Hinged-Lid Dressing Box for Clean One-Handed Plaster Removal

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Solution Overview

Problem

Conventional dressing devices face issues with efficient resealing, easy opening, and safe handling, particularly in emergency situations, leading to contamination and loss of bandages due to awkward handling and unintentional removal of multiple sections.

Innovation Solution

A dressing device with a folding box design featuring a hinged lid and an automatic locking mechanism that securely locks the lid in the closed position, allowing easy one-handed operation and individual removal of plaster sections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a simple rectangular cardboard box is used for packaging adhesive bandages, then manufacturing cost is reduced and ease of manufacture is improved, but resealing reliability deteriorates and protection against contamination is worsened

Engineering Contradiction:
Improveease of manufactureVSAvoidresealing reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The box is divided into a base and a lid that can be separated and reattached. The lid is further segmented with a tear-off strip that can be removed to allow access while maintaining the ability to reseal the container using the remaining lid portion.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The lid transitions from a static closed state to a dynamic state where it can be partially removed (tear-off strip) and then reattached for resealing. This dynamic design allows the container to adapt between secure closure and controlled access.

Inventive Principle:
Principle #15Dynamics

2Device complexity

If adhesive bandages are packaged in a simple rectangular box, then manufacturing complexity is reduced, but protection against unintentional opening and contamination is worsened

Engineering Contradiction:
Improvepackaging complexityVSAvoidcontamination risk
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The lid is pre-designed with a tear-off strip that can be easily removed when needed. This preliminary preparation allows users to quickly access bandages by tearing off the strip without requiring tools or complex mechanisms, while the remaining lid can still be reattached for protection.

Inventive Principle:
Principle #10Preliminary action

3Quantity of substance

If plaster sections are stored in a conventional container, then storage capacity is maximized, but ease of individual removal deteriorates and unintentional removal of multiple sections occurs

Engineering Contradiction:
Improvestorage capacityVSAvoidease of individual removal
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The plaster sections are individually wrapped in separate packaging within the container. This segmentation allows each section to be independently accessed and removed without affecting others, enabling precise control over which section is taken while maintaining efficient storage of multiple sections.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4686664A1Dressing device
Publication Date: 2026.02.04 W SÖHNGEN GMBH
  • EP4686664A1 patent drawingFigure 1
  • EP4686664A1 patent drawingFigure 2
  • EP4686664A1 patent drawingFigure 3

AI summary

The invention relates to a dressing device with a dressing container containing a stack of sealed plaster sections, wherein the dressing container is designed as a folding box and, in the closed state, has a cuboid shape with a length l, a height h, and a width b, where height h < width b < length l. The dressing device is characterized in that one side of the dressing container, having height h and length l, is designed as a hinged lid or is part of a hinged lid by means of which a folding box body can be closed, and that a locking device is provided which automatically locks the hinged lid in the closed position during each closing operation.