Multi-axis Charged Particle Cancer Therapy System
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Solution Overview
Problem
Current charged particle irradiation therapy systems face challenges in accurately and uniformly delivering radiation to tumors while minimizing damage to healthy tissue, requiring precise control over patient position, beam energy, intensity, and timing, as well as effective distribution of radiation.
Innovation Solution
A multi-axis and multi-field charged particle cancer therapy system that controls patient translation and rotation, beam energy, intensity, and timing, using a negative ion beam source and synchrotron with advanced focusing and acceleration technologies, integrated with patient positioning and imaging systems to ensure precise and uniform radiation delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If charged particle irradiation therapy is used to treat tumors, then cancer treatment effectiveness is improved, but precise control over patient position and beam delivery becomes more difficult
Solution Approach 1:
The control system is divided into multiple independent control modules: patient positioning control, beam energy control, beam intensity control, and timing control. Each module operates independently to manage specific aspects of the therapy delivery, making the overall complex system more manageable and precise through modular control architecture.
Solution Approach 2:
Real-time feedback mechanisms are implemented to monitor patient position, beam delivery parameters, and treatment progress. The system continuously adjusts control parameters based on feedback signals from sensors and imaging systems, enabling dynamic optimization of therapy delivery while maintaining precision despite system complexity.
2Object-affected harmful factors
If radiation delivery precision is increased to minimize damage to healthy tissue, then treatment safety is improved, but control accuracy requirements become more stringent
Solution Approach 1:
The system performs preliminary actions by pre-positioning the patient using imaging and positioning systems before beam delivery begins. Treatment planning simulations are conducted in advance to predict optimal beam paths and doses, allowing the actual treatment to proceed with enhanced precision and reduced risk to healthy tissue.
Solution Approach 2:
Mechanical positioning and alignment systems are replaced or supplemented by advanced imaging systems, computer-controlled positioning mechanisms, and real-time monitoring technologies. This substitution enables higher measurement precision and control accuracy through non-contact sensing and digital control rather than purely mechanical means.
3Manufacturing precision
If multi-axis control is implemented to deliver radiation uniformly, then treatment uniformity is improved, but system complexity increases
Solution Approach 1:
The control system is designed with multi-functional capabilities that can handle various control tasks through a unified architecture. A single control platform manages patient positioning, beam orientation, energy modulation, and timing coordination, reducing overall system complexity by consolidating functions rather than requiring separate dedicated systems for each control aspect.
Solution Approach 2:
The system transitions from single-axis or two-axis control to multi-axis control by adding new dimensions of freedom in beam delivery. This enables three-dimensional radiation distribution around the tumor from multiple angles, achieving uniform dose delivery while managing complexity through systematic expansion of control capabilities across multiple independent axes.
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 enables efficient, accurate, and precise non-invasive tumor treatment with minimal damage to surrounding healthy tissue by optimizing radiation delivery based on real-time patient positioning and respiratory monitoring.
Implementation Method 1
synchrotron with advanced focusing and acceleration technologies
Implementation Method 2
energetic ionizing particles, such as protons accelerated with a particle accelerator, onto a target tumor. These particles damage the DNA of cells
Implementation Method 3
multi-axis and multi-field charged particle cancer therapy system
Data Source
AI summary
The invention relates to a method and apparatus for treatment of solid cancer. More particularly, the invention comprises a multi-axis and/or multi-field raster beam charged particle cancer therapy system. The system independently controls patient translation position, patient rotation position, two-dimensional beam trajectory, delivered beam energy, delivered beam intensity, beam movement velocity, timing of charged particle delivery, and/or distribution of radiation striking healthy tissue. The system operates in conjunction with a negative ion beam source, synchrotron, patient positioning, imaging, and/or targeting method and apparatus to deliver an effective and uniform dose of radiation to a tumor while distributing radiation striking healthy tissue.