The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 10, 2017
Filed:
Jan. 30, 2013
Rhenovia Pharma S.a.s., Mulhouse, FR;
Michel Faupel, Eschentzwiller, FR;
Serge Bischoff, Robion, FR;
Florian George, Strasbourg, FR;
Peter Stark, Schoenenbuch, CH;
Therascape, Strasbourg, FR;
Abstract
A transdermal device () comprising at least one substrate () arranged to be applied against the dermal surface or the mucous membrane. The at least one active ingredient is grafted to the substrate () by at least one photolabile ligand, and at least one light source () operated by a control mechanism arranged to generate light pulses, of a predetermined wavelength, intended to break covalent bonds between the active ingredient and the ligand in order to release the active ingredient from the substrate (). The substrate () comprises at least one porous matrix () with a three-dimensional structure comprising a plurality of pits () organized in a sponge-like fashion and constructed of a polymer chosen between chitin and chitosan, and the matrix () defines at least one three-dimensional tank (). The active ingredient is contained and grafted by the ligand.