Radiation therapy system

A radiation therapy and treatment bed technology, applied in radiation therapy, therapy, X-ray/γ-ray/particle irradiation therapy, etc., can solve problems affecting imaging and tracking, intensity reduction, normal tissue damage, etc., to improve load capacity , reduce mechanical error, improve the effect of coke-to-skin ratio

CN105920745AActive Publication Date: 2016-09-07SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-09-07

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Abstract

The invention provides a radiation therapy system which comprises a radiation source, a bracket, two X-ray bulb tubes, two detectors, a couch and a top plate. The top plate is fixedly connected with a ceiling and is provided with a circular guide groove A. The upper part of the bracket is connected with the inside circular guide groove A through a slider, and can rotate along the circular guide groove A. The bracket is provided with an arc-shaped guide groove A with a downward opening. The system further comprises a telescopic device. The upper end of the telescopic device is connected with the inside arc-shaped guide groove A. The lower end is fixedly connected with a radiation source. The X-ray bulb tubes are fixedly connected with the bracket and can rotate with the bracket. Two X-ray bulb tubes and a radiation therapy isocenter are in the same vertical plane. The detectors are located underneath the couch, and can synchronously rotate on a horizontal plane with the rotation of the X-ray bulb tubes. The radiation therapy system provided by the invention has the advantages of simple structure, easy control, wide range of non-coplanar radiation therapy and small radiation attenuation. Rays emitted by an image guide device are not blocked.
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Description

technical field

[0001] The invention relates to a radiotherapy medical device, in particular to a radiotherapy system. Background technique

[0002] The latest data show that cancer has been called a major killer of human health. Radiation therapy (hereinafter referred to as radiotherapy), as an important means of treating cancer, has been developed continuously and rapidly, and various radiotherapy equipments have appeared accordingly. However, most of the current radiotherapy equipment has defects such as complex structure and small range of non-coplanar radiotherapy.

[0003] The Cyberknife system developed by Accurary Corporation of the United States is a major advancement in radiotherapy equipment. The system uses two sets of X-ray tubes and detectors to form an image guidance device to obtain the position of the target area, so as to track the target area during radiotherapy. The electronic linear accelerator is installed on the manipulator, and the manipulator drive...

Examples

Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as figure 1 with figure 2 As shown, a radiotherapy system includes a radiation source 1, a bracket 2 for fixing the radiation source 1, two X-ray tubes 3, two detectors 4 corresponding to the X-ray tubes 3, and a treatment couch 5, It also includes a top plate 6, which is fixedly connected with the ceiling. The bracket 2 is provided with an arc-shaped guide groove A7 opening downward. Also includes a telescopic device 8, the upper end of the telescopic device 8 is connected to the arc-shaped guide groove A7, and the lower end is fixedly connected with the radiation source 1. The radial movement of the shaped track A7, the telescopic device here adopts a hydraulic cylinder, of course, it can also use a ball screw or a pneumatic cylinder, etc. According to the difference in fat and thinness of different patients, in the ...