Tilting Arm Support Linkage for Constant-Gravity Imaging Positioning
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Solution Overview
Problem
Conventional positioning systems for imaging devices, such as x-ray diagnostic systems, face difficulties in smoothly transitioning between vertical and horizontal positions, requiring counterbalances and limiting flexibility in exam positions, especially for sitting patient exams and table exams, due to changes in the center of gravity and limited space optimization.
Innovation Solution
A tilting arm support system with a geared linkage and sprockets that maintains a constant vertical center of gravity, allowing the imaging element to pivot smoothly between vertical and horizontal positions without significant gravitational shifts, using a first and second sprocket mechanism to create a virtual pivot point and minimize space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pivot point is located at the back surface of the receptor, then the system allows positioning in different orientations, but the center of gravity changes during position changes requiring large counterbalance weights
Solution Approach 1:
The patent applies the equipotentiality principle by designing a linkage mechanism that maintains the imaging portion's center of gravity at a constant vertical level during rotation between vertical and horizontal positions. The linkage connects the arm support to the imaging portion such that as the arm extends or retracts, the imaging portion rotates while its center of gravity remains at the same height, eliminating the need for large counterbalance weights and reducing the effect of gravity on the system.
2Adaptability or versatility
If the support mechanism allows extension outward from the wall, then table exams can be performed, but the system occupies excessive space when in vertical position
Solution Approach 1:
The patent applies the dynamics principle by designing a movable arm support that can dynamically extend and retract relative to the vertical support. The arm support rotates about a pivot point and can be positioned at different distances from the wall depending on the exam requirements. When a table exam is needed, the arm extends outward; when space is needed, the arm retracts toward the wall, allowing the system to adapt its footprint based on operational needs.
Data Source
AI summary
A positioning system for imaging devices is provided. The positioning system includes an imaging element and a tilting arm support having the imaging element coupled thereto. The tilting arm support includes a linkage to tilt the imaging element when the tilting arm support moves.