Abstract: A cartridge for dispensing a material, having: a sleeve having a longitudinal axis and a distal wall with a dispensing hole; a barrel defining a chamber for the material, including a proximal open end and a breakable distal wall at its distal end, and being movable in the sleeve between a first position where its distal wall is a distance from the sleeve's distal wall and a second position where its distal wall's sealing portion contacts an inner surface of the sleeve's distal wall; and a piston having a plate movable to seal the barrel's chamber. The sleeve includes an internal piercing element, near the dispensing hole, for breaking the barrel's distal wall upon moving the barrel from the first to the second position. Around the piercing element is an annular cavity delimited peripherally by a beveled inner surface that complements a beveled outer surface of the barrel.

Abstract: The present invention provides a system for dermal or transdermal application containing a matrix based on an aqueous-alcoholic gel which contains at least one iota-type carrageenan having a molecular weight of between 300,000 D and 800,000 D, said carrageenan having a calcium sulfate content such that the viscosity at 20° C. of an aqueous solution containing 1% by weight of this iota-carrageenan is about 120 cps (0.12 Pa.s) and that of an aqueous solution containing 2% by weight is about 1000 cps (1 Pa.s), and such that an aqueous solution of this carrageenan has a thixotropic gel structure.

Abstract: The present invention relates to a device for the diffusion of a volatile product into the atmosphere which is intended in particular to be applied to the skin and which comprises a matrix intended to diffuse the volatile product, said matrix being based on an ethylene/vinyl acetate (EVA) copolymer, wherein said copolymer represents a melt index of between 0.5 and 20 g/10 min, measured according to Standard ASTM D 1238, and a melting point of between 65 and 90° C.