Patent ID: 8190252
Filing Date: 2012-05-29
Classification: A61K,A61M,A61N

Abstract:
1. A system for transdermal delivery of active agents for therapeutic and medicinal purposes, the system comprising: a power source that provides a charged balanced alternating output current that varies between a first current value and a second current value; a pair of electrode assemblies, each electrode assembly being configured to be held in contact with a skin layer of a user, and wherein each electrode assembly includes an electrode that is coupled to the power source to receive the output current; wherein at least one of the electrode assemblies in the pair includes a medium that carries an active agent having a charge, the medium being provided on the at least one electrode assembly to enable the output current to repel the active agent into the skin layer for a duration in which the output current has a polarity that is the same as a polarity of the active agent; and wherein the power source is configured to provide the output current in a waveform that is asymmetrical, so that a duration in which the output current has the polarity that is the same as the polarity of the active agent is longer than a duration when the minimum value of the output current is zero or negative.