US 12,217,624 B2
Lung simulator for teaching and training
Josef X. Brunner, Chur (CH); and Patrick Büchele, Azmoos (CH)
Assigned to NEOSIM AG, (CH)
Appl. No. 17/049,016
Filed by NEOSIM AG, Zizers (CH)
PCT Filed Apr. 11, 2019, PCT No. PCT/CH2019/050007
§ 371(c)(1), (2) Date Oct. 19, 2020,
PCT Pub. No. WO2019/200493, PCT Pub. Date Oct. 24, 2019.
Claims priority of application No. 483/18 (CH), filed on Apr. 17, 2018.
Prior Publication US 2021/0241657 A1, Aug. 5, 2021
Int. Cl. G09B 23/30 (2006.01); G09B 23/28 (2006.01)
CPC G09B 23/288 (2013.01) 22 Claims
OG exemplary drawing
 
1. A physical lung model (PLM) for training and teaching, comprising:
a lung compartment which is delimited by:
an enlargeable and reducible piston for enlarging and reducing the volume of the lung compartment;
a lid sealing a first end of the piston; and
a support body carrying the piston, a second end of the piston sealingly attached to the support body;
an airway leading from the lung compartment to an airway opening;
a mechanical stop attached to the piston and partitioning the piston into a first enlargeable and reducible section and a second enlargeable and reducible section, the mechanical stop describing a path of movement during enlargement of the lung compartment; and
a lever for blocking movement of the stop at a predefined point on the path of movement during enlargement of the lung compartment and, thereby, restricting the enlargement of the lung compartment.