公开(公告)号：US07006231B2

公开(公告)日：2006-02-28

申请号：US10017534

申请日：2001-10-18

Applicant: Isaac Ostrovsky ,  Mark D. Modell ,  Robert J. Crowley

Inventor： Isaac Ostrovsky ,  Mark D. Modell ,  Robert J. Crowley

IPC: G01B9/02

CPC classification number: G01B9/02007 ,  G01B9/02002 ,  G01B9/02029 ,  G01B9/02032 ,  G01B9/02044 ,  G01B9/02091 ,  G01B2290/45 ,  G01B2290/70 ,  G01N21/4795

Abstract: Diffraction grating based fiber optic interferometric systems for use in optical coherence tomography, wherein sample and reference light beams are formed by a first beam splitter and the sample light beam received from a sample and a reference light beam are combined on a second beam splitter. In one embodiment, the first beam splitter is an approximately 50/50 beam splitter, and the second beam splitter is a non 50/50 beam splitter. More than half of the energy of the sample light beam is directed into the combined beam and less than half of the energy of the reference light beam are directed into the combined beam by the second beam splitter. In another embodiment, the first beam splitter is a non 50/50 beam splitter and the second beam splitter is an approximately 50/50 beam splitter. An optical circulator is provided to enable the sample light beam to bypass the first beam splitter after interaction with a sample. Two combined beams are formed by the second beam splitter for detection by two respective detectors. More than half of the energy of the light source provided to the first beam splitter is directed into the sample light beam and less than half of the energy is directed into the reference light beam. The energy distribution between the sample and reference light beams can be controlled by selection of the characteristics of the beam splitters.

公开(公告)号：US06847454B2

公开(公告)日：2005-01-25

申请号：US10020040

申请日：2001-10-18

Applicant: Robert J. Crowley ,  Louis J. Barbato ,  Isaac Ostrovsky ,  Mark D. Modell

Inventor： Robert J. Crowley ,  Louis J. Barbato ,  Isaac Ostrovsky ,  Mark D. Modell

IPC: G01N21/17 ,  A61B5/00 ,  A61B8/00 ,  A61B8/12 ,  G01B9/02 ,  G01N29/06 ,  G01N29/22

CPC classification number: A61B5/6852 ,  A61B5/0066 ,  A61B5/0095 ,  A61B5/02007 ,  A61B8/12 ,  G01B9/02002 ,  G01B9/02007 ,  G01B9/02028 ,  G01B9/0203 ,  G01B9/02087 ,  G01B9/02091 ,  G01B2290/45 ,  G01B2290/70 ,  G01N29/06 ,  G01N29/223 ,  G01N2291/02416 ,  G01N2291/02466

Abstract: An imaging system comprises an interferometer and an ultrasound console that processes signals from the interferometer into an image for display. The interferometer may include one or more multi-element photo detectors with a plurality of parallel outputs. A parallel to serial converter is provided between the parallel output of the interferometer and the input of the ultrasound console, to convert the signals provided on the parallel outputs into a serial signal for analysis by the ultrasound console. The interferometer may be selectively coupled to the ultrasound console and the system may further comprise an ultrasound device that may also be selectively coupled to the console, offering a user the option of using either the interferometer or the ultrasound device. The ultrasound console may also include two inputs, one for the interferometer and the other for the ultrasound device. The interferometer and the ultrasound device may both be carried by catheters for insertion into internal body cavities, such as blood vessels. Imaging methods are also disclosed.

Abstract translation: 成像系统包括干涉仪和超声控制台，其将来自干涉仪的信号处理成用于显示的图像。 干涉仪可以包括具有多个并行输出的一个或多个多元素光电检测器。 在干涉仪的并行输出和超声控制台的输入之间提供并行到串行转换器，以将并行输出上提供的信号转换为串行信号，以便由超声控制台进行分析。 所述干涉仪可选择性地耦合到所述超声控制台，并且所述系统还可包括超声装置，所述超声装置还可以选择性地耦合到所述控制台，为使用者提供使用所述干涉仪或所述超声装置的选项。 超声控制台还可以包括两个输入，一个用于干涉仪，另一个用于超声装置。 干涉仪和超声波装置都可以由导管承载以插入诸如血管的内部体腔中。 还公开了成像方法。