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A new ventilator converter with the Siemens Servo Ventilator ‐ evaluation in a lung model
Author(s) -
Hesselvik J. F.,
Bengtsson M.,
Johnson A.
Publication year - 1992
Publication title -
acta anaesthesiologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 107
eISSN - 1399-6576
pISSN - 0001-5172
DOI - 10.1111/j.1399-6576.1992.tb03426.x
Subject(s) - medicine , bellows , siemens , respiratory minute volume , tidal volume , lung , anesthesia , ventilation (architecture) , lung ventilation , respiratory system , mechanical engineering , physics , quantum mechanics , engineering
A ventilator converter device (Anmedic) for connecting a non‐rebreathing ventilator (Servo Ventilator 900 B; Siemens‐Elema) to a circle anaesthesia system was evaluated in a lung model. Recorded minute ventilation was slightly lower than dialled in most cases. We furthermore found inadequate expiratory expansion of the ventilator converter bellows, with progressive loss of tidal volume and consequently recorded minute volume, when fresh gas flow to the circle system was low (1 l±min ‐1 ), expiratory time was short (<40%) and respiratory obstruction was present.