Segmented C-Arm X-Ray Imaging Apparatus for Compact Operating Room Use

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Solution Overview

Problem

Conventional C-arm X-ray machines with large and complex driving mechanisms face challenges such as long imaging times, difficult precise control, and increased load and volume, making them difficult to use in operating rooms or even move into these spaces.

Innovation Solution

The X-ray imaging apparatus features a lightweight and simple arm part and C-arm supporter, allowing for stable operation and control while maintaining a limited footprint. This design includes a movable mobile base, a rotating arm part, a C-arm supporter, and a C-shaped arm with an X-ray generator and detector at opposite ends, enabling tomosynthesis without exposing the drive system movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the entire C-shaped arm is rotated to obtain multiple projection images, then tomosynthesis can be achieved, but the imaging time becomes long and precise control becomes difficult

Engineering Contradiction:
Improveimaging speedVSAvoiddriving mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent divides the C-shaped arm into two independent rotatable segments: the upper C-shaped arm and the lower C-shaped arm. Each segment can rotate independently around its own axis, allowing the system to obtain multiple projection images without rotating the entire arm. This segmentation reduces the angular range required for each segment, thereby decreasing imaging time and improving control precision while maintaining tomosynthesis capability.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the C-shaped arm is made large and complex to achieve tomosynthesis, then imaging functionality is improved, but the volume and load increase making it difficult to use in operating rooms

Engineering Contradiction:
Improveimaging functionalityVSAvoidarm volume
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

By segmenting the C-shaped arm into upper and lower portions that can rotate independently, the patent enables tomosynthesis functionality without requiring a single large complex arm. Each segment can be smaller and more manageable, reducing the overall volume and load while maintaining the imaging functionality through coordinated rotation of the segments.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces dynamic independence where the upper and lower C-shaped arms can rotate at different speeds and angles according to operational requirements. This dynamic control allows the system to achieve tomosynthesis with smaller individual components rather than a single large rigid structure, improving adaptability to operating room constraints.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the degree of freedom of the multi-joint arm is increased to improve usability, then mobility is enhanced, but operation difficulty increases and imaging posture accuracy decreases

Engineering Contradiction:
ImprovemobilityVSAvoidimaging posture accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent segments the arm into upper and lower C-shaped portions with independent rotation capabilities. This segmentation provides controlled degrees of freedom that enhance mobility while maintaining precision through independent control of each segment's rotation. The system can achieve various positions and angles without the operational complexity associated with high-degree-of-freedom mechanisms.

Inventive Principle:
Principle #1Segmentation

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

The apparatus achieves efficient and precise X-ray imaging with reduced imaging time and improved control, allowing it to be used and moved within tight spaces such as operating rooms, while maintaining the stability and accuracy required for tomosynthesis.

Implementation Method 1

an X-ray generator and an X-ray detector are respectively disposed at opposite ends of a C-shaped arm

Methodology Applied
Scientific EffectX-ray generation: X-Ray

Implementation Method 2

the C-shaped arm connected to the multi-joint arm... capable of rotating

Methodology Applied
Scientific EffectRotational motion:

Implementation Method 3

obtains an X-ray image from the X-rays that travel through the subject to display the internal structure of the subject

Methodology Applied
Scientific EffectX-ray detection:

Data Source

PatentUS20250164415A1X-ray imaging apparatus
Publication Date: 2025.05.22 RAYENCE
  • US20250164415A1 patent drawing
  • US20250164415A1 patent drawing
  • US20250164415A1 patent drawing

AI summary

Proposed is a C-arm X-ray imaging apparatus in which an arm part connecting a main body part and a C-arm part and a C-arm supporter are lightweight and simple, and have stable operating and stationary postures. The apparatus includes a main body part including a movable mobile base, an arm part connected to the main body part through a first axis and capable of rotating up, down, left and right based on the first axis, a C-arm supporter connected to the arm part through a second axis and capable of rotating left and right based on the second axis, and a C-arm part including a C-shaped arm connected to the C-arm supporter through a third axis and capable of rotating, and an X-ray generator and an X-ray detector respectively disposed at opposite ends of the C-shaped arm, wherein the first axis and the second axis remain parallel to each other with respect to the up-down, left-right rotation of the arm part.