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Acta Anaesthesiol Scand · Apr 1985
Simulated spontaneous breathing. A new model for testing anaesthetic circuits.
- H Zetterström, L O Jonsson, and H Kronander.
- Acta Anaesthesiol Scand. 1985 Apr 1;29(3):265-8.
AbstractA carbon-dioxide-producing lung model capable of simulating spontaneous breathing is presented. It consists of a piston in a cylinder, a mixing chamber and a dead space volume. The piston is driven by a direct-current motor controlled by a micro-processor and a servo unit. Respiratory waveform and rate, tidal volume, carbon dioxide production and dead space are easily adjustable within a wide range. The model is easy to handle and accurately mimics a given breathing pattern. It seems suitable for investigations of rebreathing and carbon dioxide elimination in different anaesthetic circuits.
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