Lung simulator
OwnerFrançois Caron, Myriam Bonneville +2inventors
InventorsFrançois Caron, Myriam Bonneville, Jean-Sebastien Flamand, Yanick Fradette
Life of this patent
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Abstract
A lung simulator including a lung bladder, a biasing system providing a relaxed expiration force to the lung bladder with a positive end-expiratory pressure and simulating lung compliance, and a frame holding the lung bladder and biasing member in position. The lung bladder may be inflated and deflated between a positive end-expiratory pressure and a peak inspiratory pressure through the means of a ventilator, a bag mask or mouth to mouth ventilation and may produce a pressure-volume curve similar to that of a lung when the lung bladder is connected to a ventilation source.
Claims21
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.
A lung simulation system for simulating ventilated lung breathing mechanics, the system comprising:
- a manakin;
- and
- a lung simulator, said lung simulator comprising:
- a lung bladder connectable to a ventilation source;
- a compliance bladder having an 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 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 compliance similar to that of a lung and adjustable by controlling said adjustable volume of said compliance bladder.
A lung simulation system for simulating ventilated lung breathing mechanics, the system comprising:
- a ventilator;
- and
- a lung simulator, said lung simulator comprising:
- a lung bladder connectable to a ventilation source;
- a compliance bladder having an 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 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 compliance similar to that of a lung and adjustable by controlling said adjustable volume of said compliance bladder,
- wherein said ventilator is connectable to said lung simulator to simulate one or more of a controlled ventilation, assisted ventilation and autonomous ventilation, or a combination thereof.
Dependencies are inferred from the claim text.