Wound Dressing Fixation with Silicone Gel for Gentle Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing medical articles for wound dressing fixation cause pain and skin damage during removal due to high adhesive strength, particularly in sensitive skin conditions.
Innovation Solution
A medical article comprising a non-woven backing layer, a plastic film layer, and an adhesive silicone gel layer, designed for gentle and painless removal, with optional protection layer to prevent contamination and facilitate application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If high adhesive strength adhesives are used to secure the wound dressing, then the fixation security is improved, but the patient experiences pain and skin damage during removal
Solution Approach 1:
The patent employs a composite adhesive system consisting of a synthetic rubber-based adhesive layer combined with a silicone gel layer. The synthetic rubber adhesive provides strong initial bonding and fixation security, while the silicone gel layer reduces adhesive aggressiveness and enables painless removal. This composite structure allows the adhesive article to simultaneously achieve both strong fixation and gentle removal, resolving the contradiction between adhesive strength and patient comfort.
2Ease of operation
If a non-woven backing layer is used, then flexibility and breathability are improved, but adhesive application and containment become more difficult
Solution Approach 1:
The patent introduces a plastic film layer as an intermediary between the non-woven backing layer and the silicone gel adhesive layer. This film layer serves multiple functions: it provides a smooth surface for uniform adhesive application, acts as a barrier to prevent adhesive penetration into the non-woven material, and maintains the breathability and flexibility benefits of the non-woven backing. This intermediary structure resolves the manufacturing difficulties while preserving the operational advantages.
3Reliability
If a plastic film layer is added to facilitate adhesive application and provide barrier function, then adhesive containment is improved, but moisture vapor transmission and breathability may be reduced
Solution Approach 1:
The patent applies the plastic film layer selectively and with controlled properties. The film is designed to be permeable to moisture vapor, allowing breathability while still providing the necessary barrier function for adhesive containment. By optimizing the film's local properties (permeability, thickness, and material composition), the patent achieves both reliable adhesive containment and maintained skin breathability, preventing maceration.
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 article provides secure, painless, and gentle fixation of wound dressings with high breathability and moisture vapor transmission, preventing skin maceration and adhesive degradation.
Implementation Method 1
an adhesive silicone gel layer with a top side and a bottom side. The top side of the silicone gel layer is attached to the bottom side of the first film layer
Implementation Method 2
the medical article may have a high moisture vapor transmission rate, that is the medical article may be highly breathable
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The present invention relates to a medical article for fixation of a wound dressing as well as its use and manufacturing method. The medical article comprises a non-woven backing layer. A plastic film layer is attached to the bottom side of the non-woven backing layer. An adhesive silicone gel layer is then in turn attached to the bottom side of the plastic film layer. Preferably, the medical article is provided in the form of a roll. The medical article according to the present invention may provide an easy to apply, secure, skin-friendly, painless and gentle fixation of a primary dressing such as a compress on the body of a patient.