US 11,744,980 B2
Exhalation valve arrangement for a ventilator apparatus with an apparatus for receiving a pressure sensor
Karolin Franke, Chur (CH); and Felix Breitruck, Buchs (CH)
Assigned to Hamilton Bonaduz AG, Bonaduz (CH)
Appl. No. 16/614,232
Filed by Hamilton Medical AG, Bonaduz (CH)
PCT Filed May 16, 2018, PCT No. PCT/EP2018/062795
§ 371(c)(1), (2) Date Nov. 15, 2019,
PCT Pub. No. WO2018/210958, PCT Pub. Date Nov. 22, 2018.
Claims priority of application No. 10 2017 208 349.2 (DE), filed on May 17, 2017.
Prior Publication US 2021/0330925 A1, Oct. 28, 2021
Int. Cl. A61M 16/20 (2006.01); A61M 16/08 (2006.01)
CPC A61M 16/206 (2014.02) [A61M 16/0858 (2014.02); A61M 16/208 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An exhalation valve arrangement for an exhalation line of a ventilation apparatus for artificial ventilation of patients, the exhalation valve arrangement being flow-capable in an exhalation flow direction and comprising:
an upstream respiratory gas conduit that extends along a first conduit path and is connected or connectable to a portion coming from the patient, of the exhalation line;
a downstream respiratory gas conduit that extends along a second conduit path and is connected or connectable to a respiratory gas sink
a valve subassembly which comprises a valve body and a valve seat and which is provided between the upstream and the downstream respiratory gas conduit in such a way that, in the context of a predetermined first respiratory gas overpressure in the upstream respiratory gas conduit relative to the downstream respiratory gas conduit, it permits an expiratory respiratory gas flow from the upstream respiratory gas conduit into the downstream respiratory gas conduit; and in the context of a predetermined second respiratory gas overpressure in the downstream respiratory gas conduit relative to the upstream respiratory gas conduit, it blocks a gas flow from the downstream respiratory gas conduit into the upstream respiratory gas conduit,
wherein the exhalation valve arrangement comprises a bypass chamber which communicates in terms of flow mechanics with the upstream respiratory gas conduit and which extends, proceeding from the upstream respiratory gas conduit, into the region of the downstream respiratory gas conduit and is embodied there for attachment of a gas pressure sensor.