US 12,350,419 B2
Portable device for administering a physiologically active liquid
Rüdiger Rentsch, Berlin (DE); and Mathias Etzold, Berlin (DE)
Assigned to WERRTA GmbH Düsen- und Zerstäubungstechnik, Berlin (DE)
Appl. No. 17/430,265
Filed by WERRTA GmbH Düsen- und Zerstäubungstechnik, Berlin (DE)
PCT Filed Feb. 13, 2020, PCT No. PCT/EP2020/053782
§ 371(c)(1), (2) Date Aug. 11, 2021,
PCT Pub. No. WO2020/165356, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. 20 2019 000 718.0 (DE), filed on Feb. 14, 2019; and application No. 20 2019 004 067.6 (DE), filed on Oct. 2, 2019.
Prior Publication US 2022/0160052 A1, May 26, 2022
Int. Cl. A61M 11/00 (2006.01); A24F 42/20 (2020.01); A24F 42/60 (2020.01); A61F 9/00 (2006.01); A61M 15/00 (2006.01); A61M 15/08 (2006.01); B05B 1/14 (2006.01); B05B 1/26 (2006.01); B05B 1/28 (2006.01); B05B 7/00 (2006.01); B05B 11/10 (2023.01); B05B 14/00 (2018.01); B65D 83/14 (2025.01); B65D 83/62 (2006.01); B65D 83/64 (2006.01)
CPC A61M 11/006 (2014.02) [A24F 42/20 (2020.01); A24F 42/60 (2020.01); A61M 11/00 (2013.01); A61M 11/007 (2014.02); A61M 11/008 (2014.02); A61M 15/0001 (2014.02); A61M 15/0015 (2014.02); A61M 15/08 (2013.01); B05B 1/14 (2013.01); B05B 1/262 (2013.01); B05B 1/28 (2013.01); B05B 7/0012 (2013.01); B65D 83/753 (2013.01); B65D 83/754 (2013.01); A61F 9/0008 (2013.01); A61M 11/003 (2014.02); A61M 2205/8281 (2013.01); A61M 2207/00 (2013.01); B05B 11/1052 (2023.01); B05B 14/00 (2018.02); B65D 83/62 (2013.01); B65D 83/64 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A portable device for administering a physiologically active liquid, comprising:
a container for holding the liquid;
pressurizing means for applying pressure to the liquid;
an atomizer for atomizing the liquid; and
an applicator for administering atomized liquid,
wherein the atomizer comprises:
at least one Rayleigh nozzle through which the liquid is ejected from the container, and
an impact element, wherein the atomizer is configured such that, in a pressure range generated with the pressurizing means, a liquid jet emerging from the at least one Rayleigh nozzle breaks up, under a free break up regime, into almost monodisperse droplets prior to striking the impact element, the impact element on a nozzle outlet side for impact atomization to atomize the droplets from the liquid jet, the impact element being functionally combined with the at least one Rayleigh nozzle.