	US 12,220,527 B2
	Nasal powder delivery device
Franck Poullain, La Haye Malherbe (FR); Anne-Cécile Campot, Terres de Bord (FR); Gwénollé Cabillic, Bosc Guerard Saint Adrien (FR); and Jaime Arnett, Fishers, IN (US)
Assigned to APTAR FRANCE SAS, Le Neubourg (FR)
Appl. No. 17/625,606
Filed by APTAR FRANCE SAS, Le Neubourg (FR)
PCT Filed Jul. 9, 2020, PCT No. PCT/FR2020/051232 § 371(c)(1), (2) Date Jan. 7, 2022, PCT Pub. No. WO2021/005311, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 1907756 (FR), filed on Jul. 10, 2019.
Prior Publication US 2022/0257884 A1, Aug. 18, 2022
Int. Cl. A61M 15/08 (2006.01); A61M 15/00 (2006.01)

CPC A61M 15/08 (2013.01) [A61M 15/0031 (2014.02); A61M 2202/064 (2013.01); A61M 2205/073 (2013.01)]

5 Claims

1. A nasal powder delivery device (100) comprising a container (110) containing at least one dose of powder, a nasal delivery head (120) intended to be inserted in a nostril of a user, said nasal delivery head comprising a delivery aperture (121), and an air discharge system (130) generating, upon the actuation of said nasal powder delivery device (100), a flow of compressed air to deliver a dose of powder in said nostril through said delivery aperture (121), said air discharge system comprising an air chamber (131), arranged in a skirt (125), and a piston (132) which, upon actuation of the device, sealingly slides in said air chamber (131) to compress the air contained in said air chamber (131), said piston (132) being rigidly connected to an actuating member (140), characterised in that before actuation, at least one breakable bridge (200) is provided between said skirt (125) and said actuating member (140), each breakable bridge (200) being formed on said skirt (125) and cooperating with a radial projection (210) formed on said actuating member (140), each radial projection (210) comprising an axial extension greater than that of the respective breakable bridge (200) and forming an inclined axial ramp on either side of the respective breakable bridge (200).