US 12,434,022 B2
Inhalation device and method
Frank Bartels, Hattigen (DE); and Jürgen Rawert, Cologne (DE)
Assigned to INVOX BELGIUM NV, Diepenbeek (BE)
Filed by INVOX BELGIUM NV, Diepenbeek (BE)
Filed on Feb. 27, 2023, as Appl. No. 18/175,301.
Application 18/175,301 is a continuation of application No. 16/609,182, granted, now 11,612,704, previously published as PCT/EP2018/061056, filed on Apr. 30, 2018.
Claims priority of provisional application 62/491,965, filed on Apr. 28, 2017.
Claims priority of application No. 17168869 (EP), filed on Apr. 28, 2017.
Prior Publication US 2023/0277784 A1, Sep. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 15/00 (2006.01); A61M 11/00 (2006.01)
CPC A61M 15/0086 (2013.01) [A61M 11/007 (2014.02); A61M 15/0065 (2013.01); A61M 15/009 (2013.01); A61M 2202/0468 (2013.01); A61M 2205/3337 (2013.01); A61M 2205/3351 (2013.01); A61M 2205/3355 (2013.01); A61M 2205/8281 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An inhalation device for delivering a nebulized medically active aerosol for inhalation therapy, the inhalation device comprising:
a housing configured to receive a fluid reservoir therein;
an impingement-type nozzle fixed to the housing; and
a pumping unit located in the housing, the pumping unit comprising:
a riser pipe that is immovably fixed to the housing and in fluid communication with the impingement-type nozzle; and
a hollow cylinder with the riser pipe at least partially inserted into an interior of the hollow cylinder, the hollow cylinder longitudinally translatable along an outer circumference of the riser pipe and configured to be in fluid communication with the fluid reservoir,
an internal space of the riser pipe and hollow cylinder defining a variable volume of the pumping unit, the variable volume of the pumping unit variably based on a longitudinally translational position of the hollow cylinder along the outer circumference of the riser pipe; and
a spring mechanically coupled to the hollow cylinder, the spring configured to vary the variable volume of the pumping unit by changing the longitudinally translational position of the hollow cylinder along the outer circumference of the riser pipe.