US 10,376,661 B2
Opening element for opening an ampoule in an aerosol generation device and aerosol generation device comprising the opening element
Thomas Gallem, Munich (DE); Uwe Hetzer, Munich (DE); Stephen Pham, San Diego, CA (US); and Reynaldo Quintana, Menlo Park, CA (US)
Assigned to PARI Pharma GmbH, Starnberg (DE)
Appl. No. 14/427,457
Filed by PARI Pharma GmbH, Starnberg (DE)
PCT Filed Sep. 9, 2013, PCT No. PCT/EP2013/068592
§ 371(c)(1), (2) Date Mar. 11, 2015,
PCT Pub. No. WO2014/040947, PCT Pub. Date Mar. 20, 2014.
Claims priority of application No. 12184036 (EP), filed on Sep. 12, 2012.
Prior Publication US 2015/0238712 A1, Aug. 27, 2015
Int. Cl. A61M 15/00 (2006.01)
CPC A61M 15/004 (2014.02) [A61M 15/009 (2013.01); A61M 15/0028 (2013.01); A61M 15/0036 (2014.02); A61M 15/0085 (2013.01); A61M 2202/0007 (2013.01); A61M 2202/0468 (2013.01); A61M 2205/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An opening element for opening an ampoule in an aerosol generation device, the opening element comprising:
a first member which has a conduit extending therethrough for guiding a fluid contained in the ampoule through the first member, and
a second member which is arranged at least partly inside or on the conduit, wherein the second member guides the fluid into the aerosol generation device by gravitational force and wherein an entire surface of the second member has a higher degree of wettability by the fluid than a surface of the first member defining the conduit, wherein the wettability of each surface by the fluid is defined by a contact angle at which a fluid interface meets the surface and wherein the entire surface of the second member has a smaller contact angle than the surface of the first member defining the conduit,
wherein the second member partitions the conduit into at least two sections, each extending in an axial direction of the conduit, wherein the axial direction of the conduit is the direction of fluid flow through the conduit, and wherein the at least two sections are arranged next to each other in a direction perpendicular to the axial direction of the conduit.