Adhesive Patch With Skin Pocket For Post-Application Material Delivery
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Solution Overview
Problem
Existing bandages do not allow for the introduction of materials such as imaging agents after application, limiting their functionality for localized drug delivery or imaging purposes.
Innovation Solution
A patch with a substrate and adhesive that forms a pocket between the patch and the skin, allowing introduction and retention of materials like conditioning liquids, dyes, or nanoparticles, which can be activated by radiation, heat, or mixing with other materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a patch is applied to the skin for localized delivery, then the material can be delivered to the target area, but the patch cannot allow introduction of additional material after application
Solution Approach 1:
The patent implements a pocket structure nested within the patch assembly, where the pocket is formed between the patch and the skin surface. This nested configuration allows the pocket to be integrated into the existing patch structure while providing additional functionality for material introduction and storage after patch application.
Solution Approach 2:
The patch assembly is segmented into distinct functional components: the patch itself, the pocket structure, and the material reservoir. This segmentation allows each component to perform its specific function independently while working together as a unified system, enabling post-application material introduction without compromising the integrity of the original patch.
2Adaptability or versatility
If a pocket is formed between the patch and skin, then material can be introduced and retained, but the patch structure becomes more complex
Solution Approach 1:
The pocket acts as an intermediary structure between the patch and the skin, providing a intermediate space for material storage and controlled release. This intermediary pocket simplifies the overall design by separating the material delivery function from the patch attachment function, allowing each to be optimized independently.
3Reliability
If the pocket is sealed to prevent material leakage, then material retention is improved, but the material cannot be activated or released when needed
Solution Approach 1:
The pocket closure mechanism is designed to be dynamic rather than static, allowing it to transition between sealed and open states. This dynamic capability enables the pocket to maintain material retention when sealed while allowing easy access and activation when opened, resolving the contradiction between reliability and ease of operation.
Solution Approach 2:
The pocket is pre-configured with a closure mechanism that can be easily activated to seal the material inside. This preliminary preparation ensures that once the material is introduced, it is automatically retained without requiring additional actions, while still allowing controlled opening when material release is needed.
Data Source
AI summary
The present invention relates to a device and a method. The device of the present invention comprising a patch comprising: a substrate, and an adhesive on the substrate. Further, the patch is configured to be attached to a skin via the adhesive to form a pocket between the patch and the skin, to allow introduction of a material into the pocket, and to hold the material within the pocket.