Adhesive Patch Gravity Resistance for Sensor Inserter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Adhesive skin patches used in medical devices, such as continuous glucose monitors, tend to droop or sag due to gravity during storage, leading to poor adhesion and reduced effectiveness when deployed.
Innovation Solution
A gravity resistance system is integrated into the skin patch assembly, featuring a low tack adhesive or differential adhesive layers that maintain the patch perpendicular to the sensor inserter, ensuring proper adhesion and easy removal post-deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the skin patch is stored in the sensor introducer tool for an extended period, then the adhesive patch sags and folds due to gravity, but this causes poor adhesion and reduced effectiveness when deployed
Solution Approach 1:
The patent employs a rigid support structure positioned behind the adhesive patch to counteract the gravitational force causing sagging. This support structure acts as a mechanical counterweight that maintains the patch in a flat, perpendicular orientation during storage in the sensor introducer tool, preventing folding and ensuring adhesion quality upon deployment
Solution Approach 2:
The patent implements a pre-configured rigid support structure that is already in place before storage begins. This preliminary structural support prevents the adhesive patch from sagging or folding during the entire storage period, ensuring the patch remains in optimal condition for deployment without requiring intervention during storage
2Area of moving object
If the skin patch is made larger to improve sensor coverage, then the patch has greater surface area, but this increases susceptibility to sagging and folding under gravity
Solution Approach 1:
The rigid support structure extends across the entire surface area of the adhesive patch, providing distributed counterbalancing force that counteracts gravity's effect on each portion of the patch. This allows the patch to be made larger for improved sensor coverage while maintaining flatness and preventing sagging throughout the entire surface area
Solution Approach 2:
The patent utilizes a thin, rigid support structure that mirrors the shape and surface area of the adhesive patch. This thin film-like support provides structural stability and maintains patch flatness without adding significant bulk, allowing the patch to be scaled up in size while maintaining stability and resistance to folding
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 gravity resistance system effectively prevents sagging of the adhesive patch during storage, ensuring reliable adhesion to the user's skin and allowing for larger patch sizes without compromising adhesion quality.
Implementation Method 1
The gravity resistance system includes at least one adhesive layer coupled between the adhesive patch and the sensor inserter
Data Source
AI summary
A system for a physiological characteristic sensor deployed with a sensor inserter includes an adhesive skin patch coupled to the physiological characteristic sensor. The adhesive patch is to couple the physiological characteristic sensor to an anatomy. The system includes a gravity resistance system coupled to the adhesive patch and to be coupled to the sensor inserter. The gravity resistance system maintains the adhesive patch substantially perpendicular to a longitudinal axis of the sensor inserter prior to deployment of the physiological characteristic sensor and the gravity resistance system is to be removable from the sensor inserter by the adhesive patch upon deployment of the physiological characteristic sensor.