Patent ID: 8187222
Filing Date: 2012-05-29
Classification: A61M

Abstract:
1. A drug delivery device comprising an elongated tubular member, an elongated actuation member and a curved elongated non-balloon drug delivery member that is adapted for expansion in a body lumen for drug delivery, followed by contraction and removal from the body lumen, said curved elongated drug delivery member progressing from a radially compressed configuration to a radially expanded configuration upon actuation in vivo, wherein said curved elongated drug delivery member is in the form of a helix, wherein said helix decreases in stiffness as one proceeds from its proximal end to its distal end, wherein said drug delivery member is attached at or near its proximal end to a position at or near a distal end of said elongated tubular member, wherein said elongated actuation member is attached at or near its distal end to a position at or near a distal end of said drug delivery member, and wherein said drug delivery member is placed in a radially expanded configuration by distally advancing the elongated tubular member, by proximally retracting the elongated actuation member, or a combination of both.