X-Ray Equipment With Position-Tracking Protective Plate

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Solution Overview

Problem

Existing X-ray equipment, such as X-ray CT equipment, fails to protect operators moving around in the imaging room from X-ray exposure, as they are not considered in existing radiation protection devices.

Innovation Solution

The equipment includes an X-ray source, detector, image generator, position calculating section, and control section to move a protective plate between the X-ray source and the operator based on their position, using a camera and multi-joint arm to shield against X-rays.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a fixed protective plate is placed at the tunnel opening, then the operator is protected when performing procedures, but the operator is exposed to X-rays when moving around in the imaging room

Engineering Contradiction:
ImproveX-ray exposure to operatorVSAvoidoperator mobility in imaging room
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The protective plate is transformed from a fixed structure to a movable one, capable of dynamically adjusting its position between the X-ray source and the operator based on real-time operator location detection, thereby providing continuous protection while maintaining operator mobility throughout the imaging room

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The protective plate system automatically tracks and follows the operator's movement without requiring manual intervention, using the operator's position information to autonomously reposition itself and maintain optimal protective coverage

Inventive Principle:
Principle #25Self-service

2Object-affected harmful factors

If a movable protective plate system is implemented to track the operator, then protection is provided during movement, but the device complexity increases

Engineering Contradiction:
ImproveX-ray exposure to operatorVSAvoidprotective plate control system
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The camera system originally used for general imaging or monitoring purposes is repurposed to also serve as the operator position detection device, allowing one component to perform multiple functions and thereby reducing overall system complexity despite the added protective plate control mechanisms

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The camera acts as an intermediary device that captures operator position information, which is then processed by the control section to drive the protective plate's movement, simplifying the control architecture by using an existing imaging component rather than implementing a dedicated detection system

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Effectively protects operators from X-rays by positioning a protective plate between the X-ray source and the operator, allowing them to perform procedures smoothly while minimizing exposure.

Implementation Method 1

a protective plate 102a for shielding against X rays

Methodology Applied
Scientific EffectX-ray absorption: Absorption (EM radiation)

Data Source

PatentUS12458305B2X-ray equipment
Publication Date: 2025.11.04 FUJIFILM CORP
  • US12458305B2 patent drawing
  • US12458305B2 patent drawing
  • US12458305B2 patent drawing

AI summary

X-ray equipment that can protect an operator moving around in an imaging room from X rays. The X-ray equipment includes: an X-ray source that irradiates a subject with X rays; a detector that acquires projection data of the subject; and an image generator that generates an X-ray image of the subject using the projection data. The equipment further includes: a position calculating section that calculates the position of the operator in the imaging room; and a control section that moves a protective plate for shielding against X rays to between the X-ray source and the operator according to the position of the operator.