Automatic Collimator Changer for Radiosurgery Systems
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Solution Overview
Problem
Current radiation treatment systems, such as the CYBERKNIFE® radiosurgery system, require manual and labor-intensive processes for changing collimators, which can be time-consuming and prone to human error, affecting precision and efficiency in delivering targeted radiation therapy.
Innovation Solution
An automatic collimator changer system utilizing a radiation treatment robot to automate the process of changing collimators, incorporating retention mechanisms and a tool changer to securely engage and disengage collimators without manual intervention, ensuring precise positioning and reducing operator involvement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual operation is used to change collimators, then device complexity is reduced, but productivity decreases and time is lost
Solution Approach 1:
The collimator housing is designed to automatically engage with the LINAC and self-align during the change process. The retention mechanism automatically secures the collimator in place through mechanical engagement features, reducing the need for complex manual operations while maintaining simplicity.
Solution Approach 2:
A retention mechanism acts as an intermediary between the collimator and the housing, providing automatic securing through mechanical features such as retention arms and engagement slots. This intermediary component enables automated collimator changes without requiring complex control systems.
2Measurement precision
If manual operation is used to change collimators, then device complexity is reduced, but measurement precision decreases
Solution Approach 1:
The collimator housing and LINAC are designed with complementary mechanical features that ensure proper alignment and positioning through geometric constraints. The engagement interface uses precisely machined surfaces and registration features to achieve accurate positioning without requiring complex active control systems.
3Ease of operation
If manual operation is used to change collimators, then ease of operation is reduced, but device complexity is minimized
Solution Approach 1:
The collimator housing is designed to automatically engage with the LINAC and self-align during the change process. The retention mechanism automatically secures the collimator in place through mechanical engagement features, reducing the need for complex manual operations while maintaining simplicity.
4Productivity
If automated system is used to change collimators, then productivity increases, but device complexity increases
Solution Approach 1:
The collimator housing is designed to automatically engage with the LINAC and self-align during the change process. The retention mechanism automatically secures the collimator in place through mechanical engagement features, reducing the need for complex manual operations while maintaining simplicity.
Solution Approach 2:
A retention mechanism acts as an intermediary between the collimator and the housing, providing automatic securing through mechanical features such as retention arms and engagement slots. This intermediary component enables automated collimator changes without requiring complex control systems.
Data Source
AI summary
An automatic collimator changer of a radiation treatment system.