Laser-Marker Radiotherapy Positioning for Precise Irradiation
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Solution Overview
Problem
Conventional radiotherapy systems face challenges in accurately positioning patients during treatment, leading to inadequate doses for tumor regions and excessive exposure of surrounding normal tissues, with manual intervention being inevitable and posing risks to on-site workers.
Innovation Solution
An automatic positioning system for radiotherapy, incorporating image acquisition, placement, treatment planning, and laser positioning modules, which uses markers and laser devices to calculate and adjust the irradiation position based on treatment plans, ensuring precise patient positioning and reducing manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual positioning is used during radiotherapy implementation, then the system is simpler to operate, but positioning accuracy deteriorates and radiation exposure to workers increases
Solution Approach 1:
The treatment planning system pre-calculates the optimal patient position and irradiation parameters before therapy implementation. The positioning system then automatically executes this pre-determined plan, eliminating the need for manual positioning decisions during treatment and ensuring consistent accuracy.
Solution Approach 2:
A computer control system acts as an intermediary between the treatment plan and the positioning mechanism. The system receives the treatment plan, processes it through the positioning module, and automatically adjusts the patient position according to pre-calculated parameters, removing human intervention from the positioning process.
2Productivity
If manual positioning is used during radiotherapy, then device complexity is reduced, but productivity and positioning efficiency deteriorate
Solution Approach 1:
The positioning system is self-regulating and automatically adjusts patient position based on pre-calculated treatment plan parameters. The system monitors its own positioning accuracy and makes real-time adjustments without requiring operator intervention, thereby improving efficiency while maintaining manageable complexity through automation.
Solution Approach 2:
Manual mechanical positioning operations are replaced with an automated computer-controlled positioning system. The system uses electronic control signals to drive positioning mechanisms, replacing manual mechanical adjustments with automated electronic-mechanical integration, thereby improving efficiency.
3Object-affected harmful factors
If manual positioning is used, then ease of operation is improved, but harmful radiation exposure to workers increases
Solution Approach 1:
The hazardous positioning task is extracted from the human operator and transferred to the automated positioning system. The computer control system performs all positioning operations remotely or automatically, removing human workers from the immediate treatment area and eliminating their radiation exposure while maintaining operational capability.
Solution Approach 2:
The computer control system serves as an intermediary that handles all radiation-related positioning operations. Workers interact with the system through control interfaces rather than directly positioning patients during irradiation, using the computer as a mediator to eliminate direct radiation exposure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enhances positioning accuracy and efficiency, minimizing radiation exposure to normal tissues and workers, while ensuring accurate delivery of treatment doses to tumor regions.
Implementation Method 1
at least two laser positioning devices... each laser positioning device includes a plurality of laser emitters
Data Source
AI summary
A radiotherapy system, comprises an image acquisition module, a placement module used for placing an irradiated body, a treatment planning module used for formulating a treatment plan, a radioactive ray generation module used for generating radioactive rays, and a positioning module used for realizing automatic positioning of the placement module. The positioning module calculates an irradiation position of the placement module on the basis of the treatment plan generated by the treatment planning module.