Method and apparatus for mixing a gas containing nitric oxide wi

Details Method and apparatus for mixing a gas containing nitric oxide wi Method and apparatus for mixing a gas containing nitric oxide wi

1997-08-05

1999-02-16

Weiss, John G.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820314, 12820325, 12820322, 12820422, A61M 1500

Patent

active

058710094

ABSTRACT:
During the administration of NO to a patient, NO reacts with oxygen in the respiratory gas to form NO.sub.2. Since NO.sub.2 is a toxic gas, minimizing the formation of this gas is important. A previously unknown property of NO is that an initial amount of NO.sub.2 is formed when NO and O.sub.2 mix. By adding NO to respiratory gas at a number of spaced-apart mixing points, the total initial amount of NO.sub.2 formed can be reduced. In a method and a device for mixing and administering NO, the gas containing NO is supplied to a flow divider for distributing the flow and sending sub-flows to a number of various mixing points.

REFERENCES:
patent: 4936297 (1990-06-01), Greiff et al.
patent: 5427797 (1995-06-01), Frostell et al.
patent: 5522381 (1996-06-01), Olsson et al.
patent: 5531218 (1996-07-01), Krebs
patent: 5558083 (1996-09-01), Bathe et al.
patent: 5619986 (1997-04-01), Werner et al.

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