초록 ▼

A resuscitator comprises (a) a manually collapsible air receptacle having an air inlet and discharge outlet, (b) tubing sections extending in series and having an air inlet connectible in air passing relation with the receptacle inlet and discharge outlet, and an air outlet connectible in air passin

A resuscitator comprises (a) a manually collapsible air receptacle having an air inlet and discharge outlet, (b) tubing sections extending in series and having an air inlet connectible in air passing relation with the receptacle inlet and discharge outlet, and an air outlet connectible in air passing relation with a mask to be placed against a patient\s face, (c) first and second valves positioned in at least one tubing section so that the first valve opens and passes air to the receptacle when the second valve is closed, and so that the second valve opens and passes air from the receptacle to the mask when the receptacle is squeezed and the first valve is closed, and (d) an adjustable air bleed also being provided.

대표청구항 ▼

A resuscitator for ventilating a patient comprising: a ventilator mask means for sealingly surrounding the patient\s mouth and nose; a gas flow manifold having first, second, and third gas flow passage means for delivering ventilating gas from a source of ventilating gas to said mask means; means fo

A resuscitator for ventilating a patient comprising: a ventilator mask means for sealingly surrounding the patient\s mouth and nose; a gas flow manifold having first, second, and third gas flow passage means for delivering ventilating gas from a source of ventilating gas to said mask means; means for operatively coupling said third gas flow passage means to said mask means; a manually collapsible gas receptacle; means for operatively coupling said manually collapsible gas receptacle to said first gas flow passage means; said second gas flow passage means being in flow communication with a source of ventilating gas; said first gas flow passage means being operatively coupled to said third gas flow passage means and said second gas flow passage means being operatively coupled to said first gas flow passage means; first one-way flow valve means mounted intermediate said second and first gas flow passage means for preventing flow from said first gas flow passage means to said second gas flow passage means and allowoing flow from said second gas flow passage means to said first gas flow passage means; second one-way flow valve means mounted intermediate said first and third gas flow passage means for preventing flow from said third gas flow passage means to said first gas flow passage means and allowing flow from said first gas flow passage means to said third gas flow passage means; said first one-way flow valve means and said second one-way flow valve means being mounted so that when said manually collapsible gas receptacle is collapsed, said first one-way flow valve means prevents flow from said first gas flow passage means to said second gas flow passage means and said second one-way flow valve means allows from said first gas flow passage means to said third gas flow passage means and, when said manually collapsible gas receptacle expands, said first one-way flow valve means allows flow from said second gas flow passage means to said first gas flow passage means and said second one-way flow valve means prevents flow from said third gas flow passage means to said first gas flow passage means; said third gas flow passage means including gas outlet means and means for closing said gas outlet means when said second one-way flow valve means allows flow from said first to said third gas flow passage means; said gas flow manifold further including means for detecting air pressure within said third gas flow passage means and for defining a portion of a wall of said third gas flow passage means; and a wall of said third gas flow passage means having means for indicating the pressure detected by said air pressure detecting means.