Iontophoresis pharmaceutical delivery system

Abstract

This disclosure relates to an iontophoresis pharmaceutical delivery system comprising an array of individually addressable pharmaceutical delivery sub-systems. Each of the sub-systems comprises a delivery electrode that is insulated from electrodes of other sub-systems and a reservoir for holding the pharmaceutical to be delivered. A control circuit generates an electrical control signal and provides the electrical control signal to the delivery electrode of one the sub-systems to deliver a pharmaceutical transdermally by iontophoresis. With this array one delivery sub-system can be activated until its corresponding reservoir is depleted before activating another sub-system. Therefore, the amount of the pharmaceutical that has been delivered is known at least down to the number of reservoirs that have been depleted. Further, it is possible to simultaneously activate multiple sub-systems to increase the dose rate and to load different drug formulations into each sub-system thereby delivering multiple drugs simultaneously.

Dependencies are inferred from the claim text.