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A medical radiation source device

A radioactive source and source storage technology, which is applied in the field of medical radioactive source devices, can solve problems such as refractory treatment and healthy tissue protection, and achieve the effect of enhancing controllability and realizing protection

Active Publication Date: 2016-07-06
WUHAN XINAOWO MEDICAL NEW TECH
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Problems solved by technology

[0004] Although the above-mentioned patent has improved the flexibility of radiation dose adjustment compared with the previous technology, the irradiation direction of the radiation source has not changed during the process of adjusting the radiation dose. The common focal point is the target point. Since the radioactive intensity of the radiation source along its irradiation direction is the highest, the human tissues at the target point, including the lesion tissue, receive continuous high-dose irradiation during the treatment process. It is difficult for this irradiation method to best protect healthy tissues while treating diseased tissues

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] Such as figure 1 As shown, the outer shielding body 1 is the main shielding body containing the periphery of the radioactive source body 2 , and its main function is to safely shield the cobalt 60-γ rays emitted by the radioactive source 3 .

[0035] The radioactive source body 2 is a cylindrical or conical hollow structure, and the radioactive source body 2 is provided with N groups of mounting holes uniformly distributed on the circumference, and the source body 4 is installed in the mounting holes, and the front and rear ends of the radioactive source body 2 are Supported by bearings, the rear end of the radioactive source body 2 is provided with a radioactive source body driving mechanism that drives the radioactive source body 2 to rotate, so that the radioactive source body 2 can be rotated according to the set speed to achieve multi-point continuous rad...

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Abstract

The invention relates to a medical radioactive source device. The medical radioactive source device comprises a radioactive source body and a collimation body. A radioactive source hole is formed in the radioactive source body. A collimator with a collimation hole is arranged in the collimation body. The medical radioactive source device further comprises a source storage body arranged in the radioactive source body. The source storage body and the radioactive source body are in rotating fit. A radioactive source is fixedly arranged in the source storage body. The irradiation direction of radioactive source rays penetrates through a pre-collimation hole in the source storage body, the radioactive source hole in the radioactive source body and the collimation hole in the collimation body and faces the common focus of all the rays. The medical radioactive source device further comprises a source storage body driving mechanism driving the source storage body rotate around the axis of the source storage body. According to the medical radioactive source device, the important organs of a patient can be safely and effectively protected against radiation damage caused by the rays under treatment, the radiation quantity can be flexibly and rapidly adjusted, and the shape of an irradiation target spot can be flexibility and rapidly changed so that damage to healthy tissue of the patient is reduced.

Description

technical field [0001] The invention relates to a medical radiation source device. Background technique [0002] A general medical radiotherapy device is mainly composed of a radiation source body, a switch body and a final collimation body, wherein the switch body is a whole, and the middle collimation hole on the radiation source body deviates from the pre-collimation hole on the radiation source body by shifting , resulting in a switching radioactive source. When this structure is opened, all radiation channels will be opened, and when it is closed, all radiation channels will be closed, which is not conducive to flexible adjustment of the radiation dose of the lesion. [0003] Chinese patent CN101156980A discloses a structure of a medical radiotherapy device. The device structure is equipped with a radioactive source hole and a pre-alignment hole on the radioactive source body, and a radioactive source is housed in the radioactive source hole; the switch body is several...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/00
Inventor 吕风华杨劲松李宜
Owner WUHAN XINAOWO MEDICAL NEW TECH
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