Disabling circuit for an iontophoretic system
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United States of America Patent
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Mar 27, 2001
Grant Date -
N/A
app pub date -
Apr 4, 1997
filing date -
Apr 4, 1997
priority date (Note) -
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Abstract
An apparatus and a corresponding method for the iontophoretic delivery of drugs that operates only when the supply voltage is higher than a predetermined threshold is provided. The apparatus includes a current control circuit for controlling the current in an iontophoretic patch, and a supply voltage detection circuit. When a low supply voltage is detected, the current control circuit is disabled, which stops the iontophoretic current, thereby stopping the delivery of drugs.
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