Method for supplying fresh gas during manual ventilation and a ventilator system for carrying out the method

摘要

The invention relates to a method for supplying fresh gas in manual ventilation of a patient and a ventilator system (2) for carrying out the method, the supply of fresh gas to a breathing bag (8) being regulated. During inspiration, the breathing bag (8) is squeezed, imposing an inspiration on the patient. A detector (16) at the breathing bag (8) senses when the patient exhales, and an identical flow of gas is fed to the system via an inspiratory valve (26), said flow of fresh gas streaming into the breathing bag (8) and preventing expired gas from entering the breathing bag (8). An expiratory valve simultaneously opens to conduct expired gas out of the system.