X-ray Tabletop Height Control via Arm Retraction Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In X-ray diagnostic apparatuses for circulatory organs, the need to adjust the tabletop height after retracting the radiography unit complicates surgical treatments, as the interest part may exit the irradiation field, causing operational difficulties for the operator.
Innovation Solution
An X-ray diagnostic apparatus with a tabletop support system that allows for precise movement in longitudinal, raising/reclining, and upper/lower directions, combined with a position storing unit that associates arm and tabletop positions, enabling the tabletop to maintain the necessary height for photographing without manual adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the radiography unit is retracted from the bed portion to facilitate surgical treatment, then the surgical treatment space is improved, but the tabletop height becomes unsuitable for photographing requiring manual adjustment
Solution Approach 1:
The control unit stores the tabletop position information before the radiography unit is retracted. When the arm is at the retraction position, the control unit automatically returns the tabletop to the stored position, eliminating the need for manual adjustment and maintaining the interest part within the irradiation field
Solution Approach 2:
The position detecting unit detects the arm position and provides feedback to the control unit. The control unit uses this feedback to determine when the arm is at the retraction position and automatically adjusts the tabletop height accordingly, creating a closed-loop control system
2Ease of operation
If the tabletop is moved in the raising/reclining direction after radiography unit retraction, then surgical treatment facilitation is improved, but the interest part exits the irradiation field requiring height adjustment
Solution Approach 1:
The system serves itself by automatically returning the tabletop to the correct position using the stored position information and position detecting unit, without requiring external manual intervention to maintain positioning accuracy
Solution Approach 2:
The automatic control system replaces manual mechanical adjustment operations with an automated control mechanism that uses position detection and control units to maintain precise tabletop positioning
3Adaptability or versatility
If manual tabletop height adjustment is required after radiography unit retraction, then adaptability to different treatment positions is improved, but operator workload increases
Solution Approach 1:
The control unit stores the tabletop position information in advance before the radiography unit is retracted, so that when adjustment is needed, the system can automatically restore the correct position without requiring operator time for manual adjustment
Solution Approach 2:
The position detecting unit continuously monitors the arm position and provides feedback to the control unit, enabling automatic tabletop height adjustment that maintains adaptability while eliminating operator time for manual adjustments
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 reduces the operator's workload by maintaining the interest part's height within the irradiation field, eliminating the need for manual tabletop height adjustments during surgical treatments.
Implementation Method 1
an X-ray tube and an X-ray detector, in which the X-ray tube irradiates the object placed on the tabletop with X-rays
Implementation Method 2
the X-ray detector detects X-rays transmitted through the object
Data Source
AI summary
According to one embodiment, an X-ray diagnostic apparatus includes at least a tabletop support, an arm, a position storing unit, and a mechanism controlling unit. The tabletop support supports a tabletop movably in a longitudinal direction, a raising/reclining direction, and an upper/lower direction of the tabletop. The arm holds an X-ray tube and an X-ray detector movably in an approaching/separating direction with respect to the tabletop support. The position storing unit stores a photographing position of the arm and a photographing position of the tabletop in association with each other. When the arm is at a retraction position, the mechanism controlling unit moves the tabletop in the raising/reclining direction and the upper/lower direction to maintain a position in at least the upper/lower direction of a region of the object corresponding to a photographing position of the arm stored by the position storing unit.