Radiographic Apparatus Top Board Level Control
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Solution Overview
Problem
Current radiographic apparatuses face challenges in imaging when a region of interest is located at one end of the top board, as vertical movement of the subject can cause the external instrument, such as a contrast medium container holder, to topple, distracting operators and compromising imaging quality.
Innovation Solution
A radiographic apparatus with a rotating and liftable top board, where the level of the intersection between the radiation source and detector remains constant during rotation, ensuring a stable distance from the subject to external instruments and allowing for safe and efficient imaging without disturbing external equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the top board is rotated to incline the subject for imaging, then the imaging flexibility is improved, but the subject moves vertically causing external instruments to topple
Solution Approach 1:
A level control mechanism acts as an intermediary between the rotation mechanism and the external instruments. This mediator detects the vertical position of the top board and automatically adjusts the rotation angle or provides alerts to prevent the board from inclining too much, thereby protecting external instruments from toppling while maintaining imaging flexibility
Solution Approach 2:
The system incorporates feedback through level detection mechanisms that monitor the vertical position of the top board during rotation. When the level changes exceed a safe threshold, the feedback system either automatically stops further rotation or alerts the operator, preventing external instruments from being pulled or toppling over
2Adaptability or versatility
If the radiation source and detector are moved to one end of the top board to image the urinary bladder, then the imaging coverage is improved, but the center of gravity shifts causing the top board to become unstable
Solution Approach 1:
A counterweight mechanism is introduced to balance the shifted center of gravity when the radiation source and detector are moved to one end of the top board. The counterweight can be adjusted along the top board or is a fixed mass positioned to compensate for the weight of the imaging equipment, thereby maintaining top board stability while allowing full imaging coverage
Solution Approach 2:
The support structure for the top board is enhanced with additional dimensional support elements, such as adjustable support legs or a reinforced frame structure, that provide stability in multiple directions. This allows the top board to remain stable even when the imaging equipment is positioned at one end, as the additional support dimensions compensate for the asymmetric weight distribution
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 enables safe and time-saved imaging by maintaining a consistent level of the region of interest, preventing external instruments from being pulled by the subject's vertical movement, thus enhancing operational safety and flexibility.
Implementation Method 1
a radiation source 53 and a detector 54... The radiation source 53 emits radiation, and the detector 54 detects radiation
Data Source
AI summary
Provided is a radiographic apparatus with safety and time-saved imaging upon inclination of a subject without pulling an external instrument by the subject. In the radiographic apparatus, a top board supporting the subject placed thereon is rotatable and liftable. The characteristic feature of the embodiment is to control a level of an intersection of the top board and a line connecting an X-ray tube to an FPD to be constant in association with operation of a top-board rotation controller. This achieves a constant level of a region of interest (a site to be imaged) of the subject regardless of rotation of the top board. Consequently, an invariable distance is obtainable between the subject and the external instrument on the floor, allowing suppression in pulling of the external instrument due to a vertical movement of the subject. As a result, provision of a radiographic apparatus with safety and time-saved imaging is obtainable.