Patents by Inventor Douglas Gerald Evans

Douglas Gerald Evans 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).

  • Patent number: 6322499
    Abstract: An illuminated surgical retractor for illuminating a subcutaneous surgical field in the space between a vessel, such as the saphenous vein, and the subcutaneous tissue when the illuminated retractor is used to retract the subcutaneous tissue away from the superior surface of the vessel, the illuminated surgical retractor having a handle member pivotally connected at an acute angle to a first elongate section and a second elongate section that is releasably connected to the first elongate section and a portion of the second elongate section defining an illumination input end portion which is optically coupled to a light source so that the second elongate section is substantially illuminated, and, a shroud member is positioned on the proximal end portion of the first elongate section to aid in the dissection of the intervening tissue.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: November 27, 2001
    Assignee: Genzyme Corporation
    Inventors: Douglas Gerald Evans, Donna DiMarco Holland