Adhesive Applicator for Wearable Hardware
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Solution Overview
Problem
Body-mounted monitoring devices face challenges with adhesive layer breakdown, manual removal difficulties, and improper alignment, leading to reduced reliability and battery life, especially when not continuously worn or operated.
Innovation Solution
A monitoring device system with an adhesive applicator that aligns and applies a new adhesive layer, featuring a spring-loaded mechanism and unique housing design to ensure proper alignment and easy reapplication, and includes a battery preservation mode to extend device life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual removal and reapplication of adhesive layer is performed, then adhesive layer can be replaced, but alignment difficulty and operation complexity increase
Solution Approach 1:
The adhesive layer is pre-applied to the monitoring device during manufacturing with alignment features already integrated. This preliminary action eliminates the need for manual alignment during reapplication, as the adhesive layer is designed to self-align with the device housing through features like protrusions fitting into recesses or patterned adhesion zones that naturally orient correctly.
Solution Approach 2:
The adhesive layer incorporates self-aligning features such as asymmetric patterns, shaped adhesion zones, or mechanical interlocking elements that automatically orient the adhesive layer correctly when applied. This self-service mechanism guides proper alignment without requiring manual intervention or complex alignment tools from the user.
2Reliability
If adhesive layer is manually removed and reapplied, then adhesive can be renewed, but time consumption and productivity loss occur
Solution Approach 1:
The adhesive layer is pre-configured with removal features such as tear strips, perforated lines, or tab elements that enable rapid and clean removal. This preliminary design allows users to quickly remove the adhesive layer without manual picking or cutting, significantly reducing the time required for replacement while maintaining complete removal for proper reapplication.
Solution Approach 2:
The adhesive layer incorporates dynamic removal mechanisms such as peelable structures or detachable components that allow for quick and easy removal. The adhesive may have time-dependent adhesion properties that allow easy removal after a certain period, or include mechanical features like tabs or perforations that enable rapid detachment without damaging the monitoring device.
3Use of energy by moving object
If monitoring device is disabled to preserve battery life, then battery life is extended, but device availability is reduced
Solution Approach 1:
The monitoring device implements periodic operation modes where it alternates between active monitoring periods and low-power sleep periods. During active periods, the device performs measurements and transmits data; during sleep periods, non-essential functions are disabled to conserve battery. This periodic action allows the device to extend battery life while maintaining availability through regular monitoring cycles and on-demand wake-up capabilities.
Solution Approach 2:
The monitoring device dynamically adjusts its operational parameters based on battery status, usage patterns, and environmental conditions. When battery life is sufficient, the device operates at full functionality; when battery level decreases, the device automatically reduces monitoring frequency, disables non-essential features, or increases sleep duration. This parameter adjustment allows the device to adapt between maximizing battery life and maintaining full availability based on current conditions.
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 system ensures reliable adhesion and proper alignment of the adhesive layer, reducing misalignment and debris entry, while the battery preservation mode extends the device's usage and battery life by detecting disconnection from the skin.
Implementation Method 1
a spring-loaded floor that moves between a floor of the chamber and the opening
Data Source
AI summary
An adhesive layer applicator for a body-mountable device is disclosed. The applicator includes a housing defining a first opening through which a chamber is accessible, and a plurality of adhesive layers and a plurality of adhesive liners alternately stacked on a floor that is movable within the chamber. The size and shape of the opening corresponds to the size and shape of the body-mountable device. The housing is configured to receive at least a portion of the body-mountable device through the opening. A second opening is formed in each adhesive layer in the plurality of adhesive layers and a gel is accommodated within the second openings.


