Method and apparatus for mixing a gas containing nitric oxide with a gas containing oxygen
US5871009A · kind A · utility
54Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1997 |
| Grant date | Feb 16, 1999 |
| Priority date | — |
| Expiry date | Aug 5, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2202/0275
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.