X-Ray Aperture Blade Control for Intuitive Irradiation Field Adjustment
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Solution Overview
Problem
Conventional X-ray diagnostic apparatuses require multiple operation devices for adjusting the irradiation field, making the operation complicated and difficult to intuitively grasp the size and position of the current irradiation field, especially when the visual field is enlarged.
Innovation Solution
The apparatus incorporates operation sections on the display console that correspond to X-ray aperture blades, allowing intuitive adjustment of the irradiation field through sliders and knobs, with a click feeling for predetermined sizes, and a display indicating the irradiation range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate operation devices are used to adjust the irradiation field, then the adjustment capability is comprehensive, but the operation becomes complicated
Solution Approach 1:
The patent combines multiple separate operation devices (levers for size adjustment, levers for position adjustment, and buttons for preset sizes) into a single integrated operation device with multiple operation sections. Each section corresponds to a specific aperture blade and can perform both size and position adjustment functions, eliminating the need for multiple separate devices while maintaining comprehensive adjustment capability
Solution Approach 2:
The integrated operation device is designed with multi-functionality, where each operation section can control both the size and position of the irradiation field by corresponding to individual aperture blades. This universal design allows a single device to perform functions that previously required multiple separate devices
2Loss of information
If the visual field is enlarged to show more information, then the overview is improved, but it becomes difficult to intuitively grasp the size and position of the current irradiation field
Solution Approach 1:
The patent uses visual differentiation through color or brightness changes to display the irradiation field range on the monitor. The irradiation field is shown with distinct visual characteristics (such as a rectangular frame or highlighted region) that make it easily distinguishable from the rest of the enlarged visual field, allowing operators to intuitively grasp its size and position even when the overall view is expanded
Solution Approach 2:
The patent introduces an intermediary visual indicator (such as a rectangular frame or overlay graphic) that represents the irradiation field on the monitor. This intermediary element mediates between the actual physical irradiation field and the operator's visual perception, making the field's size and position easily distinguishable on the enlarged display
3Device complexity
If conventional operation devices are used, then the control functions are separate, but it is difficult to intuitively grasp what operation should be performed
Solution Approach 1:
The operation device is segmented into multiple independent operation sections, with each section corresponding to a specific aperture blade. This segmentation allows operators to control each blade individually, making the operation more intuitive and easier to understand compared to conventional integrated controls
Solution Approach 2:
The patent implements feedback by displaying on the monitor the positions of aperture blades and the resulting irradiation field in real-time as the operator manipulates the operation device. This visual feedback creates a direct relationship between the operator's actions and the system's response, enhancing operational intuitiveness
Data Source
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AI summary
An X-ray diagnostic apparatus according to an embodiment includes an X-ray tube, an X-ray detector, an X-ray aperture including four X-ray aperture blades, and a console device. The X-ray tube irradiates a subject with an X-ray. The X-ray detector detects an X-ray that has passed through the subject. The four X-ray aperture blades limit an irradiation range of an X-ray irradiated from the X-ray tube to the subject. The console device includes an operation assembly, a display section, and a controller. The operation assembly includes a plurality of operation sections that designate a position of each of the four X-ray aperture blades. The display section indicates a first irradiation range formed by the X-ray aperture. The controller controls, according to an operation on the operation assembly, positions of the corresponding X-ray aperture blades and causes the X-ray apertures to form the second irradiation range.