Continuous Analyte Meter Switch Activator for Battery Life Extension
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Solution Overview
Problem
Existing continuous analyte meters face challenges in efficiently managing the power supply to electrochemical sensors, leading to potential battery waste and reduced lifespan.
Innovation Solution
A continuous analyte meter with a switch activator that synchronizes the power supply start with the operation of an actuator, ensuring power is only initiated when the transmitter is attached or the needle is retracted, thus preventing battery waste and extending its lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If power supply is continuously provided to the transmitter, then the electrochemical sensor can operate continuously, but battery lifespan is reduced due to waste of power
Solution Approach 1:
The power supply is activated periodically based on operational states rather than continuously. The switch is turned on when the inserter is attached to the body (insertion state) and turned off when detached, creating a periodic power supply pattern that matches actual usage requirements and extends battery lifespan.
Solution Approach 2:
The system uses feedback from the actuator's position (via the switch activator) to control the power supply state. When the actuator indicates the inserter is attached, the switch turns on power supply; when detached, power supply turns off. This feedback mechanism ensures power is supplied only when needed.
2Speed
If power supply is started immediately upon device activation, then system responsiveness is improved, but battery is wasted when transmitter is not attached
Solution Approach 1:
The switch activator is pre-positioned within the actuator mechanism, ready to activate the switch immediately when the inserter is attached. This preliminary positioning allows for instant power supply activation without delay, while still preventing power waste when the inserter is not attached.
3Measurement precision
If the switch is manually operated, then power control precision is improved, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The system performs self-service by automatically controlling power supply based on the actuator's position. The switch activator is automatically actuated by the mechanical movement of the actuator during insertion and retraction, eliminating the need for manual user intervention while maintaining precise power control.
Data Source
AI summary
A continuous analyte meter may include an electrochemical sensor invasively inserted into the skin, a transmitter including a main substrate to which a battery is connected and a housing in which the main substrate is accommodated, the housing being attached to the skin and the main substrate controlling a signal measured by the electrochemical sensor, a needle inserting the electrochemical sensor into the skin, and an inserter provided with an actuator that moves the transmitter and the needle from a first position to a second position so that the needle penetrates the skin or retracts the needle from the second position to a third position.