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136. (WO2019020382) OPTICAL FIBRE
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Pub. No.: WO/2019/020382 International Application No.: PCT/EP2018/068843
Publication Date: 31.01.2019 International Filing Date: 11.07.2018
IPC:
G02B 6/02 (2006.01) ,A61B 1/07 (2006.01) ,A61B 18/22 (2006.01) ,G02B 6/032 (2006.01) ,G02F 1/365 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
02
Optical fibre with cladding
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
1
Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
06
with illuminating arrangements
07
using light-conductive means, e.g. optical fibres
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
18
Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
18
by applying electromagnetic radiation, e.g. microwaves
20
using laser
22
the beam being directed along or through a flexible conduit, e.g. an optical fibre; Hand-pieces therefor
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
02
Optical fibre with cladding
032
with non-solid core or cladding
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
35
Non-linear optics
365
in an optical waveguide structure
Applicants:
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE [FR/FR]; 3 rue Michel-Ange 75016 PARIS, FR
UNIVERSITE DE LIMOGES [FR/FR]; Hotel de l'Université 33 rue François Mitterand 87032 LIMOGES Cedex 1, FR
Inventors:
BENABID, Abdel Fetah; FR
Agent:
IPAZ; Parc Les Algorithmes Bâtiment Platon CS 70003 Saint-Aubin 91192 GIF-SUR-YVETTE Cedex, FR
Priority Data:
175699324.07.2017FR
Title (EN) OPTICAL FIBRE
(FR) FIBRE OPTIQUE
Abstract:
(EN) The present invention relates to an optical fibre (35) for an ultrafast laser endoscope comprising at least the following structures: a hollow core (33), the periphery of which has an order of symmetry of at least six when considering axes of symmetry passing through the centre of the core and through the centre of convex shapes, seen from the centre of the core, said convex shapes at least partly making up the periphery of the core; an intermediate layer of cellular structure (32) surrounding the core (33); a light-conducting peripheral structure (31) surrounding the intermediate layer of cellular structure (32); an outer sheath (30) surrounding the light-conducting peripheral structure (31). A particular advantage of the invention is that it optimizes the emission of a high-power flux associated with fluorescence collection.
(FR) La présente invention se rapporte à une fibre optique (35) pour endoscope à laser ultra-rapide comprenant au moins les structures suivantes: un cœur creux (33) dont le pourtour a un ordre de symétrie d'au moins six en considérant des axes de symétrie passant par le centre du cœur et par le centre de formes convexes, vues du centre du cœur, lesdites formes convexes composant au moins en partie le pourtour du cœur; une couche intermédiaire à structure alvéolée (32) entourant le cœur (33); une structure périphérique conductrice de lumière (31) entourant la couche intermédiaire à structure alvéolée (32); une gaine extérieure (30) entourant la structure périphérique conductrice de lumière (31). L'invention a notamment pour avantage d'optimiser l'émission d'un flux de forte puissance associé à une collecte de fluorescence.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)