Patents by Inventor Doug Izuno

Doug Izuno 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).

  • Dual valve, flexible sheath and method
    Patent number: 6652492
    Abstract: A large-diameter sheath and assembly for use in introducing a catheter or other medical device into a vessel of the body of a patient. The sheath comprises an elongate sheath tube formed of a flexible material which has proximal and distal extremities and a passage extending therethrough of a predetermined maximum diameter. The sheath tube may either be expandable, with the distal extremity folded longitudinally to a smaller folded diameter, or of a constant diameter. If expandable, the sheath tube may be self-expanding or may be reinforced with a self-expanding wire or expandable stents. A backflow adapter is secured to the proximal extremity of the elongate sheath tube.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: November 25, 2003
    Assignee: Endovascular Technologies, Inc.
    Inventors: Paul Bell, Doug Izuno, Michael G. Fourkas