Patents by Inventor Douglas R. Carroll

Douglas R. Carroll 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).

  • Near infra red fluorescence imaging for visualization of blood vessels during endoscopic harvest
    Patent number: 10492671
    Abstract: Endoscopic identification and dissection of a blood vessel in tissue during endoscopic harvest can be enhanced by injecting a bolus of ICG into the bloodstream, illuminating the target vessels with excitation light capable of exciting fluorescence in the ICG, and locating the vessel to be harvested by observing the ICG fluorescence. Moreover, collapsed blood vessel may be harvested by inserting an endoscope into the collapsed blood vessel, injecting into the collapsed blood vessel a bolus containing ICG to re-inflate the blood vessel, illuminating the target vessels with excitation light capable of exciting fluorescence in the ICG; and locating the re-inflated blood vessel by observing the ICG fluorescence.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: December 3, 2019
    Assignee: Novadaq Technologies ULC
    Inventors: Douglas R. Carroll, Robert W. Flower, John C. Docherty
  • NEAR INFRA RED FLUORESCENCE IMAGING FOR VISUALIZATION OF BLOOD VESSELS DURING ENDOSCOPIC HARVEST
    Publication number: 20100286529
    Abstract: Endoscopic identification and dissection of a blood vessel in tissue during endoscopic harvest can be enhanced by injecting a bolus of ICG into the bloodstream, illuminating the target vessels with excitation light capable of exciting fluorescence in the ICG, and locating the vessel to be harvested by observing the ICG fluorescence. Moreover, collapsed blood vessel may be harvested by inserting an endoscope into the collapsed blood vessel, injecting into the collapsed blood vessel a bolus containing ICG to re-inflate the blood vessel, illuminating the target vessels with excitation light capable of exciting fluorescence in the ICG; and locating the re-inflated blood vessel by observing the ICG fluorescence.
    Type: Application
    Filed: May 10, 2010
    Publication date: November 11, 2010
    Applicant: NOVADAQ TECHNOLOGIES INC.
    Inventors: Douglas R. Carroll, Robert W. Flower, John C. Docherty