CPC A61M 16/0677 (2014.02) [A61M 16/009 (2013.01); A61M 16/0666 (2013.01); A61M 16/0672 (2014.02); A61M 16/0875 (2013.01); A61M 16/10 (2013.01); A61M 16/104 (2013.01); A61M 16/1005 (2014.02); A61M 16/122 (2014.02); A61M 16/125 (2014.02); A61M 16/204 (2014.02); A61M 16/208 (2013.01); A61M 16/101 (2014.02); A61M 2016/0021 (2013.01); A61M 2016/0027 (2013.01); A61M 2202/0208 (2013.01); A61M 2202/0266 (2013.01); A61M 2202/0275 (2013.01); A61M 2202/0283 (2013.01); A61M 2205/0216 (2013.01); A61M 2205/3303 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/75 (2013.01); A61M 2210/0618 (2013.01)] | 18 Claims |
1. A nasal cannula for therapeutic gas delivered to a patient in need thereof, comprising:
a first lumen, a second lumen, and a third lumen;
wherein the first lumen is a first therapeutic gas lumen for delivering a first therapeutic gas to a patient in need thereof,
wherein the second lumen is a triggering lumen, and
wherein the third lumen is a second therapeutic gas lumen for delivering a second therapeutic gas to the patient; and
a cannula nosepiece allowing separate flow paths to the patient for at least one of (i) the first therapeutic gas lumen, (ii) the triggering lumen, and (iii) the second therapeutic gas lumen,
wherein the first therapeutic gas lumen comprises a material selected from the group consisting of polyvinylidene chloride (PVDC) and ethylene vinyl alcohol (EVOH),
wherein the first therapeutic gas lumen comprises a co-extrusion of polyvinyl chloride (PVC) and EVOH or a co-extrusion of PVC and PVDC.
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