US 12,465,736 B2
Device comprising microneedles for in-situ reaction of a skin
Veronique Burnier, Chevilly-la-Rue (FR); and Dominique Bordeaux, Chevilly-la-Rue (FR)
Assigned to L'OREAL, Paris (FR)
Appl. No. 17/269,120
Filed by L'OREAL, Paris (FR)
PCT Filed Sep. 24, 2018, PCT No. PCT/EP2018/075796
§ 371(c)(1), (2) Date Feb. 17, 2021,
PCT Pub. No. WO2020/064083, PCT Pub. Date Apr. 2, 2020.
Prior Publication US 2021/0322744 A1, Oct. 21, 2021
Int. Cl. A61M 37/00 (2006.01)
CPC A61M 37/0015 (2013.01) [A61M 2037/0023 (2013.01); A61M 2037/003 (2013.01); A61M 2037/0046 (2013.01); A61M 2037/0061 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A device comprising a base carrying a plurality of microneedles, wherein the device includes at least one composition that generates an in-situ reaction into the skin, scalp, or lips in order to correct, supply volume, soften and/or erase skin aging signs disorders, wherein:
the in-situ reaction transforms the at least one composition by increasing viscosity of the least one composition by binding, cross-linking, reticulation, gelification, precipitation, aggregation, association, bounding, or mixing at a time between preparation of the at least one composition and up to post-injection into the skin, scalp, or lips.