Patent ID: 8808236
Filing Date: 2014-08-19
Classification: A61M

Abstract:
1. An apparatus for treating tissue at a target site, the apparatus comprising: an inner cannula having proximal and distal regions and an inflation lumen disposed therein; an outer cannula having proximal and distal regions, wherein the outer cannula is disposed substantially co-axially over the inner cannula to form a delivery channel therebetween; an inner balloon member disposed on the distal region of the inner cannula, the inner balloon member having uninflated and inflated states; an outer balloon member disposed substantially over the inner balloon member; a plurality of pockets on a surface of the outer balloon member; and a plurality of needles, where at least one needle is associated with at least one of the plurality of pockets, where the inflation lumen is sized to receive an inflation fluid to inflate the inner balloon member and cause the plurality of needles to engage tissue, where each of the plurality of needles comprise openings sized to disperse a therapeutic agent, received via the delivery channel and the plurality of pockets, into the tissue, and where each of the plurality of pockets comprise a bulbous shape formed integrally into the outer balloon member.