Ceiling-Mounted X-Ray Tube Positioning Mechanism
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Solution Overview
Problem
Conventional X-ray diagnostic systems face challenges in adjusting the vertical position of the X-ray tube to accommodate different radiography modes without being affected by the ceiling height, leading to inadequate positioning for supine full-length and standing full-length radiography, especially when the ceiling is either too low or too high.
Innovation Solution
The system incorporates a supporting member with a telescopic pillar section and an arm member with a height adjuster, allowing the X-ray tube's vertical position to be adjusted by extending or contracting the pillar section and using a motor-driven sliding mechanism to move the arm member's tip section relative to the supporting member, enabling precise positioning regardless of the ceiling height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the supporting member is extended to lower the X-ray tube position for standing full-length radiography, then the X-ray tube can reach the heel position, but the X-ray tube cannot be raised high enough for supine full-length radiography when the ceiling is low
Solution Approach 1:
The supporting member is divided into a fixed portion mounted on the ceiling and a movable arm portion. The arm member can be extended or retracted independently of the ceiling height, allowing the X-ray tube to achieve both high and low positions regardless of ceiling constraints. This segmentation enables the system to overcome the limitation of a single telescopic mechanism.
Solution Approach 2:
The arm member is designed with dynamic positioning capability through a motor-driven sliding mechanism that allows the tip section to move vertically relative to the supporting member. This dynamic adjustment enables the X-ray tube to adapt to different radiography modes (supine and standing) by changing its vertical position within a wide range, making the system versatile for various ceiling heights.
2Length of moving object
If the pillar section is made longer to extend the moving range, then the X-ray tube can move from high to low position, but the structure becomes more complex and heavier
Solution Approach 1:
The supporting member is segmented into a fixed base section mounted on the ceiling and a separate movable arm member. This segmentation allows the long stroke requirement to be achieved without making the entire supporting member longer and more complex. The arm member can be extended or retracted independently, providing the necessary movement range while keeping the overall structure compact and manageable.
3Area of stationary object
If the X-ray tube position is fixed high for supine radiography, then the irradiation field is wide, but the position cannot be lowered sufficiently for standing radiography
Solution Approach 1:
The arm member incorporates a motor-driven sliding mechanism that enables dynamic vertical movement of the X-ray tube. The tip section can be moved up or down along the arm member, allowing the system to switch between high position (for wide irradiation field in supine radiography) and low position (for standing radiography), thus providing both wide coverage and position flexibility.
Solution Approach 2:
The supporting member with the movable arm is designed to serve multiple functions: it can position the X-ray tube for supine full-length radiography with wide irradiation field, and also position it for standing full-length radiography with low position. This multi-functionality allows a single system to handle different radiography modes without requiring separate mechanisms for each function.
Data Source
AI summary
An X-ray diagnostic system is provided that is capable of fitting the vertical position of the X-ray tube to each mode of photography without being affected by the height of the ceiling. The X-rays irradiated from the X-ray tube and transmitted through the subject are detected, and photographed images are captured based on the detected X-rays; the system comprises a supporting member, an arm member, and a height adjuster; the supporting member is provided on the ceiling of a room, formed in a pillar shape, and configured in such a way that the entire length is vertically extended and shortened. The arm member has a base end section connected to the lower end portion of the supporting member and a tip section on which the X-ray tube is mounted. The height adjuster adjusts the vertical position of the X-ray tube by moving the tip section of the arm member relative to the supporting member.