Patent ID: 6597946
Filing Date: 2003-07-22
Classification: A61N

Abstract:
A device for facilitating transdermal passage of a substance through skin of a subject, comprising:one or more electrodes, which are adapted to be placed at respective sites on the skin; and a control unit, which is adapted: to drive at least some of the one or more electrodes to apply to respective ones of the sites on the skin a current capable of ablating stratum corneum epidermidis of the skin, so as to facilitate transdermal passage of the substance through the skin, to designate at a first time a first number of the one or more electrodes to drive to apply the current, responsive to a desired rate of passage of the substance during a first time period, and to designate at a second time a second number of the one or more electrodes to drive to apply the current, responsive to a desired rate of passage of the substance during a second time period, the second number being different from the first number.