Particle Therapy Gantry Control via Machine Instructions
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Solution Overview
Problem
Current particle therapy systems face challenges in precisely configuring operational characteristics such as dose rate, field size, and depth of particle beams to effectively treat patients with varying treatment plans, as existing technologies lack flexibility and precision in adjusting these parameters during treatment.
Innovation Solution
The particle therapy system incorporates a gantry-mounted particle accelerator with a control system that generates machine instructions to configure operational characteristics like dose rate, field size, and depth by using modulator wheels, absorbers, and scattering devices, allowing for real-time adjustments based on rotational positions and patient-specific requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a particle accelerator is used to generate particle beams for treatment, then particle therapy can be delivered to patients, but the system lacks flexibility and precision in adjusting operational characteristics such as dose rate, field size, and depth
Solution Approach 1:
The system divides the particle beam configuration into multiple independent adjustable parameters (dose rate, field size, depth) that can be controlled separately through machine instructions, allowing precise customization of each operational characteristic without affecting others
Solution Approach 2:
The system implements dynamic adjustment capabilities where operational characteristics can be modified in real-time during treatment through machine instructions, enabling the particle accelerator to adapt to different treatment plans and patient requirements
2Adaptability or versatility
If fixed treatment parameters are used in particle therapy, then the treatment process is simple to operate, but it cannot effectively treat patients with varying treatment plans
Solution Approach 1:
The system enables treatment of varying patient plans by allowing changes in key parameters (dose rate, field size, depth) through machine instructions, while maintaining ease of operation through automated parameter configuration and control
3Manufacturing precision
If real-time adjustments of particle beam parameters are implemented, then tailored treatment plans can be delivered, but the system complexity increases
Solution Approach 1:
The control system uses feedback mechanisms to monitor and adjust particle beam parameters in real-time, ensuring accurate delivery of doses to specific depths and areas while automatically managing the complexity of multiple adjustments
Solution Approach 2:
The control system is designed to handle multiple operational characteristics (dose rate, field size, depth, rotational angle) through a single integrated machine instruction interface, reducing operational complexity despite the multi-parameter control requirements
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 enables precise control over particle beam characteristics, allowing for tailored treatment plans that improve treatment efficacy and patient outcomes by ensuring accurate delivery of doses to specific depths and areas within the patient.
Implementation Method 1
a cavity in which particles are accelerated orbitally
Implementation Method 2
an absorber wheel placed at an entry point of the extraction channel
Implementation Method 3
a gantry that is rotatable relative to a patient position
Data Source
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AI summary
An example particle therapy system includes the following: a gantry that is rotatable relative to a patient position; a particle accelerator mounted to the gantry, where the particle accelerator is for outputting a particle beam essentially directly to the patient position; and a control system to receive a prescription and to generate machine instructions for configuring one or more operational characteristics of the particle therapy system. At least one of the operational characteristics relates to a rotational angle of the gantry relative to the patient position.