WEARABLE DEVICE FOR SENSING CHLORIDE IN SWEAT
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United States of America Patent
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Issued Date -
Dec 14, 2023
app pub date -
Jun 9, 2023
filing date -
Jun 9, 2022
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Abstract
A wearable device can include a sweat collection unit, and optionally, a sweat stimulation unit. The sweat collection unit includes at least one microfluidics channel to collect sweat from a user, a chamber to hold the sweat, and a loading chamber with sweat collection paper that attracts the sweat through the chamber. A chloride sensing unit located within the chamber includes a gold working electrode and a counter electrode that can determine if enough sweat is in the chamber and, if enough, the chloride concentration of the sweat can be determined based on electrochemical reactions in response to electrical signals applied through the electrodes. A controller of the device can notify a user to trigger the sweat stimulation unit if not enough sweat is in the chamber.
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