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1. (WO2018031183) WAKE-UP BATTERIES FOR INVASIVE BIOSENSORS

Pub. No.:    WO/2018/031183    International Application No.:    PCT/US2017/042052
Publication Date: Fri Feb 16 00:59:59 CET 2018 International Filing Date: Sat Jul 15 01:59:59 CEST 2017
IPC: A61B 5/1486
A61B 5/145
Applicants: VERILY LIFE SCIENCES LLC
Inventors: BIEDERMAN, William
LIU, Zenghe
Title: WAKE-UP BATTERIES FOR INVASIVE BIOSENSORS
Abstract:
Example biosensor devices having wake-up batteries and associated methods are disclosed. One example device includes a biosensor that has a first electrode for insertion into a subcutaneous layer beneath a patients skin, and a second electrode coupled to the first electrode for insertion into the subcutaneous layer, and a first battery to apply a voltage across the first and second electrodes, the first battery at least partially electrically decoupled from the electrodes. The device also includes a second battery having an anode material coupled to the first electrode for insertion into the subcutaneous layer, and a portion of the second electrode. The second battery is activatable upon immersion in an electrolytic fluid. The device also includes a wake-up circuit to receive a signal from the second battery and, in response, to electrically couple the first battery to the first and second electrodes to activate the biosensor.