Patent ID: 6599267
Filing Date: 2003-07-29
Classification: A61B,A61M

Abstract:
A catheter for delivering a therapeutic substance to a location within a vascular lumen, comprising:an elongated member having a proximal end, a distal end, and defining a central axis; a substance delivery lumen disposed extending along said elongated member to at least one injection port; a surface for applying a force for causin said at least one injection port to move between a first position and a second position, wherein said injection port is substantially aligned parallel to said central axis at said first position and wherein said injection port is substantially aligned perpendicular to said central axis at said second position; wherein said surface for applying a force comprises a balloon coupled to a balloon lumen, and an elastomer sleeve surrounding at least a portion of said elongated member, at least a portion of said substance delivery lumen, and at least a portion of said balloon lumen.