X-Ray Bed Panning Knob with Dual-Side Release Detection
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Solution Overview
Problem
Conventional X-ray diagnostic apparatuses face issues with erroneous operations due to the large size of the panning knob, which can be accidentally activated by the belly of operators or contact with objects or subjects, hindering procedures.
Innovation Solution
The X-ray diagnostic apparatus incorporates a panning knob with dual detection mechanisms, including a switch that detects inputs from above and below, requiring simultaneous activation to release the horizontal movement restriction, thereby preventing accidental operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the panning knob is made large in size, then it is easier to operate and locate, but it becomes susceptible to erroneous activation by accidental contact from operator's body or objects
Solution Approach 1:
The panning knob is divided into multiple independent detection areas: a first detection area for detecting input from above and a second detection area for detecting input from below. These segmented detection areas work together to require coordinated input, preventing accidental activation while maintaining ease of operation.
2Reliability
If the panning knob size is reduced to prevent accidental contact, then erroneous operation decreases, but the switch becomes harder to locate and operate
Solution Approach 1:
The detection mechanism transitions from a single-point contact to a multi-dimensional detection system with separate first and second detection areas that detect inputs from different directions (above and below). This dimensional expansion allows the switch to maintain a compact form while providing clear tactile feedback and preventing accidental activation.
3Device complexity
If a simple push-button switch is used, then the device complexity is low and manufacturing is easy, but it cannot distinguish between intentional and accidental activation
Solution Approach 1:
The system performs preliminary detection through the first detection area before final activation. The first detection area detects initial input from above, and only when this is followed by appropriate input to the second detection area does the release operation occur. This preliminary action sequence ensures intentional operation while maintaining relatively simple device structure.
Data Source
AI summary
An X-ray diagnostic apparatus according to the embodiment comprises a restrictor, a manipulator, and a releaser. The restrictor sets a movement restriction of a top plate in a horizontal direction, wherein a subject is placed on the top plate. The manipulator receives a releasing operation for releasing the movement restriction. The releaser releases the movement restriction when the manipulator receives a first operation that is the releasing operation from below.