C-arm X-ray Damping Element Vibration Isolation

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Solution Overview

Problem

C-arm x-ray devices experience poor image quality and mechanical instability due to vibrations caused by the high rotational speed of the rotary anode, leading to blurred image sequences and premature wear of components.

Innovation Solution

Incorporating damping elements with oscillation-damping effects between the x-ray source and the C-arm, and adjustable holding elements to influence the damping effect, which can be switched on or off as needed, to reduce or eliminate vibrations transmitted to the x-ray detector.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the rotary anode rotates at high speed to improve x-ray production efficiency, then x-ray image quality improves, but vibrations are generated that cause poor image quality and mechanical instability

Engineering Contradiction:
Improvex-ray image production efficiencyVSAvoidmechanical stability of C-arm
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

A damping element is introduced as an intermediary component between the x-ray source and the C-arm. This damping element absorbs and dissipates vibrations generated by the high-speed rotary anode, preventing them from being transmitted to the C-arm and x-ray detector, thus resolving the contradiction between high-speed operation and mechanical stability

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The damping element converts the harmful vibrations generated by the high-speed rotary anode into beneficial energy dissipation through material damping. The vibrations that would otherwise cause mechanical instability and poor image quality are transformed into heat energy within the damping element, eliminating their harmful effects while allowing high-speed operation to continue

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Manufacturing precision

If damping elements are added to reduce vibrations, then image quality improves, but device complexity increases

Engineering Contradiction:
Improveimage qualityVSAvoidstructure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The damping element's properties (such as material composition, geometry, and placement) are optimized to achieve maximum vibration damping with minimal added complexity. By carefully selecting damping parameters and configuration, the solution achieves improved image quality while keeping the structural complexity increase to a minimum

Inventive Principle:
Principle #35Parameter changes

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

Improves image quality by reducing vibrations and mechanical loads, extending the lifespan of components and reducing noise levels, thereby enhancing the operational stability and patient comfort.

Implementation Method 1

at least one damping element with an oscillation-damping effect is arranged between the x-ray source and the C-arm, by which transmission of oscillations from the x-ray source to the C-arm may be reduced

Methodology Applied
Scientific EffectOscillation damping: Damping

Data Source

PatentUS9144145B2C-arm X-ray device with a C-arm and associated method
Publication Date: 2015.09.22 SIEMENS HEALTHINEERS AG
  • US9144145B2 patent drawing
  • US9144145B2 patent drawing
  • US9144145B2 patent drawing

AI summary

A C-arm x-ray device includes a C-arm and an x-ray source and an x-ray detector arranged on the C-arm. At least one damping element with an oscillation-damping effect is arranged between the x-ray source and the C-arm. Transmission of oscillations of the x-ray source onto the C-arm may be reduced with the at least one damping element. The C-arm x-ray device also includes at least one holding element arranged on the C-arm. The oscillation-damping effect of the at least one damping element may be influenced.