Permanent, removable tissue markings

Details Permanent, removable tissue markings Permanent, removable tissue markings

A - Human Necessities

61

K

A61K 8/02 (2006.01) A61Q 19/04 (2006.01) C09D 11/00 (2006.01) A61K 8/19 (2006.01) A61K 8/30 (2006.01)

Patent

CA 2356705

The present invention provides microparticles that create permanent tissue markings, such as tattoos, designed in advance for change and/or removal on demand, as well as methods for implanting the microparticles in tissue and changing and/or removing the resulting markings. Colored microparticles are constructed with specific electromagnetic absorption and/or structural properties that facilitate changing and/or removing tissue markings made using the microparticles by applying specific energy (such as electromagnetic radiation from a laser or flash-lamp) to the tissue marking site.

L'invention concerne des microparticules permettant de réaliser des marquages permanents sur le tissu corporel (par exemple, tatouages), ces microparticules étant conçues pour le changement/l'effacement à la demande. L'invention concerne également des procédés relatifs à l'implantation des microparticules dans le tissu et au changement/à l'effacement des marquages réalisés. Les microparticules colorées sont dotées de propriétés spécifiques d'absorption électromagnétique et/ou structurelles qui facilitent le changement et/ou l'effacement des marquages sur le tissu: ainsi, on applique au tissu sur lequel les marquages ont été réalisés au moyen des microparticules une énergie spécifique (du type rayonnement électromagnétique par laser ou lampe à éclair)

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