Light Limiting Barrel Switching Mechanism for Radiotherapy
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Solution Overview
Problem
Current radiation field control systems in radiotherapy are inefficient due to the need for frequent replacement of light limiting barrels, which can cause equipment damage and are cumbersome, especially when used with grating blade systems, as they require detaching and reattaching components.
Innovation Solution
A radiation field control device with a light limiting barrel support and switching device that allows for direct machining or mounting of multiple light limiting barrels, enabling quick and convenient selection and positioning of the appropriate barrel without detaching the grating system, using a guide rail and driving mechanism for efficient movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple light limiting barrels are stored in a storage box beside the accelerator, then field management is standardized and efficiency is improved, but the operation remains tedious and time-consuming when replacing barrels with grating blade system
Solution Approach 1:
The patent combines multiple light limiting barrels onto a single support structure (light limiting barrel support) that can be rapidly switched as a unified unit. The switching device integrates the selection and positioning mechanisms to move the support with mounted barrels directly into the working position, merging what were previously separate operations of selecting and positioning into one coordinated action.
Solution Approach 2:
The patent introduces a dynamic switching mechanism that enables the light limiting barrel support to move rapidly between different positions. The switching device with guide rails and driving mechanisms allows the system to transition from static barrel storage to dynamic, on-demand barrel selection and positioning, dramatically reducing replacement time.
2Reliability
If light limiting barrel is mounted between accelerator and grating, then radiation field control is achieved, but barrel replacement requires detaching grating system which increases operation complexity and equipment damage risk
Solution Approach 1:
The patent segments the light limiting barrel system from the grating blade system by providing a dedicated light limiting barrel support with its own switching device. This segmentation allows the barrel support to be independently positioned and replaced without affecting the grating system, eliminating the need to detach and reattach the grating during barrel changes.
Solution Approach 2:
The light limiting barrel support acts as an intermediary component between the accelerator and the grating blade system. It provides a dedicated mounting and switching mechanism that mediates the interaction between these two systems, allowing barrel replacement without direct interference with the grating assembly.
3Manufacturing precision
If different-sized light limiting barrels are customized for different patients, then precise radiation field control is achieved, but barrel management becomes inconvenient and troublesome
Solution Approach 1:
The light limiting barrel support is designed as a universal platform that can accommodate multiple different-sized light limiting barrels. The support structure and switching mechanism are configured to handle various barrel sizes and types, eliminating the need for separate management systems for each barrel size and simplifying the overall management process.
Data Source
AI summary
The invention discloses a radiation field control device and radiotherapy equipment. Two or more different-sized light limiting barrels are directly machined on a light limiting barrel support, or two or more light limiting barrel mounting portions are arranged on the light limiting barrel support, then the two or more light limiting barrels are respectively mounted in the light limiting barrel mounting portions in a one-to-one correspondence manner, any one of the light limiting barrels can move to a working position through a light limiting barrel switching device, in this case, when the light limiting barrel having suitable size is required, the unsuitable light limiting barrel does not need to be detached, and the required light limiting barrel can be used conveniently and quickly by directly controlling the light limiting barrel switching device. By adopting the solution, the radiation field control device is not only simple in structure, convenient and quick to use, but also greatly improves the working efficiency.