US 12,447,484 B2
Method and device for analysing a device for spraying a pharmaceutical fluid product
Vincent Loisel, Bonsecours (FR)
Assigned to APTAR FRANCE SAS, Le Neubourg (FR)
Appl. No. 18/011,302
Filed by APTAR FRANCE SAS, Le Neubourg (FR)
PCT Filed Jul. 1, 2021, PCT No. PCT/FR2021/051204
§ 371(c)(1), (2) Date Dec. 19, 2022,
PCT Pub. No. WO2022/003294, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 2006943 (FR), filed on Jul. 1, 2020.
Prior Publication US 2023/0191431 A1, Jun. 22, 2023
Int. Cl. B05B 7/08 (2006.01); A61M 15/08 (2006.01); G01K 11/12 (2021.01)
CPC B05B 7/0815 (2013.01) [A61M 15/08 (2013.01); G01K 11/12 (2013.01); A61M 2205/0227 (2013.01); A61M 2205/3368 (2013.01); A61M 2209/02 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for analysing a device for spraying a pharmaceutical fluid product, characterized in that it comprises the following steps:
providing a spray head for a device for spraying a pharmaceutical fluid product, said spray head comprising a spray orifice,
providing a receiving surface comprising a plurality of discrete contact zones separated by voids, said contact zones being coated with a heat sensitive material,
bringing said receiving surface to a temperature T2,
passing a flow of compressed gas through said spray orifice of said spray head, said flow of compressed gas being at a temperature T1 which differs from T2,
sending said flow of compressed gas at temperature T1 onto said receiving surface at temperature T2,
visualising the impact zone for said flow of compressed gas on said receiving surface, and
analysing said visualisation of said impact zone in order to determine whether or not said impact zone complies with predetermined specifications.