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The use of the Penlon Nuffield 200 in a monoplace hyperbaric oxygen chamber
Author(s) -
LEWIS R. P.,
SZAFRANSKI J.,
BRADFORD R. H.,
SMITH H. S.,
CRABBE G. G.
Publication year - 1991
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/j.1365-2044.1991.tb09775.x
Subject(s) - medicine , hyperbaric oxygen , anesthesia , carbon monoxide poisoning , oxygen , surgery , medical emergency , poison control , organic chemistry , chemistry
Summary We modified a Penlon Nuffield 200 for use in a monoplace hyperbaric oxygen chamber by feeding back the chamber pressure to the reducing valve of the Nuffield 200. This provides a compensating mechanism, allowing the ventilator to deliver adequate tidal volumes at pressures of up to 3 atmospheres. We report the laboratory testing of the ventilator and our experience of ventilating two patients with carbon monoxide poisoning. Although compensation is not complete the modification is adequate for short‐term clinical use in patients in whom the airway is compromised but who need hyperbaric oxygen therapy.