Method and apparatus for supplying fresh gas to a patient during manual ventilation
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United States of America Patent
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Mar 12, 1996
Grant Date -
N/A
app pub date -
Jan 31, 1994
filing date -
Feb 5, 1993
priority date (Note) -
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Abstract
In a method for supplying fresh gas in manual ventilation of a patient and in a ventilator system for practicing the method, the supply of fresh gas to a breathing bag is regulated. During inspiration, the breathing bag is squeezed, imposing an inspiration on the patient. A detector at the breathing bag senses when the patient exhales, and an identical flow of gas is fed to the system via an inspiratory valve, the flow of fresh gas is directed into the breathing bag and expired gas is prevented from entering the breathing bag. An expiratory valve simultaneously opens to conduct expired gas out of the system.
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