A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
A61N 1/30 (2006.01)
Patent
CA 2056015
The present invention provides an iontophoretic drug delivery device having electrode renewing features includes a housing having a first electrode, a second electrode, a circuit for providing electrical communication between the first and second-electrodes. The circuit is capable of engaging a source of current. Control means is provided for effecting the amount of current passing between the electrodes. A removable electrolyte reservoir is capable of holding electrolyte and removably engaging the housing so that one of the electrodes can contact electrolyte contained within the reservoir. A removable active agent reservoir is capable of holding an active agent for iontophoretic delivery. The active agent reservoir is capable of removably engaging the housing so that the active agent contacts one of the electrodes. The present invention also provides a method for renewing electrodes during delivery of an active agent from an iontophoretic system which comprises at least two electrodes and means for containing an active agent, which method comprises: a) delivering an active agent in connection with a first electrode which completes a circuit with a second electrode in connection with an electrolyte, and b) delivering an active agent from the second electrode by replacing the electrolyte with an active agent in connection with the second electrode and replacing the active agent with an electrolyte in connection with the first electrode.
Bock Carl Randolph
Sage Burton Henry Jr.
Becton Dickinson And Company
Gowling Lafleur Henderson Llp
LandOfFree
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