Agent delivery catheter having articulating arms
AssigneeAbbott Cardiovascular Systems Inc.
InventorJesus Magana
Life of this patent
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Abstract
An agent delivery catheter which has a support member comprising at least one articulating arm having an end fixedly secured relative to the shaft and having an anchor end section opposite to the fixed end. The articulating 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 laterally away from the shaft and the anchor end section contacts the patient's body lumen wall, to support the shaft in the body lumen during delivery of an agent, for example by injection from a needle extended from the catheter into the wall of the body lumen.
Claims15
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 fixed end away from the shaft to transform from a low profile configuration to a high profile configuration in which the arm extends laterally 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.
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, and at least one needle-though port in a side of a distal shaft section for lateral egress of the needle, such that the needle has a retracted and extended configuration;
- and
- b) a distal support member comprising at least one distal articulating arm at a first location distally adjacent to the needle-through port, and a proximal support member having at least one proximal articulating arm at a second location proximally adjacent to the needle-through port, and each arm has an end fixedly secured relative to the shaft, and has a bifurcation which bends away and then back to an axis of the arm to form a substantially diamond shaped anchor end section, and has an opposite end at a tip of the diamond shaped anchor end section not fixedly secured to the shaft, and 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 laterally away from the shaft and the anchor end section contacts, without piercing, the patient's body lumen wall to support the shaft proximal and distal to the needle-though port in the body lumen.
Dependencies are inferred from the claim text.