Sensor assembly of a microneedle array-based continuous analyte monitoring device

Inventors

ALONSO-SOSKI, Daniel • Micu, Anderson • Li, Yan • Griffith, Christopher • FUCHS, Jennifer Ruth Walters

Assignees

Biolinq Inc

Abstract

Aspects of the current subject matter are directed to a sensor assembly of an analyte monitoring device including one or more microneedle arrays. Aspects are directed to components and architecture of a sensor assembly to implement power and processing aspects of a microneedle array-based continuous analyte monitoring device for the detection and measuring of an analyte. A source of a power-on event is determined, and the analyte monitoring device is transitioned to a mode that corresponds to the determined source. When a power-on event is determined to be a valid power-on event, the analyte monitoring device is transition to a mode that corresponds to a type of the valid power-on event.

Core Innovation

The invention relates to an analyte monitoring device with an analyte sensor configured to be inserted into skin of a user and an onboard controller. The controller determines whether a source of a power-on signal is a first power source or a second power source, where the first power source is a battery and the second power source is an antenna.

In response to determining that the power-on signal source is not the first power source, the controller determines whether the power-on signal source is the second power source. When the power-on signal source is determined to be the antenna, the analyte monitoring device transitions to a powered-off mode of operation, with dependent operation that can include reconfiguration parameters based on receiving over-the-air transmissions.

The disclosure further describes using non-analyte sensors and associated thresholds to determine a usable state, and using power connect circuit behavior conditioned on valid sensor conditions. The device architecture also supports microneedle-array-based continuous analyte monitoring with integrated low-power electronics, including conversion of microneedle analog currents to digitized values and microneedle insertion confirmation using analog front end thresholding and electrode switching confirmation.

Claims Coverage

The independent claims cover controller-based power-source identification and powered-off transition for an analyte monitoring device with an analyte sensor configured to be inserted into skin. Three independent claims are directed to determining whether a power-on signal source is a battery or an antenna, and transitioning to a powered-off mode when the antenna is identified as the source.

Across the independent claims, the core inventive coverage is the controller-based discrimination of power-on signal source and the conditional transition to powered-off mode when the antenna is identified or confirmed as the source of power.

Stated Advantages

Documented Applications