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1. (WO2001033165) OPTICAL FIBER NAVIGATION SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/033165 International Application No.: PCT/US2000/029588
Publication Date: 10.05.2001 International Filing Date: 27.10.2000
Chapter 2 Demand Filed: 26.03.2001
IPC:
A61B 5/107 (2006.01) ,G01D 5/353 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
103
Measuring devices for testing the shape, pattern, size or movement of the body or parts thereof, for diagnostic purposes
107
Measuring physical dimensions, e.g. size of the entire body or parts thereof
G PHYSICS
01
MEASURING; TESTING
D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5
Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
26
using optical means, i.e. using infra-red, visible or ultra-violet light
32
with attenuation or whole or partial obturation of beams of light
34
the beams of light being detected by photocells
353
influencing the transmission properties of an optical fibre
Applicants: BUCHOLTZ, Frank[US/US]; US (UsOnly)
ADVANCED SENSOR TECHNOLOGY, LLC[US/US]; 1620 English Place Crofton, MD 21114, US (AllExceptUS)
Inventors: BUCHOLTZ, Frank; US
Agent: BOMMARITO, Alexander, D. ; Oldham & Oldham Co., L.P.A. Twin Oaks Estate 1225 West Market Street Akron, OH 44313-7188, US
Priority Data:
60/162,52929.10.1999US
Title (EN) OPTICAL FIBER NAVIGATION SYSTEM
(FR) SYSTEME DE NAVIGATION A FIBRES OPTIQUES
Abstract:
(EN) The present invention is a system and method for determining the shape, positioning and orientation of a passageway (18), such as the lumen of a catheter within an human or animal body. An array of optical fibers (20, 21, 22) are placed within a passageway (18), and as the fiber flexes or bends within the passageway (18), a property of light travelling in the fiber is modified. Light is passed through the fiber (20, 21, 22) and variations in a physical property of this light are measured (32) to determine the flex or bend of the fiber. Preferably, an array of three or more optical fibers (20, 21, 22) are affixed together and changes in wavelength of the light passed through these fibers allows for determination of the amount of strain within these optical fibers and in turn, the shape of the fiber array. Utilizing three or more optical fibers allows for determining the shape of the array in three dimensions. Additional methods are disclosed for determining the position and orientation of the optical fiber array, within the selected passageway (18).
(FR) Cette invention a trait à un système ainsi qu'à la méthode correspondante permettant de déterminer la forme, le positionnement et l'orientation d'un passage (18), notamment de la lumière d'un cathéter, dans le corps d'un animal ou d'un humain. Dans le passage (18) est introduit un réseau de fibres optiques (20, 21, 22) et, lorsque ces fibre ploient ou se courbent, survient une modification d'une caractéristique de la lumière transitant par ces fibres (24, 26, 28, 30). De la lumière transite par ces fibres (20, 21, 22) et les changements des caractéristiques physiques de cette lumière sont mesurées (32) afin de déterminer le fléchissement ou la courbure des fibres. Trois fibres optiques (20, 21, 22) ou davantage sont, de préférence, constituées en un réseau et les modifications de longueur d'onde de la lumière les traversant permettent de déterminer la tension mécanique existant dans ces fibres et, de ce fait, la forme du réseau de fibres. L'utilisation de trois fibres optiques, ou davantage, permet de déterminer la forme du réseau en trois dimensions. L'invention porte également sur d'autres méthodes permettant de déterminer la position et l'orientation du réseau de fibres optiques dans le passage sélectionné (18).
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)