Slide Device for X-ray Cassette Using Sliding Torus Sleeve

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Solution Overview

Problem

Existing methods for positioning an X-ray cassette under a person, especially in cases where mobility is restricted, often require lifting the person, which is dangerous or impractical, and existing insertion devices do not effectively minimize friction for smooth insertion.

Innovation Solution

A slide-in device with a sleeve formed from a flattened torus-shaped tube, comprising four layers of material with an inner and outer layer that slide easily over each other, allowing the X-ray cassette to be inserted with minimal friction, and optionally includes a pocket for the cassette and pull loops for easy retrieval.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the X-ray cassette is inserted by sliding under a person using existing insertion devices, then the insertion should be simple and avoid lifting, but the friction is too high making insertion difficult

Engineering Contradiction:
Improveease of insertionVSAvoidfriction
Core Design Contradiction:
Ease of operationVSForce

Solution Approach 1:

The patent applies a flexible sleeve made from a tube formed into an endless belt with multiple layers that can slide relative to each other. The sleeve acts as a flexible shell that envelops the X-ray cassette and enables smooth insertion under the person by reducing friction through the sliding layers, directly resolving the contradiction between ease of operation and friction resistance.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent changes the physical state and properties of the insertion device by forming a tube into an endless belt structure with multiple sliding layers. This structural transformation allows the device to transition from a rigid form to a flexible, low-friction insertion mechanism, enabling the cassette to be pushed underneath the person without requiring lifting or excessive force.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If a sleeve structure is used to reduce friction, then insertion becomes easier, but the device complexity increases

Engineering Contradiction:
Improveease of insertionVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The sleeve is segmented into multiple layers formed from a tube that is joined to create an endless belt structure. These segmented layers can slide relative to each other, providing the friction-reducing functionality while maintaining a relatively simple overall structure that does not require complex mechanisms or multiple separate components.

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

Enables the X-ray cassette to be inserted under a person with reduced friction and ease, minimizing the need for lifting and ensuring safe and efficient imaging procedures.

Implementation Method 1

The tube is joined together to form the endless belt in such a way that it has the shape of a flattened torus, so that four layers of a material of the tube are layered one on top of the other... the sleeve rolls along with the inner layer and the outer layer of the tube sliding on top of each other... enables the X-ray cassette to be inserted with little friction

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3182894B1Slide device for an x-ray cassette
Publication Date: 2018.12.26 GOCKEL BOHNER HUBERT J
  • EP3182894B1 patent drawingFigure 1~3
  • EP3182894B1 patent drawingFigure 4~5

AI summary

The invention relates to a slide device for an X-ray cassette, for sliding the X-ray cassette under a person, having an envelope that encloses a receiving space for the X-ray cassette, wherein the envelope comprises a hose which encloses an axis and which is joined together in the direction of the axis to form a continuous band.