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11.发明申请公开(公告)号：US20200256661A1
公开(公告)日：2020-08-13
申请号：US16783786
申请日：2020-02-06
申请人： Canon U.S.A., Inc.
发明人： Daisuke Yamada
摘要： Apparatus, methods and systems relating to fluorescence imaging, and more particularly, to reducing or eliminating light sensitive and insensitive background noise in fluorescence spectroscopy systems, as well as optical coherence tomography (OCT) systems.
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公开(公告)号：US20190033538A1
公开(公告)日：2019-01-31
申请号：US15658936
申请日：2017-07-25
申请人： CANON U.S.A., INC.
CPC分类号： G02B6/4206 , G02B6/32 , G02B6/3604 , G02B6/3873 , G02B6/4234 , G02B6/4256 , G02B7/00
摘要： A first optical axis of a first optical component is caused to be at a first angle with respect to a first precision surface of the first optical component. A second optical axis of a second optical component is aligned to be at a second angle to a second flat surface of the second optical component. The second angle is equal to or derived from the first angle. The first and second flat surfaces are caused to directly face each other to allow only sliding motion between the first and second flat surfaces. The sliding motion is performed between the first and second flat surfaces until the first and second optical axes are sufficiently collinear.
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公开(公告)号：US20240125588A1
公开(公告)日：2024-04-18
申请号：US18046448
申请日：2022-10-13
申请人： Canon U.S.A., Inc.
IPC分类号： G01B9/02091 , G01B9/02055
CPC分类号： G01B9/02091 , G01B9/02072
摘要： A multimodality system includes first and second modalities, an optical probe, a detector, and a phantom with a known fluorescence, wherein the phantom would be used for calibration of the catheter providing accurate NIRAF values to the user using the phantom to calibrate an optical probe's measured NIRAF signal to the known fluorescence of the phantom.
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公开(公告)号：US11571129B2
公开(公告)日：2023-02-07
申请号：US16148421
申请日：2018-10-01
申请人： CANON U.S.A., INC.
发明人： Mie Kunio , Daisuke Yamada , Yohei Minatoya
IPC分类号： A61B5/00 , A61F2/92 , A61B8/12 , G06F3/048 , G06F3/0488 , G16H30/40 , G06T7/00 , G16H10/60 , G16H30/20 , A61B5/06 , A61B5/107
摘要： A method for processing an intravascular image including a plurality of image frames acquired during a pullback of an imaging catheter inserted into a vessel, the method including displaying on a graphical user interface (GUI) an image including detected results of lumen borders and at least one stent, the image including an evaluated stent expansion and an evaluated stent apposition determined from the intravascular image. The method also includes determining whether a modification to the detected results of the stent has been received by the GUI. Then, re-evaluating stent length, stent expansion and stent apposition when it is determined that the detected results of the stent has been modified via the GUI and displaying the re-evaluated stent expansion and the re-evaluated stent apposition on the GUI.
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15.发明授权公开(公告)号：US11259702B2
公开(公告)日：2022-03-01
申请号：US15689561
申请日：2017-08-29
申请人： Canon U.S.A., Inc.
发明人： Daisuke Yamada
IPC分类号： A61B5/00
摘要： An optical coherence tomographic (OCT) system includes a sample arm, a reference arm and an OCT probe. The probe irradiates a bodily lumen and a fluid contained within the bodily lumen with light of a sample beam transmitted through a double-clad fiber (DCF). A first detector detects light of a reference beam and light reflected from the bodily lumen and propagated through the core of the DCF to generate OCT interference signals. Light backscattered by the bodily lumen and by the fluid contained in the bodily lumen is propagated through a cladding of the DCF and detected by a second detector to generate an intensity signal. A processor analyzes the intensity signal, and triggers a pullback of the probe and initiates recording of OCT images of the bodily lumen in response to the intensity the backscattered light reaching a predetermined threshold value.
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公开(公告)号：US10884199B2
公开(公告)日：2021-01-05
申请号：US16243934
申请日：2019-01-09
申请人： CANON U.S.A., INC.
摘要： A first optical axis of a first optical component is caused to be at a first angle with respect to a first precision surface of the first optical component. A second optical axis of a second optical component is aligned to be at a second angle to a second flat surface of the second optical component. The second angle is equal to or derived from the first angle. The first and second flat surfaces are caused to directly face each other to allow only sliding motion between the first and second flat surfaces. The sliding motion is performed between the first and second flat surfaces until the first and second optical axes are sufficiently collinear.
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公开(公告)号：US20200085285A1
公开(公告)日：2020-03-19
申请号：US16131662
申请日：2018-09-14
申请人： Canon U.S.A., Inc.
发明人： Daisuke Yamada
摘要： A catheter system includes an electronic console; a catheter having a proximal end attachable to the console and a distal end configured to house therein an optical probe; an optical fiber configured to transmit from the console to the optical probe excitation radiation of a first wavelength, and configured to return to the console an optical response signal having a second wavelength longer than the first wavelength; a detector configured to detect intensity of the optical response signal; and a processor configured to determine, based on the detected intensity of the optical response signal, whether the catheter is properly connected to the console. The optical response signal is generated within the optical fiber itself in response to transmitting the excitation radiation therethrough. The optical response signal is an auto-fluorescence signal and/or Raman scattering signal generated from the optical fiber itself.
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公开(公告)号：US10558001B2
公开(公告)日：2020-02-11
申请号：US15658936
申请日：2017-07-25
申请人： CANON U.S.A., INC.
摘要： A first optical axis of a first optical component is caused to be at a first angle with respect to a first precision surface of the first optical component. A second optical axis of a second optical component is aligned to be at a second angle to a second flat surface of the second optical component. The second angle is equal to or derived from the first angle. The first and second flat surfaces are caused to directly face each other to allow only sliding motion between the first and second flat surfaces. The sliding motion is performed between the first and second flat surfaces until the first and second optical axes are sufficiently collinear.
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公开(公告)号：US20190102906A1
公开(公告)日：2019-04-04
申请号：US15723633
申请日：2017-10-03
申请人： Canon U.S.A., Inc.
发明人： Mie Kunio , Daisuke Yamada , Badr Elmaanaoui
摘要： A method for processing an intravascular image including a plurality of image frames acquired during a pullback of an imaging catheter inserted into a vessel. The method includes obtaining positions of lumen borders detected in the intravascular image and positions of stent-struts detected in the intravascular image. Determining, at different positions in a range, a stent expansion value of the stent implanted in the vessel, based on the first information and the second information, wherein each image frame from image frames in which stent-struts are detected corresponds to a different position along the range. The method may also include displaying an image including positions of lumen borders and positions of the stent-struts detected and a first indicator indicating a level along the range, of the stent expansion value, with the image.
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20.发明申请公开(公告)号：US20190059734A1
公开(公告)日：2019-02-28
申请号：US15689561
申请日：2017-08-29
申请人： Canon U.S.A., Inc.
发明人： Daisuke Yamada
IPC分类号： A61B5/00
摘要： An optical coherence tomographic (OCT) system includes a sample arm, a reference arm and an OCT probe. The probe irradiates a bodily lumen and a fluid contained within the bodily lumen with light of a sample beam transmitted through a double-clad fiber (DCF). A first detector detects light of a reference beam and light reflected from the bodily lumen and propagated through the core of the DCF to generate OCT interference signals. Light backscattered by the bodily lumen and by the fluid contained in the bodily lumen is propagated through a cladding of the DCF and detected by a second detector to generate an intensity signal. A processor analyzes the intensity signal, and triggers a pullback of the probe and initiates recording of OCT images of the bodily lumen in response to the intensity the backscattered light reaching a predetermined threshold value.
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