US 12,268,819 B2
Ventilator with switching valve
Benjamin Adametz, Hamburg (DE); and Christof Goebel, Hamburg (DE)
Assigned to Loewenstein Medical Technology S.A., Luxembourg (LU)
Filed by Loewenstein Medical Technology S.A., Luxembourg (LU)
Filed on May 31, 2022, as Appl. No. 17/804,629.
Application 17/804,629 is a continuation of application No. 16/293,815, filed on Mar. 6, 2019, granted, now 11,351,333.
Claims priority of application No. 102018001888.2 (DE), filed on Mar. 8, 2018.
Prior Publication US 2022/0305229 A1, Sep. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 16/20 (2006.01); A61M 16/00 (2006.01); A61M 16/08 (2006.01); A61M 16/12 (2006.01); A61M 16/10 (2006.01)
CPC A61M 16/201 (2014.02) [A61M 16/0057 (2013.01); A61M 16/022 (2017.08); A61M 16/0883 (2014.02); A61M 16/12 (2013.01); A61M 16/208 (2013.01); A61M 16/0003 (2014.02); A61M 2016/0039 (2013.01); A61M 2016/0042 (2013.01); A61M 16/0066 (2013.01); A61M 16/1005 (2014.02); A61M 2202/0208 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/75 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A ventilator, wherein the ventilator comprises at least an apparatus input and an apparatus output and an airway between the apparatus input and the apparatus output, a breathing gas drive, a non-return valve and at least one switching valve being arranged in the airway, the non-return valve preventing a flow of breathing gas in a direction from the apparatus output to the apparatus input and the at least one switching valve enabling at least temporarily a flow of breathing gas in a direction from the apparatus output to the apparatus input or to a separate apparatus opening, and wherein an additional airway for an expiratory breathing gas flow leads from an expiratory apparatus input to an expiratory apparatus output and an additional switching valve and a flowmeter are arranged in the additional airway, and wherein between the expiratory apparatus input and the additional switching valve a separate expiratory airway comprising a further switching valve and a further flowmeter leads to a separate apparatus output.