A microprocessor-controlled gas mixing device
| Autor: | E. Palayiwa, D. Lindsay-Scott, P.J. Tyrrell, B.R. Sugg, Clive E.W. Hahn |
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| Rok vydání: | 1986 |
| Předmět: |
Back pressure
business.industry Computers Flow (psychology) Pulsatile flow Nitrous Oxide Mineralogy Solenoid Mechanics Equipment Design law.invention Oxygen Microprocessor Anesthesiology and Pain Medicine Microcomputers law Medicine Rotameter Vaporizer business Anesthesia Inhalation Mixing (physics) |
| Zdroj: | British journal of anaesthesia. 58(9) |
| ISSN: | 0007-0912 |
| Popis: | This paper describes the use of solenoid valves for the production of binary gas mixtures. The system is controlled by a microprocessor and is capable of delivering accurate flows and concen-trations of gases over the ranges commonly used in anaesthesia. Since the flow produced by the valves is pulsatile, a system for mixing the gases and smoothing the pulses is described. A back pressure regulator is fitted downstream of each of two mixing/damping chambers and a method of using this as a flow transducer is described. The advantages of this system over conventional rotameters are discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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