Radiation therapy system

A radiation therapy system, comprising:

• a five-degree-of-freedom O-shaped arm radiation therapy device and a six-degree-of-freedom parallel radiation therapy bed,
• wherein
• the five-degree-of-freedom O-shaped arm radiation therapy device comprises an O-shaped arm movement mechanism, a linear accelerator device, a radiation dose detection device, and a double-X-ray machine image positioning mechanism,
• the O-shaped arm movement mechanism comprises:
• an O-shaped arm;
• an accelerator displacement device for driving the linear accelerator device to displace relatively towards a central position of the O-shaped arm;
• a horizontal longitudinal displacement device comprising a first slide rail and a first slide base disposed at both sides of the O-shaped arm, and a first power unit for driving the first slide base to relatively slide on the first slide rail, two sets of the first slide rails and the first slide bases being provided;
• a horizontal transverse displacement device comprising a second slide rail and a second slide base disposed on the first slide base, and a second power unit for driving the second slide base to relatively slide on the second slide rail, two sets of the second slide rails and the second slide bases being provided, and the slide directions of the second slide bases and the first slide bases being vertical to each other;
• a turning displacement device comprising a third power unit disposed on the second slide bases;
• and
• a rotational displacement device comprising a turning seat disposed at an output end of the third power unit and a fourth power unit, the third power unit being used for turning the rotational displacement device, and a turning plane of the rotational displacement device being vertical to a slide direction of the second slide bases, the O-shaped arm being disposed between two sets of turning seats, and the fourth power unit being used for driving the O-shaped arm to relatively displace on the turning seats;
• the linear accelerator device is mounted on the O-shaped arm by the accelerator displacement device;
• the radiation dose detection device is disposed on the O-shaped arm at a side opposite to the linear accelerator device;
• the double-X-ray machine image positioning mechanism comprises an X-ray transmitter disposed on the O-shaped arm and an X-ray receiver disposed on the O-shaped arm at a side opposite to the X-ray transmitter, two sets of the X-ray transmitters and the X-ray receivers being provided;
• and
• the six-degree-of-freedom parallel radiation therapy bed comprises:
• a base assembly comprising a base, a plurality of sliding rails disposed on the base side by side, and a power unit fixed to the base;
• a connecting rod assembly comprising a sliding base which is driven by the power unit to relatively slide on the sliding rails and a connecting rod, a bottom end of the connecting rod being rotatably connected with the sliding base;
• and
• a bed plate assembly comprising a main bed plate, a top end of the connecting rod being rotatably connected with the main bed plate.