US 12,127,738 B2
Tip and device for applying and spreading a liquid, gel or paste product
David Weill, Begnins (CH); Jérémy Charpilloz, Vessy (CH); and Philippe Prost-Petit-Jean, Bonlieu (FR)
Assigned to PRIMEQUAL SA, Begnins (CH)
Appl. No. 17/042,825
Filed by PRIMEQUAL SA, Begnins (CH)
PCT Filed Mar. 28, 2019, PCT No. PCT/IB2019/052560
§ 371(c)(1), (2) Date Sep. 28, 2020,
PCT Pub. No. WO2019/186465, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 1852712 (FR), filed on Mar. 29, 2018.
Prior Publication US 2021/0015473 A1, Jan. 21, 2021
Int. Cl. A61B 17/00 (2006.01); A61B 90/00 (2016.01); B05C 17/005 (2006.01)
CPC A61B 17/00491 (2013.01) [B05C 17/00513 (2013.01); B05C 17/00516 (2013.01); B05C 17/00593 (2013.01); A61B 2017/00495 (2013.01); A61B 2090/0807 (2016.02)] 12 Claims
OG exemplary drawing
 
1. An application tip for a device for applying and spreading a liquid, gel or paste type product on a given surface and for allowing a volume of product to be transformed and spread on the surface according to a predetermined calibration comprising
internally, a means for regulating the flow rate, wherein the means for regulating flow comprises a constriction with a constricted cross section;
internally, at least one first buffer volume provided between the constriction and the device, wherein the first buffer volume has a first cross section that is larger than the constricted cross section,
at least one second buffer volume provided on an end of the constriction opposite from the first buffer volume; and
means for controlled dispersion of the product provided on an end of the second buffer volume opposite from the constriction, wherein the means for controlling dispersion comprises a planar face configured to be in contact with the surface, and a recess in the planar face, said recess comprising a least one groove connected to the second buffer volume.