IP Library › Granted Patent US 12702995
Granted Patent B2
US 12702995 · App. 18/725,487 · Granted Aug 11, 2026

Method and device for analyzing a device for spraying a pharmaceutical fluid product

Inventor: Guillaume Granjon (La Vacherie, FR)
Assignee: APTAR FRANCE SAS
B05B12/082
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Quick Facts
Patent No.
US 12702995
App. No.
18/725,487
Granted
Aug 11, 2026
Kind
B2
Abstract

A method for analysing a device for spraying a pharmaceutical fluid product, including providing a spray head for a device for spraying a pharmaceutical fluid product, the spray head having a spray orifice; providing a receiving surface having discrete contact zones separated by voids, the contact zones electrically conductive; passing a flow of ionised gas through the spray orifice, the flow of ionised gas being charged with electrons; sending the flow of ionised gas onto the receiving surface; visualising the impact zone for the flow of ionised gas on the receiving surface, and analysing the visualisation of the impact zone in order to determine whether the impact zone complies with predetermined specifications.

Claims (18)

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 electrically conductive,

passing a flow of ionised gas through said spray orifice of said spray head, said flow of ionised gas being charged with electrons,

sending said flow of ionised gas onto said receiving surface,

visualising an impact zone for said flow of ionised gas on said receiving surface, and

determining from said visualizing of said impact zone whether or not said impact zone complies with predetermined specifications; and

wherein an operating cycle comprises the following steps:

connecting said receiving surface to ground in order to eliminate any electrical charges,

generating said flow of ionised gas and sending it through said spray head onto said receiving surface,

detecting each contact zone which becomes charged with negative ions in contact with said flow of ionised gas, and

visualising said impact zone with processing means.

2 . The method as claimed in claim 1 , in which said flow of ionised gas is a flow of compressed air.

3 . The method as claimed in claim 1 , in which said flow of ionised gas is a flow of ionised pulsed air.

4 . The method as claimed in claim 1 , in which said determining comprises determining a geometry, in particular a symmetry, of the impact zone for said flow of ionized gas on said receiving surface.

5 . The method as claimed in claim 1 , in which said predetermined specifications comprise a predetermined planar extent of the impact zone for said flow of ionized gas on said receiving surface, in a manner such that the spray head for which a planar extent is similar to said predetermined planar extent are classified as compliant, and the spray head for which a planar extent is different from said predetermined planar extent are classified as non-compliant.

6 . The method as claimed in claim 1 , wherein said processing means creates a matrix of the impact zone for visualization.

7 . The method as claimed in claim 1 , wherein said flow of ionised gas is a flow of compressed air.