X-ray Stand Distortion Compensation via Motor-Driven Bracket Adjustment
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Solution Overview
Problem
Existing medical imaging stands, such as X-ray stands, suffer from distortion due to the weight of the functional components, leading to unwanted deflection of the horizontal bracket and compromised image quality, as frequent resetting of the nutational adjustment is resource-intensive and often impractical.
Innovation Solution
A device with an inclination-angle transmitter and motor-driven adjustment system that detects deviations from a predefined orientation using sensors, automatically compensating for distortions by adjusting the bracket's inclination angle, ensuring precise horizontal alignment regardless of loading or deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the bracket is aligned precisely horizontally using manual nutational adjustment, then the horizontal orientation is maintained, but frequent resetting is required when torque changes, which is resource-intensive and often impractical
Solution Approach 1:
The system uses sensors to automatically detect bracket inclination and triggers motor-driven adjustment mechanisms to self-correct the horizontal alignment without requiring manual intervention. The control unit continuously monitors and adjusts the bracket position, enabling the system to maintain precision automatically.
Solution Approach 2:
Sensors provide real-time feedback on the bracket's inclination angle to the control unit, which then activates the motor drive to adjust the nutational angle accordingly. This closed-loop feedback system ensures continuous maintenance of horizontal alignment without manual resetting.
2Ease of operation
If an average value is set for nutational adjustment to avoid frequent resetting, then operation is simpler, but deviations from horizontal orientation are accepted, compromising precision
Solution Approach 1:
The automatic sensor-based system eliminates the need for manual averaging by continuously detecting and correcting deviations. The system serves itself by automatically maintaining precise alignment without requiring operator intervention or compromise settings.
Solution Approach 2:
Manual mechanical adjustment mechanisms are replaced with an automated electromechanical system comprising sensors, control units, and motor drives. This substitution maintains precision while simplifying operation, as the system automatically compensates for torque variations without requiring manual intervention.
3Manufacturing precision
If sensors and automated control systems are added to compensate for deformation, then horizontal alignment precision is maintained under varying torque, but device complexity increases
Solution Approach 1:
Complex manual adjustment procedures are replaced with an automated electromechanical system. While this adds sensors and control components, it eliminates the need for frequent manual intervention and maintains precision automatically, making the overall system more efficient despite increased component count.
Solution Approach 2:
The feedback system uses sensors to monitor bracket inclination and automatically triggers motor-driven adjustments. This closed-loop control maintains precision without requiring complex manual procedures, as the system self-regulates based on real-time sensor data.
4Strength
If the vertical arm and bracket structure are made more rigid to resist distortion, then resistance to deformation improves, but weight increases, affecting the torque balance
Solution Approach 1:
Rather than increasing structural weight to resist deformation, the system uses lightweight sensors and motor-driven mechanisms to automatically detect and correct distortion. The system compensates for deformation actively without requiring the structure itself to be heavier or more rigid.
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 solution effectively maintains the desired horizontal orientation of the bracket, improving image quality by continuously adapting to changes in torque and deformation, thereby reducing the need for frequent manual adjustments and accepting deviations.
Implementation Method 1
an inclination-angle transmitter (31) that generates an inclination signal as a function of the inclination angle of the bracket
Implementation Method 2
a motor drive (28) that is activated by the control device (20) and adjusts the inclination angle of the bracket (24)
Data Source
AI summary
An X-ray stand includes a device that compensates for distortions caused by weight. The stand includes a horizontal bracket. The device for distortion compensation includes an inclination-angle transmitter that generates an inclination signal as a function of an inclination angle of the bracket. The device also includes a control device that receives the inclination signal from the inclination-angle transmitter, a motor drive that is activated by the control device, and an adjustment device that is driven by the motor drive and is configured to adjust the inclination angle of the bracket. The control device activates the motor drive such that any deviation of the inclination angle of the bracket from a predefined inclination angle is reduced.