A safe expiratory valve for anaesthesia and artificial ventilation

Wright, B.M.

Lancet 1(8121): 854-855

1979


ISSN/ISBN: 0140-6736
PMID: 86098
Document Number: 142755
A patient connected to an anesthetic machine or a ventilator is cut off from the atmosphere in a closed system in which excessive pressures can be easily generated. Unless an efficient safety valve is fitted, the patient is in a hazardous situation. A modified Heidbrink valve was quite acceptable in routine anesthetic use.

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