Detachable X-Ray Alignment Guide for Multi-View Subject Positioning

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Solution Overview

Problem

Existing X-ray radiography apparatuses require replacement or adjustment of the subject's radiography position when changing radiography methods, as different types of X-ray images necessitate different subject alignment devices.

Innovation Solution

A subject alignment device with a detachable guide unit that can be replaced and coupled depending on the type of X-ray images, allowing for the same apparatus to be used for multiple types of X-ray imaging without changing the entire apparatus or subject position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If different subject alignment devices are used for different types of X-ray images, then the alignment accuracy for each specific radiography type is improved, but the device complexity and the need for multiple apparatuses increases

Engineering Contradiction:
Improvealignment accuracyVSAvoidapparatus configuration
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The subject alignment device is divided into a common guide part and interchangeable guide units. The guide part provides universal support structure while different guide units (such as temple supports, guide frames, or ear rod holders) can be attached based on the specific radiography type, enabling precise alignment for each application without requiring complete separate apparatuses

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The guide part is designed with universal coupling mechanisms that can accommodate multiple types of guide units. This allows a single base apparatus to perform multiple alignment functions by simply changing the guide unit, thereby maintaining alignment accuracy across different radiography types while reducing overall device complexity

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

2Measurement precision

If the entire radiography apparatus is replaced when changing radiography methods, then the alignment is optimized for the new method, but the loss of time and operational efficiency decreases

Engineering Contradiction:
Improveradiography alignmentVSAvoidreconfiguration time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system transitions from a static, fixed configuration to a dynamic, reconfigurable system. The detachable guide units can be quickly attached and detached from the guide part, allowing the apparatus to adapt to different radiography methods without complete replacement, thus minimizing reconfiguration time while maintaining alignment precision

Inventive Principle:
Principle #15Dynamics

3Measurement precision

If the subject's radiography position is changed for different radiography types, then the alignment is optimized for each type, but the ease of operation and convenience decreases

Engineering Contradiction:
Improveradiography alignmentVSAvoidoperational convenience
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The guide part serves as an intermediary component that standardizes the interface between the radiography apparatus and different guide units. This intermediary structure allows various guide units to be mounted on a common platform, enabling alignment optimization for different radiography types without requiring the subject to change positions or the entire apparatus to be reconfigured

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4663129A1Subject alignment device with detachable guide unit and x-ray radiography apparatus including same
Publication Date: 2025.12.17 VATECH CO LTD
  • EP4663129A1 patent drawingFigure 1
  • EP4663129A1 patent drawingFigure 2
  • EP4663129A1 patent drawingFigure 3

AI summary

Proposed is a subject alignment device of an X-ray radiography apparatus for obtaining at least two types of X-ray images of a subject. The subject alignment device includes a guide part configured to guide the subject into a radiography posture for obtaining the X-ray images, and guide units configured cc coupled to the guide part according to the types of the X-ray images, and configured to respectively contact different positions of the subject.