公开(公告)号：US11224336B2

公开(公告)日：2022-01-18

申请号：US16184832

申请日：2018-11-08

Applicant: CANON U.S.A., INC.

Inventor： Alexander Altshuler ,  Badr Elmaanaoui ,  Seiji Takeuchi

IPC: A61B1/07 ,  G02B6/42 ,  H04N5/225 ,  A61B5/00 ,  A61B1/00 ,  A61B1/06 ,  A61B8/12 ,  A61B1/04 ,  A61B3/12 ,  A61B8/00

Abstract: One or more devices, systems, methods and storage mediums for characterizing, examining and/or diagnosing, and/or measuring viscosity of, a sample or object are provided herein. Such information may be obtained in application(s) using a system that includes a rotary junction, an elongated extender or at least one repeater attached to the rotary junction and a rotatable probe attached to the elongated extender and/or the at least one repeater. Examples of such applications include imaging, evaluating and diagnosing biological objects, such as, but not limited to, for Gastro-intestinal, cardio and/or ophthalmic applications, and being obtained via one or more optical instruments. The extenders and/or repeaters may be used with one or more forms of imaging, such as, but not limited to, Spectrally Encoded Endoscopy (“SEE”) and Optical Coherence Tomography (“OCT”).

公开(公告)号：US10682044B2

公开(公告)日：2020-06-16

申请号：US16476826

申请日：2018-01-10

Applicant: Canon U.S.A., Inc.

Inventor： Tzu-Yu Wu ,  Mitsuhiro Ikuta ,  Seiji Takeuchi ,  Naoki Kohara ,  Osamu Koyama

IPC: A61B1/00 ,  A61B1/07 ,  G01J3/02 ,  G01J3/18 ,  G02B5/18 ,  G02B3/00

Abstract: A Spectrally Encoded Forward View or Multi-View Endoscope, Probe, and Imaging Apparatus and system, and methods and storage mediums for use therewith, are provided herein. At least one apparatus or system may comprise a first waveguide; an optical system; and a diffraction grating. The first waveguide may be for guiding light from a light source to an output port of the first waveguide. The optical system may comprise at least a first reflecting surface and a second reflecting surface. The first reflecting surface may be arranged to reflect light from the output port of the first waveguide to the second reflecting surface. The second reflecting surface may be arranged to reflect light from the first reflecting surface back through the first reflecting surface to the diffraction grating. The diffraction grating may diffract light from the second reflecting surface in several lights/colors of non-zero diffraction orders in a first direction.

公开(公告)号：US10530976B2

公开(公告)日：2020-01-07

申请号：US16216847

申请日：2018-12-11

Applicant: CANON U.S.A., INC.

Inventor： Seiji Takeuchi ,  Jacob Schieffelin Brauer ,  Anderson Mach ,  Badr Elmaanaoui ,  Sarika Verma ,  Kenji Yamazoe ,  Toshiyuki Sudo ,  Michio Ishikawa

IPC: G02B23/26 ,  H04N5/225 ,  G02B27/42 ,  G02B23/24 ,  A61B1/00 ,  A61B5/00

Abstract: The present disclosure provides apparatuses and methods for color imaging and an increased field of view using spectrally encoded endoscopy techniques. At least one of the apparatuses includes an illumination unit having two or more spectrally dispersive gratings positioned, for example, on different planes or on the same plane but having grating vectors at an angle to each other such that bands of spectrally dispersed light propagating from the gratings propagate on different planes.

公开(公告)号：US10444146B2

公开(公告)日：2019-10-15

申请号：US16062397

申请日：2016-12-28

Applicant: CANON U.S.A., INC.

Inventor： Kenji Yamazoe ,  Seiji Takeuchi

IPC: A61B1/00 ,  G01N21/47 ,  A61B5/00 ,  G01N21/27 ,  G01N33/483 ,  A61B1/04 ,  A61B1/055 ,  A61B1/06 ,  A61B1/07

Abstract: The present invention relates generally to apparatus and methods for endoscopy which includes a probe, a first and a second optical fiber to guide light, a third optical fiber to capture light; and a switch configured to operate the first optical fiber and second optical fiber. Light dispersed by the first optical fiber at least partially overlaps light dispersed by the second optical.

公开(公告)号：US20190223706A1

公开(公告)日：2019-07-25

申请号：US16248607

申请日：2019-01-15

Applicant: CANON U.S.A., INC.

Inventor： Seiji Takeuchi ,  Mitsuhiro Ikuta ,  Anderson Thi Mach

IPC: A61B1/05 ,  A61B1/06 ,  A61B1/07 ,  A61B1/00 ,  G02B6/10

Abstract: An endoscopic probe extending from a proximal end to a distal end thereof, and configured to be inserted in a tubular lumen to observe a sample is disclosed. The probe includes a first waveguide enclosed within an inner sheath and extending from the proximal end to the distal end along an axis of the inner sheath; and a plurality of second waveguides having at least the distal ends thereof arranged in one or more rings around the inner sheath to surround the distal end of the first waveguide. At the distal end, the axis of each of the second waveguides is tilted with respect to the axis of the first waveguide by a tilt angle which can be adjustable. This novel endoscopic probe has a resultant numerical aperture larger than the numerical aperture of each of the second waveguides, and it may be applicable to forward-viewing spectrally encoded endoscopes (SEE).

公开(公告)号：US10194065B2

公开(公告)日：2019-01-29

申请号：US15229768

申请日：2016-08-05

Applicant: Canon U.S.A. Inc.

Inventor： Seiji Takeuchi ,  Jacob Schieffelin Brauer ,  Anderson T. Mach ,  Badr Elmaanaoui ,  Sarika Verma ,  Kenji Yamazoe ,  Toshiyuki Sudo ,  Michio Ishikawa

IPC: G02B23/26 ,  H04N5/225 ,  G02B27/42 ,  G02B23/24 ,  A61B1/00 ,  A61B5/00

Abstract: The present disclosure provides apparatuses and methods for color imaging and an increased field of view using spectrally encoded endoscopy techniques. At least one of the apparatuses includes an illumination unit having two or more spectrally dispersive gratings positioned, for example, on different planes or on the same plane but having grating vectors at an angle to each other such that bands of spectrally dispersed light propagating from the gratings propagate on different planes.

公开(公告)号：US20180017806A1

公开(公告)日：2018-01-18

申请号：US15649310

申请日：2017-07-13

Applicant: Canon U.S.A., Inc.

Inventor： Zhuo Wang ,  Seiji Takeuchi

IPC: G02B27/42 ,  G02B23/24 ,  G02B5/18 ,  G01J3/18 ,  G01J3/02 ,  G02B23/26 ,  G01B9/02

CPC classification number: G02B27/425 ,  A61B1/00096 ,  A61B5/0062 ,  A61B5/0084 ,  G01B9/02044 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/18 ,  G02B5/1866 ,  G02B6/262 ,  G02B6/29311 ,  G02B6/32 ,  G02B23/2469 ,  G02B23/26

Abstract: A novel endoscope, which can be a spectrally encoded endoscope (SEE) probe having forward-view, side-view, or a combination of forward and side views is provided herein. The SEE probe includes a light guiding component, a light focusing component, and a grating component. The probe is configured to forward a light such as a spectrally dispersed light from the grating component to a sample with no intermediate reflections between light guiding component and the grating component. A triangular grating, such as a staircase grating or an overhang grating may be used as the grating component.