Disposable Analyte Sensor Base With Sealed Battery Contacts
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Solution Overview
Problem
Existing analyte sensors, particularly those used by diabetes patients, face challenges in maintaining consistent battery power supply, which is crucial for continuous glucose monitoring and communication, as they are often powered by batteries that can fail to provide reliable power due to moisture ingress and wear.
Innovation Solution
A disposable analyte sensor base with a battery and reusable sensor electronics module that form a sealed connection, ensuring reliable power transmission through a sealing member and securement features, allowing for easy replacement and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a battery is integrated into the disposable base, then power supply reliability is improved, but device complexity increases
Solution Approach 1:
The device is divided into two separate modules: a disposable base containing the battery and analyte sensor, and a reusable sensor electronics module. This segmentation allows the battery to be replaced with the base, resolving the contradiction by making power supply reliability achievable through disposable replacement while keeping the overall device manageable through modular design.
Solution Approach 2:
The base containing the battery is designed as a disposable component that can be easily replaced. This allows the battery to have a limited lifespan without affecting the overall system reliability, as the entire base can be discarded and replaced when the battery depletes or fails, eliminating the need for complex battery management systems.
2Reliability
If a sealing member is added to prevent moisture ingress, then reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
A sealing member in the form of a flexible membrane or thin film is used to seal the interface between the disposable base and reusable module. This provides effective moisture protection while maintaining ease of manufacture through simple sealing structures that can be integrated into the modular design without complex manufacturing processes.
3Loss of substance
If the sensor electronics module is made reusable, then loss of substance is reduced, but ease of repair deteriorates
Solution Approach 1:
The device is segmented into disposable and reusable parts with a clear interface. The reusable sensor electronics module can be easily detached and replaced on the disposable base, providing an simple repair solution that avoids complex repair procedures while maximizing component reuse.
Data Source
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AI summary
An analyte sensor system is provided. The system includes a base configured to attach to a skin of a host. The base includes an analyte sensor configured to generate a sensor signal indicative of an analyte concentration level of the host, a battery, and a first plurality of contacts. The system includes a sensor electronics module configured to releasably couple to the base. The sensor electronics module includes a second plurality of contacts, each configured to make electrical contact with a respective one of the first plurality of contacts, and a wireless transceiver configured to transmit a wireless signal based at least in part on the sensor signal. The system includes a first sealing member configured to provide a seal around the first and second plurality of contacts within a first cavity. Related analyte sensor systems, analyte sensor base assemblies and methods are also provided.