Adhesive Patch With Detector Compound For Sweat Monitoring
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Solution Overview
Problem
Conventional monitoring devices for biological characteristics are often bulky and non-mobile due to their need for external attachments, limiting their use for extended periods without causing skin irritation.
Innovation Solution
An adhesive device with a dual adhesive surface and an intermediate region containing detector compounds that can adhere to skin and a medical device, allowing for the detection of target molecules through sweat, while also featuring a moisture-wicking pocket to maintain skin health and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If conventional monitoring devices are used, then biological characteristics can be monitored, but the devices are bulky and non-mobile requiring external attachments
Solution Approach 1:
The patent combines the monitoring device with an adhesive patch that can be directly applied to the skin, eliminating the need for separate external attachments. The monitoring device is integrated into a self-adhering platform that provides both fixation and protection, resolving the contradiction between device weight and mobility by creating a unified wearable unit.
Solution Approach 2:
The adhesive patch serves multiple functions simultaneously: it acts as an adhesive attachment mechanism, a protective barrier for the skin, a moisture-wicking layer, and a structural housing for the monitoring device. This multi-functionality eliminates the need for separate external components, making the device both lightweight and mobile while maintaining monitoring capabilities.
2Duration of action of moving object
If monitoring devices are worn for extended periods, then continuous monitoring is achieved, but skin irritation occurs due to adhesive contact
Solution Approach 1:
The adhesive patch is divided into distinct functional layers: an outer protective layer, a moisture-wicking intermediate layer, and an adhesive layer. This segmentation allows the adhesive to be separated from direct skin contact by protective barriers, enabling extended wear duration while preventing skin irritation through the intermediate protective layers.
Solution Approach 2:
The patent introduces intermediate layers between the adhesive and skin, including a moisture-wicking layer and protective barriers. These intermediary layers prevent direct harmful contact between the adhesive and skin while allowing the adhesive to maintain its bonding function, thus enabling long-term wear without irritation.
3Strength
If adhesive is applied directly to skin for monitoring device attachment, then secure fixation is achieved, but adhesive residue and skin damage occur upon removal
Solution Approach 1:
The patent applies protective barrier layers beforehand between the adhesive and skin. These pre-applied protective layers cushion the skin from direct adhesive contact, allowing strong bonding during wear while preventing adhesive residue and skin damage during removal, as the barrier layers are removed with the adhesive rather than the skin.
4Strength
If adhesive surfaces are increased to improve device attachment, then fixation strength is improved, but moisture accumulation occurs causing discomfort
Solution Approach 1:
The patent applies different material properties to different regions of the adhesive patch. The adhesive areas provide strong bonding, while intermediate regions incorporate moisture-wicking materials with hydrophilic properties. This local differentiation allows the device to maintain strong attachment while actively managing moisture in specific zones, preventing discomfort from moisture accumulation.
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
Enables the long-term, irritation-free wear of lightweight monitoring devices capable of detecting biological markers, such as drug metabolites, with minimal adhesive residue for easy removal.
Implementation Method 1
a first material configured to allow moisture to pass in one direction through the adhesive film from the adhesive side to the non-adhesive side while preventing moisture from passing through the adhesive film from the non-adhesive side to the adhesive side
Implementation Method 2
The pocket may include a second material configured to wick moisture away from the skin
Implementation Method 3
the intermediate region includes a detector compound embedded in the intermediate region configured to change based on interaction of the detector compound with a target molecule
Data Source
AI summary
An adhesive device may include a first adhesive surface configured to be adhered to skin of a user, and a second adhesive surface opposite the first adhesive surface and configured to be adhered to a medical device. The adhesive device may also include an intermediate region between the first adhesive surface and the second adhesive surface, where the intermediate region includes a detector compound embedded in the intermediate region configured to change based on interaction of the detector compound with a target molecule.