Predictable oxygen concentrations with the bird respirator
| Autor: | C. H. N. Macdonald |
|---|---|
| Rok vydání: | 1968 |
| Předmět: |
Ventilators
Mechanical business.product_category business.industry Partial Pressure Flow (psychology) Oxygen Inhalation Therapy Mixing (process engineering) chemistry.chemical_element General Medicine Oxygen law.invention Cartridge Anesthesiology and Pain Medicine Pressure measurement chemistry Anesthesiology law Environmental chemistry Anesthesia Medicine Limiting oxygen concentration Respirator Inspired gas business |
| Zdroj: | Canadian Anaesthetists’ Society Journal. 15:564-578 |
| ISSN: | 1496-8975 0008-2856 |
| DOI: | 10.1007/bf03004353 |
| Popis: | Experimentation with the Bird Mark 7 respirator using the Bird Parallel Inspiratory Fow Mixing Cartridge (999 1289) to provide varying concentrations of oxygen in the inspired gas mixture was carried out. It was found that changes in the absolute pressure did not interfere significantly with the predictability of the oxygen concentrations obtained. However, the oxygen level did vary with changes in flow, being influenced more specifically by the ratio between the flow through the cartridge and the flow through the respirator; i.e., the oxygen concentration was directly proportional to the flow through the cartridge and inversely proportional to the flow through the respirator. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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