Patent ID: 7287319

Claim:
A method of making an integral reservoir housing for an iontophoretic drug delivery device comprising the steps of: providing a sheet of material containing at least one region of conductive material and at least one region of non-conductive material; said conductive and non-conductive regions forming at least one interface where said conductive and non-conductive material meet, and the sheet of material including a planar surface portion that includes a conductive surface portion and a nonconductive surface portion; forming a reservoir blank out of said sheet of material, said reservoir blank having at least one conductive region and at least one non-conductive region; forming a first cavity in said reservoir blank, said first cavity at least partially formed out of a conductive region of said reservoir blank; forming a second cavity in the sheet of material; and wherein said first cavity and said second cavity are separated by at least one region of non-conductive material.