Patent ID: 7488314

Claim:
A method for delivering a medicament to an obstruction in a body passageway comprising: providing a mechanical dilatation and drug delivery catheter, said catheter having an expansion member coated with a medicament, said expansion member being expandable between a first contracted configuration and a second expanded configuration; applying electrical energy to said expansion member to electrically bond the medicament to said expansion member; inserting the mechanical dilatation and drug delivery catheter within a body passageway; advancing the mechanical dilatation and drug delivery catheter to a predetermined site within the body passageway; and applying a force on said coated expansion member in an axial direction to move said expansion member between said first contracted configuration to said second expanded configuration wherein said expansion member dilates said obstruction or body passageway and delivers a medicament to an said obstruction or body passageway, wherein the electrical energy is applied prior to insertion of the mechanical dilation and drug delivery catheter into the body passageway.