A radiotherapy position fixer

Abstract

The invention belongs to the technical field of radiotherapy, and specifically relates to a radiotherapy body position fixing frame, which includes a positioning frame, an omentum plate, a reset unit and a posture controller; each time a radiotherapy position is performed, the human body needs to be repeatedly moved and rotated to meet the The positional accuracy required for radiotherapy results in longer time spent on positioning, prolongs the time for the radiotherapist to maintain a fixed posture, and reduces the comfort experience of the radiotherapist; therefore, the present invention cooperates with The monitoring of the angular velocity sensor in the attitude controller can control the operation of the electronically controlled translation table and the electronically controlled slewing frame in real time, so that after the human body posture changes, the radiotherapy operator can minimize the impact on the radiotherapy site and the radiotherapy equipment head when adjusting the body position. The amount of attitude change keeps the attitude change of the radiotherapy part of the human body and the head of the radiotherapy equipment within the range required by the radiotherapy process, ensuring stable radiotherapy and improving the comfort experience of the human body during radiotherapy.

Description

technical field [0001] The invention belongs to the technical field of radiotherapy, in particular to a body position fixer for radiotherapy. Background technique [0002] Radiation therapy is a method of treating tumors by killing cancer cells with ionizing radiation of high-energy rays. The entire process of radiotherapy is irreversible, and the total amount of radiation received by each body part is limited. To achieve accurate irradiation of rays In the tumor lesion area, the patient’s body needs to be fixed as necessary. According to the requirements of the radiotherapy position, on the one hand, the patient needs to use the position auxiliary device to obtain the correct treatment position, and on the other hand, the position is required to remain unchanged during the treatment process, or The position can be repeated each time, preventing the patient from changing the position due to subconscious movements during treatment. [0003] For the discussion on the radiothe...

AI Technical Summary

Problems solved by technology

[0003] For the discussion on the radiotherapy position, please refer to: Zheng Zuan et al., "Discussion on the Concept of Radiotherapy Position Fixation Technology". Structure, the body skin and the tissues and organs in the body have relative motion when they are positioned for radiotherapy, similar to a pocket containing items, and there is relative motion between the pocket and the items when they move. This phenomenon is called "capsular bag effect" "; the body of the human body is similar to a cylinder. When the radiotherapy is set up, because the human body rotates, it will also drive the internal organs to move accordingly. This phenomenon is called the "cylinder effect"; The "capsule effect" and "cylindrical effect" of the human body make the operation complicated during the positioning process, and it is necessary to wait for the fixing materials used to be finalized after a corresponding period of time, and it is difficult to achieve the same accuracy and repeatability as head positioning Therefore, it is necessary to assist certain fixation devices in the process of patient treatment

[0004] According to the different parts of the radiation therapy, different fixation methods and different auxiliary materials are used to fix the patient; the fixation materials include the cushion (vacuum cushion) made of special materials and the fixation film covering the body surface (Body film), etc.; the general principle is that the repeatability of body position fixation is good (because multiple irradiations are required), and the patient's comfort is good (to ensure that the fixation time can be relatively long); each time you set up a position, you need to move and rotate repeatedly The human body satisfies the position accuracy required by radiotherapy, so it takes a long time to set up the position, prolongs the time for the radiotherapist to maintain a fixed posture, and reduces the comfort experience of the radiotherapist

[0005] Therefore, in order to solve the above-mentioned comfort problem affecting the radiotherapy process, the present invention proposes a radiotherapy body position fixer

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