Patent ID: 8021332

Claim:
An agent delivery catheter configured for delivering an agent to an injection site in a wall of a patient's body lumen, comprising: a) an elongated shaft having a proximal end, a distal end, a needle-through lumen slidably containing a needle therein in communication with at least one needle-though port in a distal shaft section, such that the needle has a retracted and extended configuration; and b) a support member mounted to the shaft at a first location longitudinally adjacent to the needle-through port, comprising at least one articulating arm having an end fixedly secured relative to the shaft, and an opposite free end bent at a substantially right angle to form an anchor end section of the arm, and the arm is biased to pivot at the fixedly secured end away from the shaft to transform from a low profile configuration to a high profile configuration in which the arm extends substantially perpendicularly away from the shaft and the anchor end section contacts, without piercing, the patient's body lumen wall to support the shaft adjacent to the needle-though port in the body lumen, and the arm pivots through an arc and the opposite free end is bent in a direction substantially perpendicular to the arc to form the anchor end section.