Patents by Inventor Douglas Sjostrom

Douglas Sjostrom 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: 8708891
    Abstract: A stereoscopic coupler for mechanically and optically coupling an endoscope to a portion of a camera, the stereoscopic coupler including means for mechanically and optically coupling the stereoscopic coupler to an endoscope; and means for mechanically and optically coupling the stereoscopic coupler to a portion of a camera; wherein the stereoscopic coupler includes a pair of optics; a mechanical actuator for operation by a user; and means for physically moving the pair of optics as a unit in response to movement of the mechanical actuator by the user.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: April 29, 2014
    Assignee: Viking Systems, Inc.
    Inventors: Douglas Sjostrom, John E. Kennedy, Dennis Arsenault, Yuri Kazakevich
  • Publication number: 20110295071
    Abstract: A stereoscopic coupler for mechanically and optically coupling an endoscope to a portion of a camera, the stereoscopic coupler comprising: means for mechanically and optically coupling the stereoscopic coupler to an endoscope; and means for mechanically and optically coupling the stereoscopic coupler to a portion of a camera; wherein the stereoscopic coupler comprises: a pair of optics; a mechanical actuator for operation by a user; and means for physically moving the pair of optics as a unit in response to movement of the mechanical actuator by the user.
    Type: Application
    Filed: April 28, 2011
    Publication date: December 1, 2011
    Inventors: Douglas Sjostrom, John E. Kennedy, Dennis Arsenault, Yuri Kazakevich
  • Publication number: 20060229647
    Abstract: A method for removing a vein includes making an incision through a skin layer of a patient, inserting a surgical instrument through the incision, visualizing the vein through the skin layer using a light source positioned subcutaneously and in proximity of the vein, and cutting the vein using the surgical instrument. The vein can be visualized by directing light from the light source at the vein from underneath the vein or from a side of the vein. A device for illuminating a body structure has a housing with a distal end configured for subcutaneous insertion into a patient's tissue and positioning in proximity of the body structure, a light path supported by the housing and configured for directing light at the body structure, and a fluid lane supported by the housing.
    Type: Application
    Filed: February 24, 2006
    Publication date: October 12, 2006
    Inventors: Gregory Spitz, Douglas Sjostrom, Alexander Grinberg, Michael Long
  • Publication number: 20050240206
    Abstract: A surgical instrument includes a movable member having a proximal portion, the movable member defining an opening at the proximal portion. The instrument includes a stationary member defining an aperture. The stationary member is arranged relative to the movable member with a close fit between the stationary member and the movable member such that aspiration occurs through the movable member substantially only during a portion of a repetitive motion of the movable member. The instrument includes a surgical handpiece coupled to the movable member and the stationary member to provide suction and motion to the movable member. A method of regulating aspiration through a surgical instrument includes providing a close fit between a moving member having an opening at a proximal portion and a stationary member having an aperture such that aspiration occurs through the moving member substantially only during a portion of a repetitive motion of the movable member.
    Type: Application
    Filed: April 21, 2004
    Publication date: October 27, 2005
    Inventor: Douglas Sjostrom
  • Patent number: D652923
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: January 24, 2012
    Assignee: Viking Systems, Inc.
    Inventors: John Kennedy, Douglas Sjostrom, Dennis Arsenault
  • Patent number: D676387
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: February 19, 2013
    Assignee: Viking Systems, Inc.
    Inventors: John Kennedy, Douglas Sjostrom, Dennis Arsenault