Method for delivering medication into an arterial wall for prevention of restenosis
AssigneeSciMed Life Systems, Inc.
InventorsDennis M. Vigil, Robert E. Reiss, Peter Barath
Life of this patent
Estimating the term…
Abstract
A method for preventing a restenosis within a vessel wall requires a medicament be delivered at predetermined locations into the vessel wall and allowed to subsequently disperse in a predetermined pattern. To deliver the medicament, a catheter with an expanding member is advanced into the vasculature of a patient until the expanding member is located as desired. The expanding member is then expanded to force dispensers into the vessel wall to the proper depth. A medicament is then pumped through the dispensers to create a plurality of equally spaced, localized medicinal deliveries which subsequently disperse to medicate an annulus shaped volume within the vessel wall.
Claims28
A method for releasing fluid medicaments into a vessel wall of a patient at a treatment site, the method comprising the steps of:
- providing an expanding member defining an axis and having a plurality of dispensers mounted on said expanding member for movement therewith, said dispensers having one or more side openings 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 vessel wall;
- and
- providing a fluid medicament and releasing said fluid medicament through said side openings of said dispensers into the vessel wall for a substantially circumferential dispersion of said fluid medicament into said vessel wall.
A method for releasing fluid medicaments into a vessel wall of a patient at a treatment site, 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 having one or more side openings
- 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 vessel wall;
- and
- providing a fluid medicament and releasing a fluid medicament through said side openings of said dispensers into the vessel wall for dispersion of said fluid medicament into said vessel wall.
A method for releasing fluid medicaments into a vessel wall of a patient at a treatment site, 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 made of a porous material;
- 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 vessel wall;
- and
- providing a fluid medicament and releasing a fluid medicament through said dispensers into the vessel wall for dispersion of said fluid medicament into said vessel wall.
Dependencies are inferred from the claim text.