IONTOPHORETIC DRUG DELIVERY DEVICE HAVING AN IMPROVED CONTROLLER

摘要

An iontophoretic system includes a medicament containing disposable patch (2) removably attached to a patient's skin (10) in combination with a controller mechanism (4). The patch (2) includes an anode (6) and a cathode (8), and holds an electrolyte and a medicament. The controller includes a controller circuit (20) which is coupled to the cathode and is adjustable to provide a desired current flow through the electrodes to drive the medicament to the skin of the patient. The controller (20) preferably includes a variety of functions to ensure safe and proper delivery of the medicament. The controller circuit (20) is preferably an application specific integrated circuit (ASIC) so as to provide a compact controller having increased reliability and reduced power consumption.