US 12,458,767 B2
Device for dispensing a fluid product
Matthieu Baillet, Rouen (FR); and Diego Espinoza, Oissel (FR)
Assigned to APTAR FRANCE SAS, Le Neubourg (FR)
Appl. No. 17/775,644
Filed by APTAR FRANCE SAS, Le Neubourg (FR)
PCT Filed Nov. 10, 2020, PCT No. PCT/FR2020/052054
§ 371(c)(1), (2) Date May 10, 2022,
PCT Pub. No. WO2021/094683, PCT Pub. Date May 20, 2021.
Claims priority of application No. 1912629 (FR), filed on Nov. 12, 2019.
Prior Publication US 2022/0409833 A1, Dec. 29, 2022
Int. Cl. A61M 15/08 (2006.01); A61M 11/00 (2006.01); A61M 15/00 (2006.01); B05B 11/02 (2023.01)
CPC A61M 15/08 (2013.01) [A61M 11/007 (2014.02); A61M 15/0036 (2014.02); A61M 15/0041 (2014.02); B05B 11/02 (2013.01); A61M 15/0028 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A fluid product dispenser device comprising a reservoir containing a fluid product, a dispenser head that is provided with a dispenser orifice, a stopper piston for dispensing at least a portion of said fluid product through said dispenser orifice, said reservoir being closed in sealed manner by said stopper-piston before actuation, said device including a hollow insert that is inserted and fixed in said dispenser head, said insert supporting a cannula for piercing said stopper-piston and thus connecting said reservoir to said dispenser orifice during actuation,
said dispenser head includes a proximal end portion of reduced diameter, an axial length of said proximal end portion is greater than 5 mm, a maximum outside diameter of said proximal end portion is less than 8 mm, and a wall thickness of said proximal end portion is less than 1.1 mm;
said dispenser head comprises an inner side wall comprising a first proximal cylindrical section and a second distal cylindrical section comprising a diameter greater than a diameter of said first proximal cylindrical section, said insert comprising on an outer wall of said insert a first proximal radial projection extending over an entire periphery of a circumferential section of said insert, said first proximal radial projection cooperating in a tight and sealed manner with said first proximal cylindrical section, in order to ensure a sealed fixing of said insert in said dispenser head, said insert includes, on an outer wall of said insert, a second distal radial projection, axially separated from said first proximal radial projection, said second distal radial projection co-operating with said second distal cylindrical section to ensure a guidance of said insert when said insert is inserted into said dispenser head, and a centering of said insert in an assembled position of said insert and said dispenser head, wherein said second distal radial projection has an end surface, wherein an axial dimension of the end surface is less than 1 mm.