Patent ID: 7488313
Filing Date: 2009-02-10
Classification: A61M,A61N,A61P

Abstract:
1. A method for dilating and delivering a medicament to an obstruction in a body passageway which comprises the steps of: advancing a mechanical dilatation catheter to a predetermined site within a body passageway, said catheter having a cylindrically shaped expansion member coated with a medicament and an iontophoretic transport means, said cylindrically shaped expansion member being moveable between a first contracted configuration wherein said member is defined by a first dimension extending in a radial direction, and a second expanded configuration wherein said expansion member is defined by a second dimension extending in said radial direction; applying a force on said cylindrically shaped expansion member in an axial direction to move said expansion member between said first contracted configuration to said second expanded configuration wherein said obstruction is dilated; operating said iontophoretic means to deliver said medicament into said obstruction or body passageway; further comprising, prior to advancing the catheter, the step of applying electrical energy to said expansion member to cause said medicament to electrically bond to said expansion member.