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1. (WO2001011331) AGENCEMENT DE SURVEILLANCE DE PUISSANCE DESTINE A UN DETECTEUR DE FIBRE CASSEE
Dernières données bibliographiques dont dispose le Bureau international   

N° de publication :    WO/2001/011331    N° de la demande internationale :    PCT/US2000/020997
Date de publication : 15.02.2001 Date de dépôt international : 02.08.2000
Demande présentée en vertu du Chapitre 2 :    26.02.2001    
CIB :
A61B 17/00 (2006.01), A61B 18/20 (2006.01), A61B 18/22 (2006.01), G01M 11/00 (2006.01)
Déposants : COHERENT, INC. [US/US]; 5100 Patrick Henry Drive, Santa Clara, CA 95054 (US)
Inventeurs : MANOUKIAN, Nubar, S.; (US).
REED, Edward, A.; (US)
Mandataire : STALLMAN, Michael, A.; Stallman & Pollock L.L.P., 121 Spear Street, Suite 290, San Francisco, CA 94105 (US)
Données relatives à la priorité :
60/147,562 06.08.1999 US
09/602,442 23.06.2000 US
Titre (EN) POWER MONITORING ARRANGEMENT FOR BROKEN FIBER DETECTOR
(FR) AGENCEMENT DE SURVEILLANCE DE PUISSANCE DESTINE A UN DETECTEUR DE FIBRE CASSEE
Abrégé : front page image
A method for monitoring power of laser-light delivered by an optical fiber from a laser to an optical system is disclosed. The optical fiber has a delivery-end from which the laser-light is delivered and the optical system has a lens axially spaced apart from the optical fiber. A detector is positioned facing the space between the delivery-end of the optical fiber and the lens such that it can not directly receive laser-light reflected or scattered by the lens but indirectly receives a portion of laser-light via multiple reflections from the lens the delivery end of the optical fiber or a housing in which the lens and the delivery end of the optical fiber are located. The received light provides a signal representative of the power of laser-light delivered by the optical fiber. This signal can be electronically compared with a reference level either predetermined or monitored at an input end of the fiber. A change in the comparison can be interpreted as an indication of a break in the optical fiber. The detector arrangement is small enough that it can be easily incorporated in a surgical laser handpiece.
États désignés : JP.
Office européen des brevets (OEB) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Langue de publication : anglais (EN)
Langue de dépôt : anglais (EN)