Jaw-Like Bandage Securing Device with Adhesive Layers

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Solution Overview

Problem

Existing bandage securing devices pose risks of injury from sharp prongs, are prone to loss, require predetermined bandage length, and can cause material tears, while failing to prevent unraveling.

Innovation Solution

A bandage securing device featuring a jaw-like structure with adherent fastening layers on internal and external surfaces, allowing for secure attachment without sharp objects, easy application, and reuse, while distributing forces to prevent tears and unraveling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If metal clips with sharp prongs are used to secure the bandage, then the bandage can be fixed effectively, but there is a risk of injury to the skin

Engineering Contradiction:

Improvebandage fixation effectivenessVSAvoidskin injury risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical sharp prong penetration system with an adhesive bonding system. The adhesive layer chemically bonds to the bandage material and skin surface, providing secure fixation without mechanical penetration or sharp edges that could cause injury.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an adhesive layer as an intermediary substance between the bandage and the skin/bandage material. This adhesive mediator creates a bonding interface that secures the bandage without requiring direct mechanical contact or penetration of sharp objects with the skin.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If traditional metal clips are used, then the bandage can be secured, but the clips are easy to lose when they fall off or are not used

Engineering Contradiction:

Improvebandage fixationVSAvoidclip loss

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The patent merges the securing function directly into the bandage structure itself through integrated adhesive layers. The adhesive is applied to the bandage material, so the securing mechanism and the bandage become a unified system, eliminating separate detachable clips that could be lost.

Inventive Principle:

Principle #5Merging (Combining)

3Force

If the bandage material must withstand large forces in the longitudinal direction, then the bandage can be secured strongly, but the material is prone to tearing especially at the end

Engineering Contradiction:

Improvebandage securing forceVSAvoidmaterial tear resistance

Core Design Contradiction:

ForceVSStrength

Solution Approach 1:

The patent replaces the mechanical force transmission through the bandage material with chemical adhesion. The adhesive layer distributes the securing forces across a broader area through molecular bonding, reducing concentrated mechanical stresses that would otherwise cause tearing at the bandage ends.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Object-affected harmful factors

If hook and loop fasteners are used to eliminate sharp prongs, then injury risk is reduced, but the bandage must be wrapped in a certain direction

Engineering Contradiction:

Improveinjury risk reductionVSAvoidbandage wrapping flexibility

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent creates a universal adhesive system that can bond effectively regardless of the bandage wrapping direction. The adhesive layer is applied to surfaces that can contact the bandage material from any orientation, making the fixation method independent of wrapping direction and providing operational flexibility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

5Ease of operation

If hook and loop surfaces wrap around a transversal section to allow fastening in any direction, then wrapping flexibility is improved, but the bandage length must be determined beforehand

Engineering Contradiction:

Improvewrapping direction flexibilityVSAvoidbandage length adjustment

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent employs a dynamic adhesive application system where the adhesive layer can be applied to adjustable surfaces or the bandage itself, allowing the securing mechanism to adapt to different bandage lengths and wrapping configurations. This dynamic approach eliminates the constraint of predetermined bandage length while maintaining wrapping flexibility.

Inventive Principle:

Principle #15Dynamics

6Reliability

If a sturdy buckle is used to mechanically lock the bandage, then the bandage can be locked in place, but the buckle is less comfortable for the wearer

Engineering Contradiction:

Improvebandage lockingVSAvoidwearer discomfort

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the rigid mechanical locking system with a soft adhesive bonding system. The adhesive layer provides secure bonding through molecular adhesion rather than mechanical interlocking, creating a comfortable interface with the skin that maintains reliability without the discomfort of hard, bulky locking mechanisms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

7Reliability

If a buckle is used to lock the bandage mechanically, then the bandage can be secured, but the bandage material is subjected to stresses in the normal direction increasing the risk of tears

Engineering Contradiction:

Improvebandage securingVSAvoidmaterial tear resistance

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The patent replaces the mechanical locking system that applies concentrated normal stresses with an adhesive bonding system that distributes forces through chemical adhesion. This substitution eliminates the stress concentration points that lead to material tearing while maintaining secure bandage fixation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 comfortable, cost-effective, and reliable bandage securing method that prevents injury, loss, and material tears, allowing for repeated use and effective force distribution, thus enhancing bandage longevity and therapeutic efficacy.

Implementation Method 1

at least one of said first and second sheet parts being provided with at least one first adherent fastening layer on an internal surface facing said overlap, and wherein said bandage securing device further comprises at least one second adherent fastening layer on an external surface

Methodology Applied

Scientific EffectAdhesion: Adhesive

Data Source

PatentUS11246772B2Bandage securing device

Publication Date: 2022.02.15 PRESSCISE

AI summary

A bandage securing device composed of a first sheet part and a second sheet part, and optionally also a third sheet part. The first and second sheet parts are connected to each other along a connection line extending in a width direction and arranged to overlap each other, thereby forming a jaw-like structure in a longitudinal direction. At least one of the first and second sheet parts, and possibly both, are provided with at least one first adherent fastening layer on an internal surface facing the overlap. Further, the bandage securing device can include at least one second adherent fastening layer on an external surface, not facing the overlap, to detachably connect to the bandage. This second adherent fastening layer may be provided on one of the first and second sheet parts, and/or on the third sheet part.