Semi-Permeable Eyelid Patch With Silicone Adhesive
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Solution Overview
Problem
Existing eyelid closure methods, such as surgical tape and adhesive patches, cause skin abrasions, infections, and moisture-related issues due to aggressive adhesives and occlusive properties, posing risks during surgery and overnight use.
Innovation Solution
A semi-permeable eyelid closure patch with a medical-grade silicone adhesive that adheres to dry areas but not moist ones, allowing moisture regulation and transparent monitoring, with optional perforations for varying permeability and adhesion, ensuring atraumatic removal and reduced contamination risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional surgical adhesive tape is used to close eyelids, then the eyes remain closed during surgery, but skin abrasion and infection risk increase due to aggressive adhesive and trauma upon removal
Solution Approach 1:
The patent changes the adhesive parameter from aggressive surgical adhesive to medical-grade silicone adhesive with lower aggressiveness, and changes the membrane parameter from occlusive to semi-permeable, resolving the contradiction between reliable eye closure and reduced skin trauma
Solution Approach 2:
The patent uses a composite structure combining silicone adhesive with a semi-permeable membrane material, creating a patch that provides both secure adhesion for eye closure and moisture regulation to prevent skin damage
2Strength
If occlusive films and adhesives are used in eye patches, then adhesion is strong, but excessive moisture builds up under the patch leading to maceration and tissue damage
Solution Approach 1:
The patent changes the membrane permeability parameter from occlusive to semi-permeable, allowing moisture vapor transmission while maintaining adhesive strength through the silicone adhesive formulation
Solution Approach 2:
The patent employs a semi-permeable membrane with porous structure that allows selective transmission of moisture vapor, preventing excessive moisture buildup while maintaining patch integrity and adhesion
3Duration of action of stationary object
If traditional adhesive patches are used overnight, then eye closure is maintained, but the adhesive becomes too aggressive causing trauma upon removal
Solution Approach 1:
The patent changes the adhesive parameter to medical-grade silicone adhesive with optimized adhesion strength that maintains eye closure during extended overnight wear but allows atraumatic removal, and changes the membrane to semi-permeable for moisture regulation
4Quantity of substance
If tape rolls are reused to secure eyes, then cost is reduced, but bacterial growth and contamination risk increase
Solution Approach 1:
The patent employs disposable single-use patches that eliminate bacterial contamination risks associated with reusable tape rolls, while the patches remain cost-effective for single-use applications in surgical and overnight care settings
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 patch effectively keeps eyes closed during surgery or sleep, reduces trauma and infection risk, and maintains moisture balance, while being easy to apply and remove without causing skin damage.
Implementation Method 1
wherein the main body comprises a semi-permeable or occlusive membrane
Implementation Method 2
wherein one of the front face and back face comprises silicone adhesive at least partially covering the surface thereof
Data Source
AI summary
An eyelid closure patch having a main body with a front face and a back face, where either one, or both, of the front face and/or the back face has a silicone adhesive at least partially covering the surface thereof. The main body can also have a semi-permeable or occlusive membrane.