公开(公告)号：EP1969323A1

公开(公告)日：2008-09-17

申请号：EP05820442.1

申请日：2005-12-28

Applicant: Bioscan Ltd.

Inventor： KHATCHATUROV, Arkady ,  VOITSECHOV, Uri ,  MATCOVITCH, Avram

IPC: G01J1/04 ,  G01J1/42 ,  G01J5/08 ,  G01J4/00 ,  G02B6/00 ,  G01N21/00 ,  G01C19/72

CPC classification number: G01J1/4228 ,  G01D5/35383 ,  G01J1/04 ,  G01J1/0425

Abstract: A method for detecting and measuring physical perturbations sensed by a multi-mode waveguide, through which a number of modes of a coherent electromagnetic wave propagates through and exit from. The method comprises irradiating the exiting electromagnetic wave on one or more two-dimensional sensing arrays comprising a plurality of sensing elements that are sensitive to the irradiated electromagnetic wave; determining, simultaneously, in a parallel manner, absolute values of sensed changes across different zones of the two-dimensional sensing arrays, each zone comprising one or more sensing elements; and summing the absolute values of different groups of different zones to obtain a representation of the perturbations.

公开(公告)号：EP1615562A2

公开(公告)日：2006-01-18

申请号：EP04713626.2

申请日：2004-02-23

Applicant: Bioscan, Ltd.

Inventor： AHARONI, Rami ,  MATCOVITCH, Avram

IPC: A61B8/00

CPC classification number: A61B8/12 ,  A61B5/02007 ,  A61B5/1076 ,  A61B8/0833 ,  A61B8/0858 ,  A61B8/4483 ,  G01H9/004 ,  G10K11/004 ,  G10K11/006 ,  G10K15/046

Abstract: A probing device (30) for insertion into a duct to determine local parameters associated with the physical structure the duct at a selected region of the duct, and in particular variations in the physical structure along a predetermined length of interest. The probing device (30) comprises: at least one of a plurality of waveguides (32) incorporated in an elongated assembly designed to be inserted into the duct; at least one of a plurality of transmitters, spaced and distributed along a predetermined length (42) of said at one of a plurality of waveguides (32) incorporated in the elongated assembly, each capable of independently transmitting an acoustic signal; a plurality of receivers, spaced and distributed along a predetermined length of said at least one of plurality of waveguides (32), each capable of receiving echoes of the acoustic signal.

公开(公告)号：EP1639397A2

公开(公告)日：2006-03-29

申请号：EP04713487.9

申请日：2004-02-22

Applicant: Bioscan Ltd.

Inventor： KHACHATUROVE, Arkady ,  VOITSECHOV, Uri ,  MATCOVITCH, Avram ,  ZASLAVSKY, Sergey

IPC: G02B26/08 ,  G02B27/28

CPC classification number: G02B6/272 ,  G02B6/2766 ,  G02B27/286

Abstract: A method for recovering an initial linear state of polarization, of an optical beam after the beam has passed through an optical fiber (11) and whose polarization state was disrupted, attaining power which is directly proportional to the power of the beam before it has passed through the optical fiber. The method comprises: splitting the beam into two beams, a first beam (21) with a first polarization state and a second beam (22) with a second polarization state, the second polarization state being orthogonal to the first polarization state; changing the polarization state of the first beam; and combining the first and second beams in half of their intensities into at least one linearly polarized beam (25). This way a linearly polarized output beam with power that is directly proportional to the power of the beam prior to it passing through the optical fiber.

公开(公告)号：EP1811901B1

公开(公告)日：2009-04-29

申请号：EP04770530.6

申请日：2004-09-19

Applicant: Bioscan, Ltd.

Inventor： MATCOVITCH, Avram ,  KHACHATUROV, Arkady ,  VOITSECHOV, Yury ,  BAR-LEV, Zvi ,  JAPHA, Yonathan ,  HASSON, Salah

IPC: A61B8/12 ,  G01S15/89 ,  G01H9/00

CPC classification number: A61B8/12 ,  A61B5/0097 ,  A61B8/4483 ,  A61M2025/0166 ,  G01S15/8968 ,  G10K15/046

Abstract: An optic fiber adapted for ultrasound imaging of the lumen of a vessel comprising: an inner core (41) for transmitting light having an index of refraction that changes responsive to acoustic energy incident thereon; a ring core (43) concentric with the inner core for transmitting light; a cladding material (42) between the inner and ring cores that has an index of refraction smaller than the index of refraction of the material from which the inner core is formed; and at least one acoustic transducer (62) comprising absorbing material (64) formed on the surface of the ring core that absorbs optical energy transmitted along the ring core and generates ultrasound responsive thereto.

公开(公告)号：EP1811901A1

公开(公告)日：2007-08-01

申请号：EP04770530.6

申请日：2004-09-19

Applicant: Bioscan, Ltd.

Inventor： MATCOVITCH, Avram ,  KHACHATUROV, Arkady ,  VOITSECHOV, Yury ,  BAR-LEV, Zvi ,  JAPHA, Yonathan ,  HASSON, Salah

IPC: A61B8/12 ,  G01S15/89 ,  G01H9/00

CPC classification number: A61B8/12 ,  A61B5/0097 ,  A61B8/4483 ,  A61M2025/0166 ,  G01S15/8968 ,  G10K15/046

Abstract: An optic fiber adapted for ultrasound imaging of the lumen of a vessel comprising: an inner core (41) for transmitting light having an index of refraction that changes responsive to acoustic energy incident thereon; a ring core (43) concentric with the inner core for transmitting light; a cladding material (42) between the inner and ring cores that has an index of refraction smaller than the index of refraction of the material from which the inner core is formed; and at least one acoustic transducer (62) comprising absorbing material (64) formed on the surface of the ring core that absorbs optical energy transmitted along the ring core and generates ultrasound responsive thereto.