Safe radioactive box and multi-source concentric radiotherapy machine

Abstract

The invention relates to the field of medical equipment and provides a safe radioactive box. The safe radioactive box comprises a lower encapsulating board body, a safe radioactive box body, a radioactive hole open / close door movable cavity encapsulating block and a radioactive hole open / close door push-pull rod, wherein the lower encapsulating board body and the safe radioactive box body are fixedly connected, the radioactive hole open / close door movable cavity encapsulating block is arranged on the lower encapsulating board body and the side surface of the safe radioactive box body, and the radioactive hole open / close door push-pull rod penetrates through the radioactive hole open / close door movable cavity encapsulating block; a radioactive source cavity is arranged in the safe radioactive box body, and a radioactive source is arranged in the radioactive source cavity through a radioactive source fixing conical screw tube; a radioactive hole open / close door movable cavity is arranged below the radioactive source cavity, a radioactive hole open / close door is movably arranged in the radioactive hole open / close door movable cavity, the radioactive hole open / close door is connected with the radioactive hole open / close door push-pull rod, and the radioactive hole open / close door can be driven by the radioactive hole open / close door push-pull rod to move left and right in the radioactive hole open / close door movable cavity; radioactive holes are formed in the lower encapsulating board body. The invention further provides a multi-source concentric radiotherapy machine. The safe radioactive boxes are co-centrally distributed in the cavity of the radiotherapy machine to carry out concentric radiotherapy.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a low-cost, easy-to-maintain safety radiation box and a multi-source concentric radiation therapy machine. Background technique [0002] Malignant tumors are one of the main causes of death among Chinese residents. At present, there is no effective treatment for malignant tumors. Radiation therapy (the main development is shape-conformal and dose-conformal, that is, intensity-modulated radiotherapy), chemical drug therapy and surgical treatment are the three major means of treating tumors at this stage. About 70% of cancer patients require radiation therapy. [0003] The existing precise radiotherapy system is mainly composed of two parts: one part is the radiation generation system, such as the American Varian 23EX linear accelerator system, and the other part is the lesion shape acquisition system (dual-source spiral CT, whole body magnetic resonance imaging), Conformal desig...

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Problems solved by technology

[0004] However, since the radiation generation system of the current precision radiation therapy system generally uses a linear accelerator system, the market price is more than 10 million yuan, which is extremely expensive, the maintenance and application costs are high, and the production and manufacturing technology is complicated, which greatly restricts its application. range and greatly increase the financial burden on patients

At present, my country cannot design and produce related products in China, and relies entirely on imports; at the same time, there is no research on related equipment that is cheap and low in maintenance and use costs at home and abroad.

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