Two-dimensional code type compensator interlocking device adaptive to medical accelerator

Abstract

The invention provides a two-dimensional code type compensator interlocking device adaptive to a medical accelerator, which consists of a servo component, a scanning component and a compensator component, and is adaptive to an existing medical linear accelerator for use. The reduction of the gap between the compensator and the target region is beneficial to uniform distribution of the dose in the target region, the center of the compensator, the center of the radiation field and the recording center are overlapped, the ultimate target of the compensator in the radiation field is ensured, signal transmission depends on a wired circuit, the anti-interference capability in a radiation environment is improved, and potential loopholes in the use of the compensator are solved. Manual supervision is changed into machine automation and manual rechecking, so that the threshold value of radiotherapy safety is improved, and the working pressure of radiotherapy technicians is relieved; the implementation of the individualized compensator reduces nosocomial infection, and the compensator made of the thermoplastic material is more excellent in attaching property and flowability, so that no gap exists in contact between the compensator and the skin, and dosage optimization is facilitated. The device is reasonable in design, simple and easy to operate, and suitable for clinical popularization and application of radiotherapy.

Description

technical field [0001] The invention belongs to the field of medical equipment, and relates to a two-dimensional code type compensator interlocking device suitable for medical accelerators, which is a safety interlock device suitable for tissue compensators on the derrick type head of current medical electronic linear accelerators. Locking device for patients who routinely need to cover post-compensator radiotherapy. Background technique [0002] Medical Electron Linear Accelerator: Medical Electron Linear Accelerator for short, Medical Electron Linear Accelerator refers to an electron acceleration device that uses microwave electromagnetic fields to accelerate electrons and has a linear motion trajectory. The machine can generate high-energy rays (electron rays and X-rays). A large medical device used for radiation therapy of a patient's tumor or other lesions. [0003] Linear accelerator head: It is the general name of the window for emitting rays of the medical electron ...

AI Technical Summary

Problems solved by technology

If the compensator is not placed or disengaged, the machine cannot automatically stop the treatment, and this will cause a series of problems as follows: (1) Reusing the same compensator: the risk of community infection increases; (2) It cannot be included as a parameter "Treatment plan.plan": The radiotherapy technician is under a lot of pressure to review, and the risk of compensator forgetting increases; (3) The interlock device is missing after the compensator moves and slips: during the beam output process, due to involuntary factors of the patient (mostly physiological actions, such as : Breathing, coughing, etc.) caused the event that the compensator moved and slipped from the irradiation area, and the radiotherapy technician did not dispose of it in time (shutdown), etc., resulting in a radiation accident; (4) Uneven distribution of the dose curve: due to the fit of the compensator, Inhomogeneous dose distribution within the irradiated area

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