公开(公告)号：US11944778B2

公开(公告)日：2024-04-02

申请号：US17381762

申请日：2021-07-21

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

Inventor： Badr Elmaanaoui

IPC: A61B5/00 ,  A61M5/00 ,  G06V10/25

CPC classification number: A61M5/007 ,  A61B5/0066 ,  G06V10/25

Abstract: One or more devices, systems, methods, and storage mediums for optical imaging medical devices, such as, but not limited to, Optical Coherence Tomography (OCT), single mode OCT, and/or multi-modal OCT apparatuses and systems, and methods and storage mediums for use with same, for triggering auto-pullback, including for devices or systems using blood clearing, are provided herein. Examples of 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, such as, but not limited to, optical probes, catheters, capsules and needles (e.g., a biopsy needle). Techniques provided herein also improve processing and imaging efficiency while achieving images that are more precise.

公开(公告)号：US11502633B2

公开(公告)日：2022-11-15

申请号：US16864794

申请日：2020-05-01

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

Inventor： Badr Elmaanaoui ,  Alexander Altshuler ,  Pierre-Yves Mabboux

IPC: H02P23/24

Abstract: System, apparatus, and methods for controlling a motor by using servo-to-edge direction feedback are disclosed. An exemplary apparatus comprises: a fiber optic rotary junction (FORJ) having a rotatable portion; a motor to rotate the rotatable portion; a connector to connect the rotatable portion to a rotatable fiber of an imaging probe; a sensor positioned in close proximity to a target and configured to output a signal indicative of which one of at least two distinguishable regions of the target is proximal to the sensor; and a controller configured to control the rotational direction of the motor based on the sensor signal. In one embodiment, the motor is a servo-motor, and the rotation of the motor and/or rotatable portion is controlled by a servo-loop to change the rotation direction of the motor back-and-forth around a predetermined rotational position without the use of an encoder.

公开(公告)号：US11473896B2

公开(公告)日：2022-10-18

申请号：US15672003

申请日：2017-08-08

Applicant: Canon U.S.A. Inc.

Inventor： Badr Elmaanaoui

IPC: G01B9/02 ,  G01B9/02091 ,  G01B9/02056 ,  A61B5/00 ,  G01B9/02015

Abstract: One or more devices, systems, methods and storage mediums for performing common path optical coherence tomography (OCT) with a controlled reference signal and efficient geometric coupling are provided. 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, such as, but not limited to, optical probes (e.g., common path probes), common path catheters, common path capsules and common path needles (e.g., a biopsy needle). Preferably, the OCT devices, systems methods and storage mediums include or involve a reference reflection or a reference plane that is at least one of: (i) disposed in the collimation field or path; and (ii) is perpendicular (or normal) or substantially perpendicular (or substantially normal) to light propagation. One or more embodiments may include beam shaping optics to properly image luminal or other hollow structures or objects.

公开(公告)号：US11175126B2

公开(公告)日：2021-11-16

申请号：US16823164

申请日：2020-03-18

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

Inventor： Badr Elmaanaoui ,  Matthew Scott Pias ,  Pierre-Yves Mabboux

IPC: G01B9/02 ,  A61B3/10

Abstract: One or more devices, systems, methods and storage mediums for optical imaging medical devices, such as, but not limited to, Optical Coherence Tomography (OCT), single mode OCT, and/or multi-modal OCT apparatuses and systems, and methods and storage mediums for use with same, for performing automated polarization control, polarization diversity and/or balanced detection are provided herein. One or more embodiments may achieve polarization diversity and balanced detection (or photo-detection) under any imaging circumstances. One or more embodiments, may achieve polarization control functionality regardless of whether such control is automatic or manual. Additionally, one or more embodiments may achieve automated polarization control, may achieve balanced detection (or photo-detection), and/or may address potential disturbances, such as, but not limited to, polarization drift over time, temperature and/or mechanical perturbations or variations. One or more embodiments may include an optical receiver where polarization diversity and balanced detection may be optimized via motorized controls.

公开(公告)号：US10952702B2

公开(公告)日：2021-03-23

申请号：US15628093

申请日：2017-06-20

Applicant: Canon U.S.A. Inc.

Inventor： Mark Alan Hamm ,  Bin Wu ,  Albert Dunfee ,  Badr Elmaanaoui

IPC: A61B8/12 ,  A61B8/00 ,  G01S7/52 ,  G01S15/89

Abstract: Exemplary probes including longitudinal marker elements arranged parallel to the probe axis are provided for reducing or eliminating non-uniform rotational distortions (NURD) in imaging systems. Additional ring marker elements may also be provided to reduce or eliminate non-uniform linear distortion (NULD). These probes, as well as systems and methods of use provide for images having better image quality and reduced NURD.

公开(公告)号：US20200318944A1

公开(公告)日：2020-10-08

申请号：US16823164

申请日：2020-03-18

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

Inventor： Badr Elmaanaoui ,  Matthew Scott Pias ,  Pierre-Yves Mabboux

IPC: G01B9/02

Abstract: One or more devices, systems, methods and storage mediums for optical imaging medical devices, such as, but not limited to, Optical Coherence Tomography (OCT), single mode OCT, and/or multi-modal OCT apparatuses and systems, and methods and storage mediums for use with same, for performing automated polarization control, polarization diversity and/or balanced detection are provided herein. One or more embodiments may achieve polarization diversity and balanced detection (or photo-detection) under any imaging circumstances. One or more embodiments, may achieve polarization control functionality regardless of whether such control is automatic or manual. Additionally, one or more embodiments may achieve automated polarization control, may achieve balanced detection (or photo-detection), and/or may address potential disturbances, such as, but not limited to, polarization drift over time, temperature and/or mechanical perturbations or variations. One or more embodiments may include an optical receiver where polarization diversity and balanced detection may be optimized via motorized controls.

公开(公告)号：US10782117B2

公开(公告)日：2020-09-22

申请号：US16119818

申请日：2018-08-31

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

Inventor： Badr Elmaanaoui

IPC: G01B9/02

Abstract: An optical coherence tomography (OCT) system comprises an interferometer configured to generate interference light based on interference between a reference beam and a sample beam with which a sample has been irradiated. A detector operates to detect intensities of the interference light and/or one or more interference patterns; a processor is configured measure a signal falloff of the intensity of the interference light and/or the one or more interference patterns; and an optical delay line configured to adjust an optical path difference according to the signal falloff so as not substantially introduce artifacts to an image of the sample. In one embodiment, the optical delay line includes a main reflector consisting of a mirror and a Faraday rotator; the Faraday rotator is placed between the n and n+1 coherence revival modes of the interferometer, where n is greater than or equal to 1.

公开(公告)号：US20200013164A1

公开(公告)日：2020-01-09

申请号：US16460864

申请日：2019-07-02

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

Inventor： Badr Elmaanaoui

IPC: G06T7/00 ,  A61B1/04 ,  A61B1/00 ,  G06T7/33

Abstract: Methods and systems for imaging a lumen, wherein imaging is manipulated to provide centered magnified version of the image, yielding precise and centered images for better efficacy in real-time treatment by practitioners and experts.

公开(公告)号：US20190313975A1

公开(公告)日：2019-10-17

申请号：US15955574

申请日：2018-04-17

Applicant: Canon U.S.A. Inc.

Inventor： Albert Harold Dunfee ,  Seiji Takeuchi ,  Badr Elmaanaoui ,  Mark Alan Hamm

IPC: A61B5/00 ,  A61M25/01 ,  A61M25/00

Abstract: An imaging catheter assembly comprising a catheter comprising: a proximal end; a distal end; a tubular body extending from the proximal end to the distal end; and an imaging element within the tubular body; a sheath comprising: a proximal end; a distal end; and a tubular body extending from the proximal end to the distal end, the tubular body having an inner surface, wherein the inner surface of the tubular body of the sheath at least partially defines a conduit for conveying a fluid to the distal end of the sheath, and wherein the sheath is movable such that the distal end of the sheath is positionable relative to the distal end of the catheter.

公开(公告)号：US20190150720A1

公开(公告)日：2019-05-23

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 ,  A61B1/06 ,  A61B1/00

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”).