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Radiation therapy device

A technology for radiotherapy and adjustment devices, applied in radiotherapy, treatment, X-ray/γ-ray/particle irradiation therapy, etc.

Active Publication Date: 2020-09-29
NEW JOURNEY MEDICAL ACCELERATOR WUXI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the multi-leaf collimator in the prior art cannot achieve a large dose gradient of the beam outside the target area

Method used

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Embodiment Construction

[0047] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings but not all of them.

[0048] Some orientation words are limited in the present invention, and under the situation of not making contrary description, the orientation words used are as " upper ", " lower ", " left ", " right ", " inner ", " outer " these orientation words It is adopted for easy understanding, and thus does not constitute a limitation to the protection scope of the present invention.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature bein...

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Abstract

The invention relates to the technical field of radiation therapy, and particularly discloses a radiation therapy device. The radiation therapy device comprises a beam generation mechanism, a shield and a multi-leaf collimator; the beam generation mechanism rotates around the fixed axis and generates a ray beam in the rotating process; the shield comprises a plurality of shielding strips arrangedat intervals along a first direction; each two adjacent shielding strips form a grid for the ray beam to pass through; the multi-leaf collimator comprises a plurality of blade pairs sequentially arranged along the first direction; each blade pair comprises two blades arranged along a second direction, and a spacing between the two blades of each blade pair is adjustable so as to form a slit for the ray beam to pass through; the grids correspond to the slits one to one, and the shielding strips can shield part of the slits in the first direction; and the first direction is perpendicular to thesecond direction. According to the radiation therapy device provided by the invention, a dose gradient of the ray beam outside a target region is improved.

Description

technical field [0001] The invention relates to the technical field of radiation therapy, in particular to a radiation therapy device. Background technique [0002] IMRT (intensity-modulated radiation therapy, intensity-modulated radiation therapy, referred to as intensity-modulated therapy) is an advanced high-precision radiation therapy. According to the 3D shape of the tumor, the radiation therapy uses a computer to control the radiation therapy device to emit precise radiation to the target area such as the tumor. X-ray radiation dose, so as to achieve the purpose of treating tumors and other diseases. [0003] The radiotherapy device in the prior art includes a beam generating mechanism and a multi-leaf grating, the beam generating mechanism can generate X-ray beams, the multi-leaf grating includes multiple sets of blades arranged in pairs, and two blades in each pair of blades can interact with each other. Move away or move closer to create slits of different lengths....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/1045
Inventor 陈亮蔡俊罗宇华
Owner NEW JOURNEY MEDICAL ACCELERATOR WUXI CO LTD
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