Adjustable Collimator Aperture Control via Dual Knobs
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Solution Overview
Problem
Existing x-ray systems in medical imaging facilities face challenges in efficiently and manually adjusting the collimator aperture size, which is crucial for optimizing x-ray beam dimensions during imaging procedures.
Innovation Solution
The implementation of an adjustable collimator with a pair of knobs attached to a shaft, allowing for manual adjustment of the aperture size by rotating the knobs, which are configured to adjust either the same or different dimensions of the aperture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment mechanism is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The collimator is divided into multiple independent adjustable sections, each controlled by its own knob and shaft assembly. This segmentation allows operators to adjust different aperture dimensions independently, improving ease of operation while keeping each individual adjustment mechanism relatively simple.
Solution Approach 2:
The collimator incorporates dynamic adjustment capabilities through rotatable knobs connected to shafts that can move collimator leaves to different positions. This dynamic mechanism enables real-time aperture size changes during imaging procedures, significantly improving operational flexibility and ease of use.
2Measurement precision
If multiple knobs are added for precise adjustment, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The aperture control is segmented into multiple independent knobs, each responsible for controlling specific aperture dimensions. This segmentation allows for precise control of each dimension separately, improving measurement precision without requiring an overly complex integrated control system.
Solution Approach 2:
Each knob is designed to perform multiple functions: rotating the knob simultaneously controls both the movement of collimator leaves and the positioning of indicators. This multi-functionality achieves precise aperture control while minimizing the number of separate components needed.
3Adaptability or versatility
If adjustable aperture mechanism is implemented, then adaptability is improved, but device complexity increases
Solution Approach 1:
The collimator employs dynamic adjustment mechanisms with rotatable knobs and movable leaves that enable real-time changes in aperture size and shape. This dynamic design provides high adaptability for different imaging procedures while maintaining a relatively simple mechanical structure compared to static complex systems.
Solution Approach 2:
The collimator allows for continuous parameter changes in aperture dimensions through rotational movement of knobs, which translates to linear movement of collimator leaves. This parameter-based control system provides versatile aperture adjustment capabilities while keeping the underlying mechanism straightforward and manageable.
Data Source
AI summary
An adjustable collimator includes pairs of knobs configured to adjust an aperture size by manipulating one or both of the knobs. A pair of knobs configured to adjust different dimensions of the aperture may be disposed at opposite sides of the collimator. Another pair of knobs configured to adjust different dimensions of the aperture may be disposed on a same side of the collimator.