Radiographic Apparatus Circular Frame Collision Avoidance

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Solution Overview

Problem

Conventional radiation imaging apparatuses face operational challenges due to collisions between the rotating flat panel detector and obstacles, which complicates the rotation process.

Innovation Solution

A radiation imaging apparatus with a circular frame member surrounding the radiation detector, whose diameter is longer than the diagonal length of the detector, prevents collisions by maintaining a constant circumference location during rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the flat panel detector rotates around the vertical axis to enable imaging from multiple angles, then the imaging versatility is improved, but the likelihood of collision with obstacles increases

Engineering Contradiction:

Improveimaging angleVSAvoidcollision risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies a circular frame member with curved geometry surrounding the flat panel detector. This circular configuration allows the detector to rotate smoothly around the vertical axis while the curved frame prevents collision with obstacles by maintaining proper clearance, thus enabling multi-angle imaging without increasing collision risk.

Inventive Principle:

Principle #14Spheroidality (Curvature)

2Volume of moving object

If the flat panel detector is made rectangular for compactness, then the device size is reduced, but the collision risk with obstacles increases during rotation

Engineering Contradiction:

Improvedetector sizeVSAvoidcollision risk

Core Design Contradiction:

Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent surrounds the rectangular flat panel detector with a circular frame member. This combination maintains the compact rectangular detector while the circular frame provides collision prevention during rotation, effectively resolving the conflict between detector compactness and collision risk.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The circular frame member acts as an intermediary element between the rectangular detector and obstacles. It provides a protective barrier that prevents direct collision between the detector and obstacles while allowing the detector to rotate for multi-angle imaging.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of operation

If the detector rotates freely without constraints, then the ease of operation is improved, but the reliability decreases due to potential collisions

Engineering Contradiction:

Improverotation freedomVSAvoidcollision avoidance

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The circular frame member enables free rotation of the detector around the vertical axis while simultaneously preventing collisions with obstacles. The curved geometry of the frame maintains constant clearance during rotation, thus preserving both operational freedom and reliability.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentUS10765386B2Radiographic apparatus

Publication Date: 2020.09.08 SHIMADZU CORP

AI summary

A radiation imaging apparatus avoids collisions of the radiation with an obstacle, and includes a flat panel detector (FPD) connected with a supporting axis facing a vertical direction to a ray detection surface. A supporting axis is supported rotatably due to the action of the bearing and the flat panel detector rotates around the supporting axis as the center of the rotation via the supporting axis by driving with the motor. A frame member surrounding the flat panel detector has a circular outer appearance of which a center is the supporting axis, and the diameter of the frame member is longer than the length of the diagonal line of the flat panel detector.