Dynamic Foot Switch Function Assignment in X-ray CT
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Solution Overview
Problem
In X-ray CT apparatuses, the existing foot switch configurations require separate switches for bed raising and lowering, which are not utilized during CT fluoroscopy, leading to unnecessary hardware and increased labor costs due to the need for dedicated controls and operator presence at the console during imaging.
Innovation Solution
The X-ray CT apparatus dynamically switches the functions of the foot switch unit based on the CT fluoroscopic mode, assigning X-ray exposure and other imaging controls to the foot switches during fluoroscopy, eliminating the need for separate exposure switches and allowing hands-free operation, thus reducing hardware requirements and labor costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate foot switches are provided for bed raising/lowering and X-ray exposure, then bed control functionality is ensured, but device complexity and hardware costs increase
Solution Approach 1:
The foot switch unit is designed to perform multiple functions: bed raising, bed lowering, and X-ray exposure control. The control unit dynamically assigns different functions to the foot switch based on the operational mode (CT fluoroscopy mode vs. other modes), allowing a single hardware component to replace what would traditionally require multiple separate switches.
2Adaptability or versatility
If dedicated bed control foot switches are maintained during CT fluoroscopy, then bed adjustment capability is preserved, but operational efficiency decreases due to unnecessary hardware and increased labor costs
Solution Approach 1:
The control unit dynamically changes the function of the foot switch based on the operational mode. During CT fluoroscopy, the foot switch is assigned to X-ray exposure control; during other modes, it controls bed raising and lowering. This dynamic reassignment optimizes operational efficiency by ensuring the foot switch serves a purpose relevant to the current operational context.
Data Source
AI summary
The X-ray CT apparatus according to the present embodiment includes a bed, a foot switch, and processing circuitry. The bed is on which an object is placed. The foot switch is provided on the bed. The processing circuitry is configured to switch functions of the foot switch based on whether or not a CT fluoroscopic mode for performing fluoroscopy of the object is activated.