Patent ID: 8646445

Claim:
A system for delivering a therapeutic amount of nitric oxide, comprising: a liquid reservoir containing dinitrogen tetroxide; a tube coupled to the reservoir; a first ribbed tube coupled to the tube, wherein the first ribbed tube comprises: a plurality of hollow ribs, wherein each rib comprises a volume, a base and a length that is a distance across the base of the rib; and a surface-active material with a reducing agent, wherein a volume of the surface-active material is within each rib and a height of the surface-active material within each rib is a distance above the base of each rib the surface-active material extends into the rib, and wherein the length of each rib is less than twice the distance above the base of each rib the surface-active material extends into the rib, and the volume of each rib is greater than the volume of the surface-active material within each rib; and a patient interface coupled to the first ribbed tube, wherein the first ribbed tube is configured to convert nitrogen dioxide in a gas flow into nitric oxide prior to reaching the patient interface.