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:
Feb. 02, 2016
Filed:
Nov. 04, 2014
Szymon Suckewer, Princeton, NJ (US);
Szymon Suckewer, Princeton, NJ (US);
Trustees of Princeton University, Princeton, NJ (US);
Abstract
A method for removing tattoos using two laser beams and a multi-photon process is disclosed. A 0.1 to 100 nsec pulse secondary laser beam focused to 10W/cmcreates a temporary channel from the skin surface to the tattoo pigment. A 100 fsec pulse main laser beam is then guided through the channel to the pigment and focused to sufficient intensity, i.e., 10W/cmor more, to initiate a multi-photon process that breaks up the pigment, disrupting its light reflecting properties. The channel allows the main laser beam unobstructed passage to the pigments, resulting in efficient use of the main laser. The pigment fragments escape through the temporary channel or diffuse into the blood stream. A suitably configured Ti/Sapphire laser beam is split into two components, with an uncompressed component used as the secondary laser beam, and a compressed component as the main laser beam.