Patent ID: 8366664

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 in communication with at least one needle-though port in a distal shaft section; and b) a support member mounted to the shaft at a first location longitudinally adjacent to the needle-through port, comprising a plurality of articulating arms, each arm having an end fixedly secured relative to the shaft, and an opposite free end to form an anchor end section of the arm, and the arm is biased to pivot at the fixed 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.