Inflatable Mattress Deflation Device with Dual Manifold

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Solution Overview

Problem

Existing anti-bedsore mattresses with deflation devices often have complex and counterintuitive operation processes, making quick deflation difficult and potentially dangerous, and their positioning can interfere with medical interventions like cardiac resuscitation.

Innovation Solution

A deflation device with a U-shaped and rectilinear conduit configuration, a movable cap, and a button mechanism that requires intentional action to open, ensuring easy and safe operation, and a dual manifold design for uniform deflation, allowing for rapid and balanced pressure reduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the deflation device has a complex opening process with multiple steps, then it prevents accidental opening, but it makes the operation difficult and slow

Engineering Contradiction:
Improveprevention of accidental openingVSAvoidoperation simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The opening process is divided into two distinct phases: first rotating the cap to align the groove with the protrusion (safety check), then pushing the button to activate deflation. This segmentation ensures intentional operation while maintaining clarity in each step.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of requiring multiple sequential actions to build complexity for safety, the design inverts the approach by using a simple rotational alignment followed by a straightforward button push. The safety mechanism works by alignment rather than obstruction, simplifying the overall interaction.

Inventive Principle:
Principle #13The other way round (Inversion)

2Object-affected harmful factors

If the deflation device is positioned near the feet area, then it does not interfere with medical interventions, but it increases the distance for operator access

Engineering Contradiction:
Improveinterference with medical interventionVSAvoidoperator access convenience
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The deflation device is designed to serve dual purposes: it can be positioned at the head end to facilitate rapid access during cardiac resuscitation, and its compact design ensures it does not obstruct foot-level medical interventions. The device adapts to different operational contexts based on positioning.

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

3Ease of operation

If the deflation device uses a U-shaped conduit configuration, then it directs air inlet opening in the same direction as the opening, but it increases device complexity

Engineering Contradiction:
Improveair flow direction controlVSAvoidconduit configuration complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The U-shaped conduit uses a smooth curved configuration to redirect air flow in the same direction as the opening. This curvature allows the inlet opening to face the same direction as the exhaust opening, simplifying the overall device orientation and reducing the need for additional directional components.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 solution provides a reliable, easy-to-use, and safe deflation mechanism that minimizes pressure gradients and facilitates quick deflation without accidental opening, improving patient comfort and enabling convenient access for medical interventions.

Implementation Method 1

elastic means are placed between the button and the structure to keep the button away from the cap and/or the structure

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a movable cap, positioned alternately in a closing position in which it beats against the structure so as to close the opening or in a opening position in which it is detached from the structure so as to leave the passage of at least one opening free

Methodology Applied
Scientific EffectMechanical blocking: Valve

Implementation Method 3

a button connected with the movable cap so as to be moved between a first position in which it is connected with the structure so that the cap is compelled to position in a closing position, and a second position in which it is free in relation to the structure so that the movable cap positions in an opening position

Methodology Applied
Scientific EffectMechanical force transmission: Mechanical Force

Data Source

PatentEP2465482B1Inflatable mattress with deflatable device
Publication Date: 2015.03.04 MKS INNOVATECH
  • EP2465482B1 patent drawingFigure 1
  • EP2465482B1 patent drawingFigure 2
  • EP2465482B1 patent drawingFigure 3

AI summary

It refers to an inflatable mattress to which is connected a deflation device (20) adapted to permit a fast deflation of the mattress.