X-ray Imaging System Tilt Compensation
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Solution Overview
Problem
Current X-ray imaging systems face challenges in efficiently adjusting the angle of the support unit relative to the tabletop during imaging, especially when the tabletop is tilted, which can limit the ability to acquire X-ray images from desired directions, particularly in interventional radiology and vascular occlusion procedures.
Innovation Solution
The X-ray imaging system incorporates a tilt detector and a calculator that calculate a correction angle based on the detected tilt angle and stored imaging angle information, allowing the drive unit to adjust the position and angle of the support unit relative to the tabletop, enabling precise positioning for optimal imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tabletop is tilted to allow easier treatment operation, then the ease of operation is improved, but the ability to acquire X-ray images from desired directions deteriorates
Solution Approach 1:
The support unit is made dynamically adjustable with multiple degrees of freedom, allowing real-time modification of its position and angle relative to the tabletop. This enables the system to adapt to both tilted tabletop configurations and desired X-ray imaging angles, resolving the contradiction between operational ease and imaging versatility.
Solution Approach 2:
The system changes the positional and angular parameters of the support unit based on detected tabletop tilt angles. By calculating correction angles and adjusting support unit parameters accordingly, the system maintains the ability to acquire images from desired directions even when the tabletop is tilted for easier operation.
2Device complexity
If the support unit angle is adjusted manually without tilt detection, then the device complexity is reduced, but the manufacturing precision and positioning accuracy deteriorate
Solution Approach 1:
The support unit incorporates self-adjustment capability through integrated tilt detection and automatic angle calculation. The system detects tabletop tilt angles and autonomously calculates correction angles to adjust the support unit position, achieving precise positioning without complex manual intervention while maintaining reasonable device complexity.
Solution Approach 2:
The system implements feedback control by detecting actual tabletop tilt angles and using this information to adjust the support unit position. This closed-loop feedback mechanism ensures accurate positioning while keeping the control system relatively simple, as it directly responds to detected tilt conditions.
3Adaptability or versatility
If multiple positioning functions are integrated into the support unit, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The support unit is designed with multi-functionality, integrating tilt detection, angle calculation, and position adjustment capabilities into a single system. This universal design allows the support unit to handle various imaging angles and tabletop configurations without requiring separate systems for each function, thereby improving adaptability while controlling overall device complexity.
Data Source
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AI summary
Disclosed is an X-ray imaging system that allows X-ray images to be acquired from a desired direction by considering the tilt of a tabletop. The X-ray imaging system described in the embodiment includes a support unit that holds an X-ray imaging unit that performs X-ray imaging of a subject. The subject is placed on the tabletop. A memory stores in advance imaging angle information from previous imaging. A tilt detector detects the tilt angle of the tabletop. A calculator calculates a correction angle for correcting the imaging angle information based on the imaging angle information and on the tilt angle. A drive unit moves the support unit to a position based on the imaging angle information and the correction angle.