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:
Nov. 09, 1999
Filed:
Jun. 06, 1997
Bahman Anvari, Irvine, CA (US);
Samuel B Tanenbaum, Irvine, CA (US);
Thomas E Milner, Irvine, CA (US);
J Stuart Nelson, Laguna Niguel, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
Successful laser treatment of hemangiomas requires selective photocoagulation of subsurface targeted blood vessels without thermal damage to the overlying epidermis. An apparatus for in vivo exposure of laser radiation from a continuous Nd:YAG laser at 1064 nm delivers repetitive cryogen spurts, each having a duration of the order of milliseconds during continuous laser irradiation. Control of the cryogen spray cooling is achieved through monitoring of the radiometric surface temperature of the tissue site and either controlling the repetition rate of the cryogen spurts according to temperature or according to a threshold temperature of the irradiated surface and/or repetition rate of the cryogen spurts according to power density and the duration of continuous irradiation.