Continuous Analyte Meter Power Switch Triggered by Inserter Separation
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Solution Overview
Problem
The timing of starting power supply to a transmitter in continuous analyte meters is critical for battery lifespan, as existing systems consume power during the inserter's shelf life, which is not optimized.
Innovation Solution
A switch mechanism is integrated into the transmitter that turns on power supply only after the inserter is separated from the skin, ensuring power is not consumed during insertion and extending battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If power supply is started when the inserter is in contact with the skin, then the transmitter can operate during insertion, but the battery lifespan is reduced due to unnecessary power consumption during shelf life
Solution Approach 1:
The switch is configured to be activated by the separable member before insertion, but power supply is actually started only after the separable member is separated from the skin. This preliminary configuration allows the system to be ready for operation while preventing unnecessary power consumption during the shelf life and insertion process.
Solution Approach 2:
The system automatically detects when the separable member has been separated from the skin and activates power supply at that moment. This self-service mechanism eliminates the need for manual power switching and ensures power is only consumed when actually needed for operation.
2Loss of energy
If power supply is delayed until after inserter separation, then battery lifespan is extended, but the transmitter cannot operate during the insertion process
Solution Approach 1:
The switch mechanism is pre-configured and ready to activate power supply immediately upon separation of the separable member. This preliminary preparation ensures that there is no delay in operational readiness while still preventing energy waste during the shelf life period.
3Loss of energy
If a switch mechanism is added to control power supply timing, then power consumption is optimized, but the device complexity increases
Solution Approach 1:
The switch mechanism automatically activates power supply based on the physical state of the separable member separation. This self-service approach optimizes power consumption without requiring complex control circuits or additional components, as the switch responds automatically to the mechanical state of the device.
Data Source
AI summary
Proposed is a continuous analyte meter, including 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 moving the transmitter and the needle from a first position to a second position so that the needle penetrates the skin. A switch turning on/off power supply of the battery to the main substrate or the electrochemical sensor is provided in the transmitter.