The authors suppose that the intermittent ventilation (IMV) may be provided by the connection of an additional respiratory appliance made on the basis of a standard narcosis attachment of "Polynarcon" type with a respirator "PO" and the patient. A specific feature of this modified respiratory appliance is the bellows which fulfiles the function of a reserved capacity for a breath and a damper when in the smoothed out (hung up) state. The intubation tube is fastened to the T-joint adapter of the narcosis attachment (the scheme is shown), the hose being detached from the expiration valve and connected with the respirator T-joint adapter (to the place of the intubation tube). On the termination of the forced breath the patient can (if he has enough force to open the expiration valve) fulfill a self-dependent breath from the additional respiration appliance (the expiration is fulfilled into the respirator as during the forced breath). A method of realization of IMV in the "PO" type respirators which have been produced in lots by the "Krasnogvardeets" firm since 2000-2002 is described.
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