心点找病灶的开放式治疗。

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