Radiotherapy Collimator Focus Extraction for Sensitive Tissue Protection
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Solution Overview
Problem
Current radiotherapy devices for treating head tumors face challenges in precisely targeting the tumor while avoiding sensitive tissues like the eyes, as the common focus is often located within the radiation source apparatus, making it difficult to monitor patient movement and protect sensitive organs during treatment.
Innovation Solution
A radiotherapy device with a radiation source apparatus featuring a plurality of radiation sources and a collimator, where the source points are within a preset included angle range, allowing for precise alignment and shielding of radiation beams to intersect at a common focus outside the radiation source apparatus, enabling real-time monitoring and protection of sensitive tissues through an imaging apparatus and shielding mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the common focus is located within the radiation source apparatus, then the radiation beams can be concentrated effectively, but it becomes difficult to monitor patient movement and protect sensitive organs during treatment
Solution Approach 1:
The patent extracts the common focus from within the radiation source apparatus and relocates it to a position outside the apparatus. This is achieved by arranging multiple radiation sources and their corresponding collimators such that their beams converge at a focal point that is spatially separated from the source apparatus structure, enabling independent monitoring and protection of sensitive organs
2Area of stationary object
If multiple radiation sources are used to treat head tumors, then the radiation coverage is improved, but it becomes difficult to avoid sensitive tissues like the eyes
Solution Approach 1:
The patent divides the radiation delivery system into multiple independent source-collimator units, each capable of being individually controlled and directed at different angles. This segmentation allows the radiation to cover a broader area while enabling selective shielding of sensitive tissues through independent control of each radiation path
Solution Approach 2:
The patent applies different properties to different parts of the radiation system by equipping each radiation source with its own collimator that can be independently adjusted. This allows local optimization where radiation can be concentrated on the tumor while simultaneously protecting specific sensitive areas through localized collimator positioning and shielding
3Area of stationary object
If the radiation sources are arranged in a wide angular distribution, then the treatment coverage is enhanced, but the precision of targeting the tumor focus is reduced
Solution Approach 1:
The patent implements dynamic adjustability in the collimator system, allowing the collimators to be positioned and oriented dynamically to maintain precise focusing despite the wide angular distribution of radiation sources. This dynamic control enables the system to adapt to different treatment requirements while maintaining both wide coverage and high precision
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
This configuration allows for precise targeting of tumors while protecting sensitive tissues by ensuring radiation beams intersect at a common focus outside the radiation source apparatus, enabling effective treatment and minimizing damage to sensitive organs during head tumor radiotherapy.
Implementation Method 1
The collimator is provided with a plurality of collimating hole groups, and an included angle of each of the collimating hole groups in the longitude direction is within the preset included angle range; and each of the collimating hole groups includes a plurality of collimating holes, and radiation beams emitted from the plurality of radiation sources intersect at a common focus after passing through the collimating holes of the collimator
Data Source
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AI summary
The present disclosure provides a radiotherapy device, a control driving method, a control driving device, and a control driving system, and belongs to the field of medical technologies. A radiotherapy device is provided. The radiotherapy device includes a radiation source apparatus, the radiation source apparatus includes a plurality of radiation sources and a collimator, source points of the plurality of radiation sources are within a preset included angle range in a longitude direction, the collimator is provided with a plurality of collimating hole groups, and an included angle of each of the collimating hole groups in the longitude direction is within the preset included angle range; and each of the collimating hole groups includes a plurality of collimating holes, and radiation beams emitted from the plurality of radiation sources intersect at a common focus after passing through the collimating holes of the collimating hole groups.