Iontophoresis electronic device having a ramped output current
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United States of America Patent
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-
Jul 11, 1995
Issued Date -
N/A
app pub date -
Dec 1, 1992
filing date -
Feb 1, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An iontophoresis controller is configured for connection to an iontophoresis electrode pair. The controller controls infusion of a selected dose of ionic drugs into a patient through the electrode pair during a treatment period. The controller includes an electrode driver channel having an electrode output configured for electrical connection to the electrode pair. The electrode driver channel delivers a substantially constant electrode output current at a selected treatment level through the electrode output during the treatment period. The electrode output current rises exponentially from approximately zero to the selected treatment level, remains at the selected treatment level during the treatment period, and then falls exponentially to approximately zero. A microprocessor controls operation of the electrode driver channel to generate the electrode output current during the treatment period.
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