G - Physics
09
B
G09B 23/32 (2006.01) G09B 9/00 (2006.01) G09B 23/28 (2006.01)
Patent
CA 2121056
A CPR mannequin for practising cardiopulmonary resuscitation of a human has a simulated human head and neck portion with an air passage extending from a mouth opening to neck opening in an end of the neck remote from the head, and an inflatable simulated human chest portion secured to the neck and having a flexible wall member simulating a chest.which, rises and falls with inflation and deflation of the chest portion. The inflatable chest portion has an air capacity representative of a lung capacity of a human adult, and a further air passage connecting the air passage in the neck to the inflatable chest portion. A flow control valve in the further air passage operates to permit air blown through the mouth opening to pass through the air passage in the head and neck portion and through the further air passage into the chest portion to inflate the chest portion and cause the flexible chest wall member to rise, and operates to cause air from the chest portion when deflating to be released to the atmosphere without passing back into the head and neck portion. The inflatable chest portion may have a releasable retainer which operates before release to reduce the air capacity of the chest portion to a volume representative of the lung capacity of a human child, the releasable retainer being released by air pressure caused by continued blowing of air into the mouth opening when the chest portion has been inflated to an extent representative of the lung capacity of a human child. An angle responsive air flow prevention device may be located between the mouth opening and the inflatable chest portion to prevent flow of air from the mouth opening to the inflatable chest portion when the head and neck portion is not sufficiently rearwardly inclined relative to the chest portion as is required in real life cardiopulmonary resuscitation and to permit air flow when the head. and neck portion is rearwardly inclined as required. The mannequin may also include a resiliently compressible simulated human heart portion located beneath the flexible chest wall member.
Actar Airforce Inc.
Moffat & Co.
LandOfFree
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