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A medical linear accelerator and its control method

A linear accelerator and linear guide rail technology, which is applied in X-ray/γ-ray/particle irradiation therapy, radiation therapy, treatment, etc., can solve the problems of limited application scenarios, no beam-out therapy, and human psychological impact, so as to achieve convenient use, The effect of simple structure and small volume

Active Publication Date: 2020-09-22
沈阳世联科技有限公司
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  • Description
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AI Technical Summary

Problems solved by technology

Since the treatment couch needs to move during this process, this has two disadvantages: First, the positioning accuracy of the treatment couch is lower than that of other mechanisms. Second, the patient is on the treatment bed. During the treatment process, the treatment bed has to be rotated repeatedly for many times, which will have adverse effects on the comfort of the patient and the treatment accuracy.
However, considering that the mechanical arm may injure the human body or affect human psychology during the movement, it does not have the function of beam therapy during continuous movement, which limits its application scenarios

Method used

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  • A medical linear accelerator and its control method
  • A medical linear accelerator and its control method
  • A medical linear accelerator and its control method

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Embodiment 1

[0055] Such as figure 1 As shown, a medical linear accelerator includes a fixed frame 1, a treatment bed 6 and a rotating device. The fixed frame 1 is provided with an access hole 7 corresponding to the position of the treatment bed 6, wherein the rotating device consists of a rotating frame I2 and The rotating frame II3 is composed of rotating frame I2 and rotating frame II3, which are L-shaped single-arm structures; the end of rotating frame I2 is provided with a central hole that is consistent with the access hole 7, and the axis of the access hole 7 and the rotation The assembly bearing axis of the frame I2 is coaxial with the rotation axis of the rotating frame I2; the rotating frame II3 is connected with the rotating frame I2, and the rotation axes of the rotating frame I2 and the rotating frame II3 are vertically intersected; There is a beam generating device 4 and a beam limiting device 5 on the top, and the free combination of two rotating frames at different angles m...

Embodiment 2

[0058] Except that the rotating frame I2 is a double-arm beam structure, the rotating frame I2 is synchronously driven to rotate through the bearing seats at both ends of the fixed frame 1 and the drive motor; the rotating frame II3 with a rectangular frame structure on the double-arm beam of the rotating frame I2, The rotating frame II3 is synchronously driven and rotated by the bearing housings and the drive motors arranged at both ends of the rotating frame I2, and the rest of the structure is the same as that of the first embodiment. Embodiment 2 On the basis of Embodiment 1, the two rotating racks are configured as a double-arm structure, and its rotation control precision is high, and compared with Embodiment 1, it occupies a larger space.

[0059] Such as figure 2 As shown, the double-arm beam length of the rotating frame I2 is relatively short, thereby saving the overall occupied space. The rotating frame I2 can rotate continuously at 360°, and the rotating angle of t...

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Abstract

The invention relates to a medical linear accelerator. The medical linear accelerator comprises a fixed frame, a treatment bed and a rotation device, an entrance / exit hole corresponding to the position of the treatment bed is arranged in the fixed frame, the rotation device is composed of first and second rotation frames, the end portion of the first rotation frame is provided with a central holein consistent with the entrance / exit hole, and the axis of the entrance / exit hole and the axis of an assembling bearing of the first rotation frame are coaxial with the rotation axis of the first rotation frame; the second rotation frame is connected with the first connection frame, the rotation axis of the first rotation frame is vertically intersected with the rotation axis of the second rotation frame; and the second rotation frame is provided with a beam generation device and a beam limiting device. According to the medical linear accelerator, the treatment bed does not move during work, abeam can be input to the human body at any angle in the 3D space, and the accelerator has an automatic isocenter verification function and an automatic beam verification function.

Description

technical field [0001] The invention relates to a medical linear accelerator and a control method thereof, in particular to a medical linear accelerator based on double rotating racks, which belongs to medical equipment for radiotherapy. Background technique [0002] Radiation therapy is one of the most important treatments for tumors, and the medical linear accelerator is the most widely used device for radiation therapy. [0003] In terms of radiation therapy methods, there are general radiation therapy, intensity-modulated radiation therapy, image-guided radiation therapy, stereotactic radiation therapy and so on. [0004] From a technical point of view, medical electronic medical linear accelerators mainly include the following types: the traditional accelerator represented by the American Varian company Truebeam, its main feature is that the rotating frame is a cantilever beam structure, rotating frame, beam limiting device And the treatment bed can rotate around the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/10
CPCA61N5/1039A61N5/1048A61N5/1077A61N5/1081A61N2005/1092
Inventor 陈亮田新智李鹏孙丽曲通吕博
Owner 沈阳世联科技有限公司
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