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    • 7. 发明申请
    • 放射治疗装置
    • WO2007022679A1
    • 2007-03-01
    • PCT/CN2006/001539
    • 2006-07-03
    • 惠小兵肖世群黄键
    • 惠小兵肖世群黄键
    • A61N5/01
    • A61N5/1084
    • The invention discloses a radiotherapy device for rotatively focusing gamma radiation beam. The device comprises a frame, a rotary ring fixed on the frame, a source body and a collimator body. The source body and collimator body can rotate around a rotary axis, respectively. A plurality of radiation source is arranged in the source body. Beam channels corresponding to the radiation source are arranged in the collimator body, and the radiation sources focus on the common focus point located on the rotary axis via the beam channels. Two ends of the source body and collimator body are connected to the rotary ring and the frame. The single-layer-two-support structure of the source body and collimator body of the invention enlarges the treating space, reduces the cost and difficulties of manufacture, simplifies the mechanical structure, increases the supporting rigidity of the source body and the collimator body, makes the coaxial rotating of the source body and collimator body durable and stable, ensures the positional precision of the focus center in the therapy device, realizes the precise radiotherapy and improves the result of radiotherapy.