Fluorescent induction type automatic lead blocking device for breast cancer electronbeam radiotherapy field

Abstract

The invention provides a fluorescent induction type automatic lead blocking device for breast cancer electronbeam radiotherapy field. The device comprises clamping protrusions, four supporting feet, two sheet blocking assemblies, four corner connectors, two multi-finger assemblies and a light limiting tube. The boundary recognition capability of artificial naked eyes is successfully converted intoautomatic electronic recognition capability; an irregular field hollow shape can be achieved by two non-coplanar light blocking assemblies; working pressure of radiotherapy technicians is effectivelyreduced by the automatic electronic identification function; the mechanical device is reliable in operation and environmentally friendly; during use, the whole operation process is simple and feasible, and the device is suitable for popularization and application in clinical treatment of electron beam radiation on the body surface. The device has the advantages of reasonable design, convenient manufacture and high practicability, and is suitable for electron irradiation of chest walls of patients.

Description

technical field [0001] The invention belongs to radiation therapy auxiliary equipment, and relates to a fluorescent induction type breast cancer electron beam radiotherapy field automatic lead blocking device, which is suitable for electron beam irradiation of breast cancer patient's chest wall. Background technique [0002] Color recognition sensor: also known as color mark sensor. Basic principle: The sensor emits light (red, green, blue) on the object to be inspected, calculates the color composition according to the reflected light, and then compares it with the stored reference color value. If the value of the color corresponds to the set color band range, a switching output is activated. Some high-sensitivity sensors can also detect colors with subtle differences in background colors, and the processing speed is fast. Adapts automatically to the wavelength and is able to detect small differences in gray value regardless of the mixed color of the label and background....

AI Technical Summary

Problems solved by technology

Defects include: (1) The disadvantages caused by the body surface covered with lead skin: the lead skin slips during the irradiation process, causing radiotherapy accidents that damage normal tissues; (2) The lead skin placed on the platform ring slips during the irradiation process, causing Radiotherapy accidents of normal tissue damage; the accuracy of the shape of the irregular field depends on the shape and specification of the lead block; (3) The shape of the irregular field is a test of the technician's operating level and professional ethics, and more blocks and less blocks are not effective Monitoring; (4) The number of times of irradiation determines the number of splicing, which is time-consuming and laborious, and the speed of forming irregular fields depends on the proficiency of the technician

The defects are as follows: (1) The process is cumbersome, and it is necessary to make a male and female mold lead block; (2) Lead vapor is easily volatile during casting of low melting point lead, polluting the environment, and the operator needs to do a good job of self-protection; (3) Every time it is used Low melting point lead is easy to precipitate during the process, and patients are prone to heavy metal poisoning; (4) The implementation of treatment depends entirely on the technician's operating level and professional ethics, and lacks relevant mechanical chain constraints

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