US 11,717,622 B2
Blocking device
Frank Bartels, Hattingen (DE); and Jürgen Rawert, Cologne (DE)
Assigned to SOFTHALE NV, Diepenbeek (BE)
Appl. No. 16/955,794
Filed by Softhale NV, Diepenbeek (BE)
PCT Filed Dec. 22, 2018, PCT No. PCT/EP2018/086834
§ 371(c)(1), (2) Date Jun. 19, 2020,
PCT Pub. No. WO2019/122451, PCT Pub. Date Jun. 27, 2019.
Claims priority of provisional application 62/610,058, filed on Dec. 22, 2017.
Claims priority of application No. 17210392 (EP), filed on Dec. 22, 2017.
Prior Publication US 2020/0316323 A1, Oct. 8, 2020
Int. Cl. A61M 15/00 (2006.01)
CPC A61M 15/0081 (2014.02) [A61M 15/009 (2013.01); A61M 2202/04 (2013.01); A61M 2205/276 (2013.01); A61M 2205/8281 (2013.01)] 12 Claims
OG exemplary drawing
 
1. Inhalation device for medically active liquids for generation of an aerosol, comprising
a housing, inside this housing a reservoir for storing a liquid, a pumping device with a pumping chamber for generation of a pressure inside said pumping chamber, wherein the pumping chamber is fluidically connected with the reservoir, a riser pipe which can be received with at least one reservoir-facing interior end in said pumping chamber, and a nozzle which is connected liquid-tight to an exterior end of the riser pipe, wherein the interior volume of the pumping chamber is changeable by means of linear relative motion of the pumping chamber to the riser pipe,
and wherein said linear relative motion can be effected by a relative rotation of a rotatable part which is part of, or connected to, the housing with respect to a second part of said housing, such that said relative rotation is converted into said linear relative motion by means of a gear mechanism,
and wherein a means for the storage of potential energy is provided which is chargeable by means of said relative rotation, and wherein said energy is releasable to said pumping device when released by activation of a release means,
a blocking device which is adapted to block rotation of the rotatable part;
wherein
the blocking device is adapted to be moveable between a blocking position and a non-blocking position, and wherein the blocking device is adapted to
(a) move into the blocking position upon rotating the rotatable part by a predefined rotation angle, and
(b) move into the non-blocking position upon activating the release means;
wherein the rotatable part has an axial recess configured to receive at least a part of the blocking device such that, when said blocking device is at least partially received in said recess, rotation of the rotatable part is blocked or nearly blocked, whereas when the blocking device is outside of said recess, the rotatable part is unblocked.