Patent ID: 9555183
Date: 2017-01-31
CPC Classifications: A61M

Claim:
1. A method of delivering a medicament to a limb of a patient body in a retrograde orientation, the method comprising: inserting a perfusion catheter into a limb vein of the limb circulatory system in a retrograde position, wherein the perfusion catheter comprises a distal elongate element defining a plurality of ports; disposing the distal elongate element so as to span a plurality of venous valves; inserting a collection catheter into a limb artery of the limb circulatory system in an antegrade position; isolating a flow of blood within the limb from a flow of a systemic flow of blood; circulating substantially all of a blood flow of the limb circulatory system by collecting the blood flow with the collection catheter and delivering the blood flow with the perfusion catheter; and perfusing a medicament to the limb circulatory system with the perfusion catheter; therein the distal elongate element comprises a coiled spring defining the plurality of ports.