Patents by Inventor Brian Chiu

Brian Chiu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250057401
    Abstract: A drive assembly for driving an imaging catheter has a rotatable fiber and a rotatable drive shaft. The drive assembly includes a fiber optic rotating junction and a motor configured to rotate the rotatable portion of the fiber optic rotating junction. In some embodiments, the drive assembly includes a sensor configured to detect a rotational position of the fiber optic rotating junction and a processor configured to obtain the detected rotational position and stop the motor only when the fiber optic rotating junction is in a predetermined rotational position. In some embodiments, the motor includes a hollow shaft through which at least a portion of the fiber optic rotating junction extends.
    Type: Application
    Filed: November 6, 2024
    Publication date: February 20, 2025
    Inventors: Brian Y. TACHIBANA, Charles W. MCNALL, Michael ZUNG, Peter Howard SMITH, Brian CHIU, Douglas Joseph Scott BOURNE, Priyanshu GUPTA
  • Patent number: 12171407
    Abstract: A drive assembly for driving an imaging catheter has a rotatable fiber and a rotatable drive shaft. The drive assembly includes a fiber optic rotating junction and a motor configured to rotate the rotatable portion of the fiber optic rotating junction. In some embodiments, the drive assembly includes a sensor configured to detect a rotational position of the fiber optic rotating junction and a processor configured to obtain the detected rotational position and stop the motor only when the fiber optic rotating junction is in a predetermined rotational position. In some embodiments, the motor includes a hollow shaft through which at least a portion of the fiber optic rotating junction extends.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: December 24, 2024
    Assignee: Avinger, Inc.
    Inventors: Brian Y. Tachibana, Charles W. McNall, Michael Zung, Peter Howard Smith, Brian Chiu, Douglas Joseph Scott Bourne, Priyanshu Gupta
  • Publication number: 20240180472
    Abstract: Electrical ventricular depolarization may be represented by its vectorcardiographic QRS loop, which exists in 3D space. By recognizing that the QRS loop is often a closed trajectory on a plane (2D), it is possible to change (e.g., by rotation, projection, etc.) the single-channel QRS into a different view angle along that plane to provide a viewpoint more favorable for morphologic interpretation. Any monophasic or biphasic single-channel QRS (time series) waveform can be decomposed into the form x(?,t)=sin(?t)u(t), with t spanning [0,2?], where u(t) is an unchanging intrinsic component that is generally upright and monophasic, and where sin(?t) is a changeable component of the waveform. This way, x(?,t) may be changed by replacing a parameter of the original changeable component sin(?t) with a second parameter associated with a target view of the waveform, such as the upright monophasic sin(0.5t). Meanwhile the intrinsic component remains unchanged during this change.
    Type: Application
    Filed: November 30, 2023
    Publication date: June 6, 2024
    Inventors: Wei-min Brian CHIU, Derek RINDERKNECHT, Faisal AMLANI
  • Publication number: 20220183545
    Abstract: A drive assembly for driving an imaging catheter has a rotatable fiber and a rotatable drive shaft. The drive assembly includes a fiber optic rotating junction and a motor configured to rotate the rotatable portion of the fiber optic rotating junction. In some embodiments, the drive assembly includes a sensor configured to detect a rotational position of the fiber optic rotating junction and a processor configured to obtain the detected rotational position and stop the motor only when the fiber optic rotating junction is in a predetermined rotational position. In some embodiments, the motor includes a hollow shaft through which at least a portion of the fiber optic rotating junction extends.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 16, 2022
    Inventors: Brian Y. TACHIBANA, Charles W. McNALL, Michael ZUNG, Peter Howard SMITH, Brian CHIU, Douglas Joseph Scott BOURNE, Priyanshu GUPTA
  • Patent number: 11206975
    Abstract: A drive assembly for driving an imaging catheter has a rotatable fiber and a rotatable drive shaft. The drive assembly includes a fiber optic rotating junction and a motor configured to rotate the rotatable portion of the fiber optic rotating junction. In some embodiments, the drive assembly includes a sensor configured to detect a rotational position of the fiber optic rotating junction and a processor configured to obtain the detected rotational position and stop the motor only when the fiber optic rotating junction is in a predetermined rotational position. In some embodiments, the motor includes a hollow shaft through which at least a portion of the fiber optic rotating junction extends.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: December 28, 2021
    Assignee: Avinger, Inc.
    Inventors: Brian Y. Tachibana, Charles W. McNall, Michael Zung, Peter Howard Smith, Brian Chiu, Douglas Joseph Scott Bourne, Priyanshu Gupta
  • Publication number: 20200029801
    Abstract: A drive assembly for driving an imaging catheter has a rotatable fiber and a rotatable drive shaft. The drive assembly includes a fiber optic rotating junction and a motor configured to rotate the rotatable portion of the fiber optic rotating junction. In some embodiments, the drive assembly includes a sensor configured to detect a rotational position of the fiber optic rotating junction and a processor configured to obtain the detected rotational position and stop the motor only when the fiber optic rotating junction is in a predetermined rotational position. In some embodiments, the motor includes a hollow shaft through which at least a portion of the fiber optic rotating junction extends.
    Type: Application
    Filed: April 1, 2019
    Publication date: January 30, 2020
    Inventors: Brian Y. TACHIBANA, Charles W. McNALL, Michael ZUNG, Peter Howard SMITH, Brian CHIU, Douglas Joseph Scott BOURNE, Priyanshu GUPTA
  • Patent number: 10244934
    Abstract: A drive assembly for driving an imaging catheter has a rotatable fiber and a rotatable drive shaft. The drive assembly includes a fiber optic rotating junction and a motor configured to rotate the rotatable portion of the fiber optic rotating junction. In some embodiments, the drive assembly includes a sensor configured to detect a rotational position of the fiber optic rotating junction and a processor configured to obtain the detected rotational position and stop the motor only when the fiber optic rotating junction is in a predetermined rotational position. In some embodiments, the motor includes a hollow shaft through which at least a portion of the fiber optic rotating junction extends.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: April 2, 2019
    Assignee: Avinger, Inc.
    Inventors: Brian Y. Tachibana, Charles W. McNall, Michael Zung, Peter Howard Smith, Brian Chiu, Douglas Joseph Scott Bourne, Priyanshu Gupta
  • Publication number: 20160338582
    Abstract: A drive assembly for driving an imaging catheter has a rotatable fiber and a rotatable drive shaft. The drive assembly includes a fiber optic rotating junction and a motor configured to rotate the rotatable portion of the fiber optic rotating junction. In some embodiments, the drive assembly includes a sensor configured to detect a rotational position of the fiber optic rotating junction and a processor configured to obtain the detected rotational position and stop the motor only when the fiber optic rotating junction is in a predetermined rotational position. In some embodiments, the motor includes a hollow shaft through which at least a portion of the fiber optic rotating junction extends.
    Type: Application
    Filed: May 23, 2016
    Publication date: November 24, 2016
    Inventors: Brian Y. TACHIBANA, Charles W. McNALL, Michael ZUNG, Peter Howard SMITH, Brian CHIU, Douglas Joseph Scott BOURNE, Priyanshu GUPTA
  • Patent number: 9345398
    Abstract: A drive assembly for driving an imaging catheter has a rotatable fiber and a rotatable drive shaft. The drive assembly includes a fiber optic rotating junction and a motor configured to rotate the rotatable portion of the fiber optic rotating junction. In some embodiments, the drive assembly includes a sensor configured to detect a rotational position of the fiber optic rotating junction and a processor configured to obtain the detected rotational position and stop the motor only when the fiber optic rotating junction is in a predetermined rotational position. In some embodiments, the motor includes a hollow shaft through which at least a portion of the fiber optic rotating junction extends.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 24, 2016
    Assignee: Avinger, Inc.
    Inventors: Brian Y. Tachibana, Charles W. McNall, Michael Zung, Peter Howard Smith, Brian Chiu, Douglas Joseph Scott Bourne, Priyanshu Gupta
  • Patent number: 9226676
    Abstract: Disclosed herein methods, devices, and systems for detecting and diagnosing a diabetic disease or disorder in a subject from a prime electrocardiogram which comprises calculating at least one distribution function of the prime electrocardiogram and determining whether the distribution function is indicative of the presence of absence of the diabetic disease or disorder.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: January 5, 2016
    Assignee: Dynacardia, Inc.
    Inventor: Wei-min Brian Chiu
  • Publication number: 20150126856
    Abstract: A drive assembly for driving an imaging catheter has a rotatable fiber and a rotatable drive shaft. The drive assembly includes a fiber optic rotating junction and a motor configured to rotate the rotatable portion of the fiber optic rotating junction. In some embodiments, the drive assembly includes a sensor configured to detect a rotational position of the fiber optic rotating junction and a processor configured to obtain the detected rotational position and stop the motor only when the fiber optic rotating junction is in a predetermined rotational position. In some embodiments, the motor includes a hollow shaft through which at least a portion of the fiber optic rotating junction extends.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 7, 2015
    Inventors: Brian Y. Tachibana, Charles W. McNall, Michael Zung, Peter Howard Smith, Brian Chiu, Douglas Joseph Scott Bourne, Priyanshu Gupta
  • Publication number: 20150032015
    Abstract: Disclosed herein methods, devices, and systems for detecting and diagnosing a diabetic disease or disorder in a subject from a prime electrocardiogram which comprises calculating at least one distribution function of the prime electrocardiogram and determining whether the distribution function is indicative of the presence of absence of the diabetic disease or disorder.
    Type: Application
    Filed: March 8, 2013
    Publication date: January 29, 2015
    Applicant: DYNACARDIA, INC.
    Inventor: Wei-min Brian Chiu
  • Patent number: 8626274
    Abstract: Disclosed herein methods, devices, and systems for detecting and diagnosing a heart disease or disorder in a subject from a prime electrocardiogram which comprises calculating at least one distribution function of the prime electrocardiogram and determining whether the distribution function is indicative of the presence of absence of the heart disease or disorder.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: January 7, 2014
    Assignee: Dynacardia, Inc.
    Inventors: Wei-Min Brian Chiu, Chi-Jen Tseng
  • Publication number: 20120330170
    Abstract: Disclosed herein methods, devices, and systems for detecting and diagnosing a heart disease or disorder in a subject from a prime electrocardiogram which comprises calculating at least one distribution function of the prime electrocardiogram and determining whether the distribution function is indicative of the presence of absence of the heart disease or disorder.
    Type: Application
    Filed: December 31, 2008
    Publication date: December 27, 2012
    Inventors: Wei-Min Brian Chiu, Chi-Jen Tseng
  • Publication number: 20110077542
    Abstract: Disclosed herein methods, devices, and systems for detecting and diagnosing a heart disease or disorder in a subject from a prime electrocardiogram which comprises calculating at least one distribution function of the prime electrocardiogram and determining whether the distribution function is indicative of the presence of absence of the heart disease or disorder.
    Type: Application
    Filed: December 3, 2010
    Publication date: March 31, 2011
    Applicant: DYNACARDIA, INC.
    Inventors: Chi-jen Tseng, Wei-min Brian Chiu
  • Patent number: 7869864
    Abstract: Disclosed herein methods, devices, and systems for detecting and diagnosing a heart disease or disorder in a subject from a prime electrocardiogram which comprises calculating at least one distribution function of the prime electrocardiogram and determining whether the distribution function is indicative of the presence of absence of the heart disease or disorder.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: January 11, 2011
    Assignee: Dynacardia, Inc.
    Inventors: Chi-jen Tseng, Wei-min Brian Chiu
  • Publication number: 20090018459
    Abstract: Disclosed herein methods, devices, and systems for detecting and diagnosing a heart disease or disorder in a subject from a prime electrocardiogram which comprises calculating at least one distribution function of the prime electrocardiogram and determining whether the distribution function is indicative of the presence of absence of the heart disease or disorder.
    Type: Application
    Filed: July 9, 2007
    Publication date: January 15, 2009
    Inventors: Chi-jen Tseng, Wei-min Brian Chiu
  • Patent number: 7419501
    Abstract: A method of deploying a prosthesis includes engaging a hub assembly of a handle to a threaded outer surface of a slide shaft of the handle; rotating the hub assembly to cause axial translation of the hub assembly and a sheath coupled to the hub assembly to initiate deployment of the prosthesis; disengaging the hub assembly from the threaded outer surface by pivoting a thread tooth of the hub assembly out of threaded engagement with the threaded outer surface; and sliding the hub assembly on the slide shaft to further retract the sheath and complete deployment of the prosthesis.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: September 2, 2008
    Assignee: Medtronic Vascular, Inc.
    Inventors: Brian Chiu, Ari Gershman, Burt Goodson, Paul L. Weber, Richard E. Repp, David F. Jensen
  • Patent number: 6808088
    Abstract: A spigot device for a liquid container includes a single-piece molded conduit confining a primary passage and a channel which are surrounded by an outer surrounding wall and which are not communicated with each other within the conduit. An intake end of each of the primary passage and the channel is in fluid communication with a bottom outlet of the container. An exit end of the primary passage is in fluid communication with a fluid passage in which a valve body is disposed to control flow of liquid from the container into a spout. An upright branch tube is in fluid communication with the channel to permit the liquid in the container to flow into the branch tube so that the level of the liquid in the container can be monitored by observing the level of the liquid in the branch tube.
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: October 26, 2004
    Assignee: Fuu Hwa Vacuum Bottle Co., Ltd.
    Inventor: Brian Chiu
  • Publication number: 20040004094
    Abstract: A spigot device for a liquid container includes a single-piece molded conduit confining a primary passage and a channel which are surrounded by an outer surrounding wall and which are not communicated with each other within the conduit. An intake end of each of the primary passage and the channel is in fluid communication with a bottom outlet of the container. An exit end of the primary passage is in fluid communication with a fluid passage in which a valve body is disposed to control flow of liquid from the container into a spout. An upright branch tube is in fluid communication with the channel to permit the liquid in the container to flow into the branch tube so that the level of the liquid in the container can be monitored by observing the level of the liquid in the branch tube.
    Type: Application
    Filed: July 5, 2002
    Publication date: January 8, 2004
    Applicant: FUU HWA VACUUM BOTTLE CO., LTD.
    Inventor: Brian Chiu