Monitoring electrode voltages in an implantable medical device system having daisy-chained electrode-driver integrated circuits
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United States of America Patent
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May 8, 2018
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app pub date -
May 5, 2017
filing date -
Oct 13, 2010
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Abstract
Electrode voltage monitoring circuitry for an implantable neurostimulator system having a plurality of electrode-driver integrated circuits (ICs) in provided. Electrodes from either or both ICs can be chosen to provide stimulation, and one of the IC acts as the master while the other acts as the slave. Electrodes voltages on the slave IC are routed to the master IC, and thus the master IC can monitor both electrode voltages on the slave as well as electrode voltages on the master. Such voltages can be monitored for a variety of purposes, and in particular use of such voltage is disclosed for determining the resistance between electrodes and to set a compliance voltage for stimulation.
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