Stretchable Adhesive Sheet Fixture for Low-Damage Skin Removal
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Solution Overview
Problem
Existing medical devices and health monitoring devices cause skin damage when removed due to insufficient fixing force and angle-dependent peeling, leading to issues like skin peeling and laceration.
Innovation Solution
An article fixture with a protective layer and a stretchable adhesive sheet unit that allows for the adhesive sheet to be detached in multiple directions, minimizing skin contact and damage during removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a medical tape is used to fix a device on the skin, then the device can be securely fixed, but the skin may be damaged during removal due to peeling and laceration
Solution Approach 1:
The adhesive sheet unit is divided into a first adhesive layer bonded to the protective layer and a second adhesive layer bonded to the article, with a non-adhesive third layer in between. This segmentation allows the first adhesive layer to remain on the skin while the second layer removes with the article, preventing skin damage.
Solution Approach 2:
The protective layer acts as an intermediary between the skin and the article. It remains on the skin during removal while the article and its adhesive layers are detached, protecting the skin from direct adhesive damage and preventing skin peeling and laceration.
2Ease of operation
If the adhesive sheet is peeled off without stretching, then the removal process is simple, but the adhesive sheet cannot be detached properly without damaging the adherend
Solution Approach 1:
The adhesive sheet unit is designed to be stretchable in at least two directions when the article is attached. During removal, stretching the adhesive sheet unit in these directions enables proper detachment from the protective layer without damaging the adherend, transforming a static peeling process into a dynamic controlled removal.
Solution Approach 2:
The physical state of the adhesive sheet unit changes during removal through stretching. By changing the dimensional parameters of the adhesive sheet unit (expanding it in at least two directions), the adhesive bonds are controlled to fail in a way that leaves the protective layer intact on the skin while removing the article.
3Device complexity
If the adhesive sheet unit is not stretchable, then the structure is simpler, but it cannot provide both strong fixing force and reduce load on the skin during removal
Solution Approach 1:
The adhesive sheet unit incorporates stretchability in at least two directions, transforming it from a rigid static structure to a dynamic flexible one. This enables the adhesive to conform to skin movement during wear while allowing controlled detachment during removal, achieving both strong fixing force and skin protection.
Solution Approach 2:
The adhesive sheet unit is constructed as a composite with a first adhesive layer, a non-adhesive third layer, and a second adhesive layer. This composite structure combines different material properties - adhesive and non-adhesive - to achieve both strong bonding during wear and gentle removal that protects the skin.
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
Reduces skin damage by allowing the adhesive sheet to be stretched and detached parallel to the skin surface, maintaining the protective layer in place and minimizing peeling force.
Implementation Method 1
an adhesive sheet unit configured to bond to the second main surface of the protective layer, wherein the adhesive sheet unit includes a first adhesive layer configured to bond to the second main surface
Data Source
AI summary
To provide an article fixture, a method for removing an article, and an adhesive sheet unit that can reduce damage to an adherend.An article fixture for fixing an article on an adherend includes a protective layer that can be formed on the adherend and includes a first main surface facing the adherend and a second main surface opposite to the adherend; and an adhesive sheet unit for bonding to the second main surface of the protective layer. The adhesive sheet unit includes a first adhesive layer for bonding to the second main surface, and the adhesive sheet unit is formed to be stretchable in at least two directions when the article is attached.