Bedsore Prevention Pad With Observation Lid and Exudate Barrier

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Solution Overview

Problem

Existing bedsores prevention technologies fail to effectively prevent the development of bedsores due to exudate or excrement permeation, and lack ease of observation and replacement, leading to increased risk and treatment frequency.

Innovation Solution

A modified member with a lid cover having a larger area than the lid, featuring a stacked structure of a pressure-sensitive adhesive layer, release material layer, and protective layer, allowing easy attachment and detachment, and a central opening for observation and replacement, along with a pad layer to absorb exudate and reduce pressure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a diaper cover is used to absorb urine and collect excrement, then excrement can be contained within the diaper, but the lid cannot be easily opened or closed for observation and replacement

Engineering Contradiction:
Improveease of lid opening and closingVSAvoidstructure complexity of lid mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The lid assembly is segmented into distinct functional layers: the lid cover (with adhesive layer for attachment), the lid body (with opening for observation), and the release material layer (for easy detachment). This segmentation allows each component to perform its specific function independently, enabling easy opening and closing without complex mechanisms.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The adhesive layer is pre-applied to the lid cover, and the release material layer is pre-positioned on the adhesive layer. This preliminary preparation allows the lid to be easily attached to and detached from the diaper cover by simply peeling the release material, without requiring complex fastening mechanisms or tools.

Inventive Principle:
Principle #10Preliminary action

2Area of stationary object

If the lid area is increased to allow better observation of affected skin, then visual inspection is improved, but the lid becomes harder to handle and replace

Engineering Contradiction:
Improvelid area for observationVSAvoidease of lid replacement
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The lid system is divided into a larger lid cover that provides extensive observation area, and a separate adhesive layer with release material that enables easy handling. The adhesive layer is positioned at the periphery of the lid cover, allowing the user to grip and manipulate the lid without interfering with the large observation area.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The adhesive layer acts as an intermediary between the lid cover and the diaper cover, providing a simple attachment mechanism. The release material on the adhesive layer serves as a mediator that facilitates easy detachment, allowing the large lid to be replaced without requiring complex fastening or manual dexterity.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If excrement collection capability is enhanced to prevent bedsores, then bedsore prevention is improved, but excrement may still permeate and contact the sacral region

Engineering Contradiction:
Improvebedsore prevention effectivenessVSAvoidexcrement permeation to sacral region
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The lid cover, lid body, and adhesive layer are merged into a single integrated assembly that combines observation, containment, and attachment functions. This unified structure ensures that excrement is contained within the diaper while the lid provides continuous protection over the sacral region, preventing permeation and contact with harmful substances.

Inventive Principle:
Principle #5Merging (Combining)

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

Prevents excrement permeation, facilitates easy lid replacement, allows visual observation of affected skin, and reduces unnecessary treatments, ensuring patient comfort and economic efficiency in bedsores prevention and treatment.

Implementation Method 1

a pad layer (10) of a synthetic resin film formed in a sheet type from synthetic resin foam and hydrocolloid or hydrogel, so as to come into direct contact with a patient's skin

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Implementation Method 2

synthetic resin foam and hydrocolloid or hydrogel

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 3

a pressure-sensitive adhesive layer (30) formed on the inner surface of the cover layer (20) and having a pressure-sensitive adhesive applied thereon

Methodology Applied
Scientific EffectPressure-sensitive adhesion: Adhesive

Data Source

PatentEP3957286B1Enhanced bedsore prevention member
Publication Date: 2026.02.18 LEE KEUN CHEOL
  • EP3957286B1 patent drawingFigure 1~2
  • EP3957286B1 patent drawingFigure 3(a)~3(b)
  • EP3957286B1 patent drawingFigure 4~5

AI summary

The present invention relates to a modified member for preventing bedsores, which comprises a stacked body composed of: a pad layer (10) of a synthetic resin film formed from synthetic resin foam and hydrocolloid or hydrogel, so as to come into direct contact with a patient's skin; a cover layer (20) of a synthetic resin film, which is integrally stacked on the outer surface of the pad layer (10); and a pressure-sensitive adhesive layer (30) formed on the inner surface of the cover layer (20) and having a pressure-sensitive adhesive applied thereon, characterized in that the modified member comprises: an opening (50) penetratingly formed at a central portion thereof to allow an affected part of the patient's skin to be observed with naked eyes therethrough: a lid (40) disposed at the opening to correspond to the shape of the opening (50) so that the lid can be opened/closed relative to the opening (50) by press-fit engagement; and a lid cover (90) disposed on the upper outer surface of the lid (40) and having an area larger than that of the lid.