US 11,694,578 B2
Lung simulator
François Caron, Laval (CA); Myriam Bonneville, Montréal (CA); Jean-Sebastien Flamand, Montréal (CA); and Yanick Fradette, St-Constant (CA)
Filed by CAE Healthcare Canada Inc., St-Laurent (CA)
Filed on Mar. 29, 2021, as Appl. No. 17/216,664.
Prior Publication US 2022/0309957 A1, Sep. 29, 2022
Int. Cl. G09B 23/30 (2006.01); G09B 23/32 (2006.01)
CPC G09B 23/303 (2013.01) [G09B 23/32 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A lung simulator comprising:
a lung bladder connectable to a ventilation source;
a compliance bladder having a variably adjustable volume;
a biasing member;
at least two movable plates; and
a frame supporting and interconnecting said lung bladder, said compliance bladder, said biasing member and said at least two movable plates such that in use, said biasing member and said compliance bladder constantly engage said lung bladder to exert a pressure on said lung bladder through said at least two movable plates that increases with the volume of said lung bladder from an initial pressure on said lung bladder when said lung bladder is empty, said initial pressure increasing with said variably adjustable volume of said compliance bladder, to an increasingly higher pressure on said lung bladder as said lung bladder is filled, thereby imparting to said lung bladder a selected compliance similar to that of a lung to be simulated and adjustable by controlling said adjustable volume of said compliance bladder.