Wearable cardiac defibrillator (WCD) system controlling conductive fluid deployment
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United States of America Patent
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Oct 11, 2022
Grant Date -
Apr 23, 2020
app pub date -
Dec 17, 2019
filing date -
Jan 23, 2013
priority date (Note) -
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Abstract
In some embodiments, a wearable medical device system includes a processor configured to determine whether a patient requires electrical therapy to be provided via a plurality of therapy electrodes, the electrical therapy comprising discharging at least a portion of a stored electrical charge from an energy storage module, and if so, cause a fluid deploying mechanism to deploy a portion of the stored fluid to an interface between at least two therapy electrodes and the patient's skin prior to providing the electrical therapy, the deployed portion of fluid adapted to decrease the impedance measured by an impedance measurement circuit, and cause the fluid deploying mechanism to deploy an additional portion of fluid in response to the impedance measured by the impedance measurement circuit increasing above a threshold during the electrical therapy.
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