Method for delivering medication into an arterial wall for prevention of restenosis

A method for releasing fluid medicaments into a vessel wall of a patient to treat for a vessel disease at a treatment site, the vessel wall including a plurality of internal layers with one of the layers being a target layer, the method comprising the steps of:

• providing an expanding member defining an axis and having a plurality of dispensers mounted thereon for movement therewith, said dispensers being positioned in a plane oriented substantially perpendicular to said axis;
• advancing said expanding member through the vessel to the site;
• moving said expanding member between a first configuration wherein said dispensers are positioned substantially adjacent said axis of said expanding member, and a second configuration wherein said dispensers are radially extended from said axis for penetrating into the target layer of the vessel wall;
• and
• releasing said fluid medicament through said dispensers into the target layer of the vessel wall for a substantially circumferential dispersion of said fluid medicament through said target layer of said wall around the lumen of the vessel.

A method for releasing fluid medicaments into an arterial wall of a patient to treat for an arterial disease at a treatment site, the arterial wall including a media layer, the method comprising the steps of:

• providing an expanding member defining an axis, and having a plurality of dispensers mounted thereon for movement therewith, said dispensers being positioned in a plane oriented substantially perpendicular to said axis;
• advancing said expanding member through the artery to the site;
• moving said expanding member between a first configuration wherein said dispensers are positioned substantially adjacent said axis of said expanding member, and a second configuration wherein said dispensers are radially extended from said axis for penetrating into the media layer of the arterial wall;
• and
• releasing said fluid medicament through said dispensers into the target layer of the arterial wall for a substantially circumferential dispersion of said fluid medicament through said media layer of said wall around the lumen of the artery.