Patents by Inventor Bjarne B. CHRISTENSEN

Bjarne B. CHRISTENSEN 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).

  • OCT imaging catheter with lag correction
    Patent number: 11278248
    Abstract: A catheter system includes a catheter body, an imaging sensor, a drive motor, a current sensor, a display, and a controller. The catheter body includes a drive shaft. The imaging sensor is fixed relative to the distal end of the driveshaft and is configured to rotate therewith. The drive motor is configured to rotate the drive shaft. The current sensor is configured to measure an amount of current drawn by the drive motor as the drive shaft is rotated. The display is configured to display one or more images obtained by the imaging sensor as the imaging sensor is rotated. The controller is configured to adjust a rotational orientation of the one or more images displayed by the display based upon the measured current.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: March 22, 2022
    Assignee: Avinger, Inc.
    Inventor: Bjarne B. Christensen
  • OCT IMAGING CATHETER WITH LAG CORRECTION
    Publication number: 20190021679
    Abstract: A catheter system includes a catheter body, an imaging sensor, a drive motor, a current sensor, a display, and a controller. The catheter body includes a drive shaft. The imaging sensor is fixed relative to the distal end of the driveshaft and is configured to rotate therewith. The drive motor is configured to rotate the drive shaft. The current sensor is configured to measure an amount of current drawn by the drive motor as the drive shaft is rotated. The display is configured to display one or more images obtained by the imaging sensor as the imaging sensor is rotated. The controller is configured to adjust a rotational orientation of the one or more images displayed by the display based upon the measured current.
    Type: Application
    Filed: January 25, 2017
    Publication date: January 24, 2019
    Applicant: AVINGER, INC.
    Inventor: Bjarne B. CHRISTENSEN