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1. WO2010138927 - OPTICAL COHERENCE TOMOGRAPHY FOR BIOLOGICAL IMAGING

Publication Number WO/2010/138927
Publication Date 02.12.2010
International Application No. PCT/US2010/036743
International Filing Date 28.05.2010
IPC
G01N 21/17 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
G01B 9/02 2006.01
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9Instruments as specified in the subgroups and characterised by the use of optical measuring means
02Interferometers
CPC
A61B 5/0066
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
0059using light, e.g. diagnosis by transillumination, diascopy, fluorescence
0062Arrangements for scanning
0066Optical coherence imaging
A61B 5/6852
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
6846specially adapted to be brought in contact with an internal body part, i.e. invasive
6847mounted on an invasive device
6852Catheters
Applicants
  • AVINGER, INC. [US]/[US] (AllExceptUS)
  • BLACK, John, F. [US]/[US] (UsOnly)
  • SPENCER, Maegan, K. [US]/[US] (UsOnly)
  • ZUNG, Michael [US]/[US] (UsOnly)
  • MCNALL, Charles [US]/[US] (UsOnly)
  • LUMABAS, Evangeline [US]/[US] (UsOnly)
  • ROSENTHAL, Michael, H. [US]/[US] (UsOnly)
  • SIMPSON, John, B. [US]/[US] (UsOnly)
Inventors
  • BLACK, John, F.
  • SPENCER, Maegan, K.
  • ZUNG, Michael
  • MCNALL, Charles
  • LUMABAS, Evangeline
  • ROSENTHAL, Michael, H.
  • SIMPSON, John, B.
Agents
  • SHOOP, Richard, D.
Priority Data
61/182,06128.05.2009US
61/222,23801.07.2009US
61/258,06404.11.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) OPTICAL COHERENCE TOMOGRAPHY FOR BIOLOGICAL IMAGING
(FR) TOMOGRAPHIE PAR COHÉRENCE OPTIQUE (OCT) POUR IMAGERIE BIOLOGIQUE
Abstract
(EN)
Described herein are catheters for use with Optical Coherence Tomography (OCT) that include an optical fiber core having a first refractive index and an interface medium having a second refractive index, where the first and second refractive indexes are mismatched such that receiving electronics configured to receive optical radiation reflected from the reference interface and the target operate in a total noise range that is within 5 dB of the shot noise limit. These OCT catheters may include a silicon die mirror having a reflective coating that is embedded in the interface medium. The optical fiber can be fixed at just the distal end of the catheter, and may be managed within a handle that is attached to the proximal end of the catheter body, and is configured to allow rotation of the both catheter body and the optical fiber relative to the handle.
(FR)
La présente invention concerne des cathéters pour tomographie par cohérence optique (OCT), comprenant un cœur de fibre optique présentant un premier indice de réfraction, et un milieu interface présentant un second indice de réfraction. Les premier et second indices de réfraction ne sont pas identiques, de telle sorte que l'élément électronique de réception configuré pour recevoir le rayonnement optique réfléchi par l'interface de référence et la cible fonctionne dans un domaine de bruit total situé dans les 5 dB de la limite du bruit de grenaille. Ces cathéters OCT peuvent comprendre un miroir sur puce de silicium comportant un revêtement réfléchissant incorporé dans le milieu interface. La fibre optique peut être fixée juste à l'extrémité distale du cathéter, et peut être disposée dans une poignée attachée à l'extrémité proximale du corps de cathéter, et est configurée pour permettre la rotation à la fois du corps de cathéter et de la fibre optique par rapport à la poignée.
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