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Canadian Journal of Anesthesia, Vol 6, 219-226, Copyright © 1959 by Canadian Anesthesiologists' Society

The Selection of a Mechanical Ventilator

H BARRIE FAIRLEY MB, B.S.(LOND.) F.F.A.R.C.S.(ENG.)1

1 Department of Anaesthesia, University of Toronto and Toronto General Hospital

(1) An attempt has been made to discuss the elementary physiological requirements of a mechanical ventilator.

(2) The types of machine available are grouped and it is shown that volume constant–pressure variable machines provide the most satisfactory ventilation.

(3) The motive forces used and the machine circuits are described in outline.

(4) Special features available on (a) operating room machines and (b) respiratory therapy machines are described.

(5) A table is appended, showing certain of the features available on many machines.

Note:

Recently a patient in the Toronto General Hospital Respiratory Unit (1), with bilateral pneumonia and a bronchopleural fistula, required stroke volumes considerably in excess of 1,000 ml to maintain a normal arterial pCO2






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Copyright © 1959 by the Canadian Anesthesiologists' Society.