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Radiotherapy device guided by MRI

A technology of radiotherapy and rays, which is applied in the field of medical devices, can solve the problems of low focal skin and patient tissue damage, and achieve the effect of high focal skin ratio, small patient damage, and high soft tissue contrast

Inactive Publication Date: 2017-07-25
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the current magnetic resonance image-guided radiation therapy systems basically belong to isocenter coplanar therapy, with a relatively low focal skin, which causes great damage to the patient's normal tissue while killing tumor cells.

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  • Radiotherapy device guided by MRI
  • Radiotherapy device guided by MRI

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Embodiment Construction

[0018] Such as figure 1 As shown, an MRI-guided radiotherapy device includes a magnetic resonance imaging device and a linear accelerator 2, the main magnet of the magnetic resonance imaging device is a cylindrical magnet 4, and the middle part of the cylindrical magnet 4 is provided with a vertical In the gap 5 of the axis, the linear accelerator emits X-rays and shoots to the isocenter 9 through the gap, and the cylindrical magnet 4 can rotate around the axis B-B perpendicular to the ground and passing through the isocenter 9; the linear accelerator 2 is installed On the robot 1, the robot 1 carries the linear accelerator 2 to move, so that the rays emitted by the linear accelerator 2 can shoot from the gap 5 to the isocenter 9 of radiotherapy at any time.

[0019] Because the X-band linear accelerator is small in size and light in weight, it is easy to be grasped by the robot 1, so the X-band linear accelerator is selected here. The rays emitted by the linear accelerator 1...

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Abstract

The invention provides a radiotherapy device guided by MRI. The radiotherapy device comprises an MRI device and a linear accelerator, a main magnet of the MRI device is a cylindrical cylinder, a slit vertical to the axis is formed in the middle portion of the cylindrical magnet, and X rays emitted by the linear accelerator are irradiated to the isocenter by penetrating the slit. The radiotherapy device is characterized in that the cylindrical magnet can rotate around the axis which is vertical to the ground and passes the isocenter, the linear accelerator is mounted in a robot, the robot carries the linear accelerator to move, and the rays emitted by the linear accelerometer can be irradiated to the isocenter by penetrating the slit at any time. The radiotherapy device is high in dose ratio, can realize isocenter non-coplanar treatment for patients, and reduces damage on the patients.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an MRI-guided radiotherapy device. Background technique [0002] In the current radiation therapy, most of the widely used image-guided technologies use X-rays for image guidance, which will cause patients to receive more extra X-ray doses and cause greater harm to patients. Magnetic resonance imaging guidance technology has been valued and developed by virtue of the advantage of not causing additional damage to the human body. [0003] In addition, isocenter non-coplanar therapy has become an important development trend, which can make the patient receive a higher radiation dose in the target area, while the radiation dose received by the surrounding normal tissues is lower, so as to protect the normal tissues of the human body as much as possible . [0004] However, the current magnetic resonance image-guided radiation therapy systems basically belong to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/1083A61N5/1045A61N2005/1055A61N2005/1092A61N2005/1094A61N2005/1097
Inventor 汤卿熊瑞平黄春强姚进吴大可
Owner SICHUAN UNIV
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