Lump movement following protective cover system for lung cancer radiotherapy

Abstract

The invention provides a lump movement following protective cover system for lung cancer radiotherapy. The lump movement following protective cover system for the lung cancer radiotherapy comprises a data processor, a breathing detector, a radioactive source detector, a movement following protective cover and a protective cover controller, wherein the movement following protective cover is used for being placed on the top of a treatment table of an existing radiotherapy device, and a blocking cover is arranged on the movement following protective cover. According to the implementation of a first blocking cover, the first blocking cover can move around the movement following protective cover along with a radioactive source, and blades of the first blocking cover can be changed according to outlines of tumors on different parts. According to the implementation of a second blocking cover, the fact that the radioactive source carries out one time of radiation in an equal angle interval mode is taken into consideration, namely, all the needed blocking outlines and all the needed thicknesses of the second blocking cover are made in a customization mode according to a preset angle and ray intensity. The protective cover controller is connected with the data processor and the movement following protective cover, and is used for receiving a movement control instruction sent out by the data processor, and controlling the movement following protective cover to move along with breathing. The lump movement following protective cover system for the lung cancer radiotherapy can move along with movement of a tumor lump from multiple dimensions, and achieve accurate blocking of rays around the tumor lump.

Description

technical field [0001] The invention belongs to the field of medical equipment auxiliary treatment equipment, and in particular relates to a lung cancer radiotherapy mass movement following shield system. Background technique [0002] In the process of radiotherapy for lung cancer, the tumor movement caused by the patient's breathing will have a great impact on radiotherapy. There are currently three main solutions to this effect. The first method is to expand the radiotherapy target volume to fully cover the moving tumor. Using this method, more normal tissues of the patient will be exposed to radiation. The second method is the gated radiotherapy technique, which only performs radiotherapy to the tumor area during the patient's breath-holding or end-inspiration period, thus reducing the influence of tumor movement to a certain extent, such as the name "Method and system for physiological gating of Radiation therapy” (US6690965B1) US patent document, through the optical o...

AI Technical Summary

Problems solved by technology

Existing IGRT equipment can reduce the influence of respiratory movement on radiotherapy to a certain extent, but these IGRT equipment are expensive, 2 to 3 times the price of traditional radiotherapy equipment. Currently, only a few hospitals are equipped with IGRT equipment. , most hospitals will continue to use traditional equipment and methods to treat patients with radiotherapy, even if some hospitals are equipped with IGRT equipment, they will also use traditional radiotherapy equipment

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