Patents by Inventor Douglas Jay Wagenaar

Douglas Jay Wagenaar 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: 7676255
    Abstract: A medical imaging system having a patient support apparatus is provided. The medical imaging system includes a framework portion and a kit of rigid modular patient support panels, constructed of material having a radiation attenuation coefficient less than that of metals. The panels in sub-combination are removably mounted to and supported by the framework portion. The panels are selectively assembled to define varying surface profiles, including selective gaps there between, that are capable of conforming a patient in contact with the surface profile in a range of supported body positions from supine to seated.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: March 9, 2010
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Sharon Xiaorong Wang, Douglas Jay Wagenaar, Ansgar Graw
  • Patent number: 7385201
    Abstract: A nuclear medicine imaging system is disclosed that includes a detector including a plurality of silicon strip sensor arrays surrounding a scintillator. In some embodiments, strip detectors can be provided that can lead to significant cost benefits as compared to existing detectors, such as existing nuclear detectors. The preferred embodiments may be applied in nuclear medical cameras, while other embodiments may be applied in other radiation applications, whether medical or non-medical applications.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: June 10, 2008
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Jinhun Joung, Samir Chowdhury, Douglas Jay Wagenaar, Almos Elekes
  • Patent number: 7335888
    Abstract: The present invention relates to an apparatus for nuclear medicine imaging in which the imaging platform is attached directly to the detectors for nuclear imaging to allow for minimal constant distance between the detector(s) and the object to be imaged. As the detector moves around the object to be imaged to capture different angular views of the object, the imaging platform is rotated in a compensatory manner to maintain a its long axis perpendicular to gravity during movement of the detector. An advantage of this configuration over prior systems is the ability to obtain multiple angular projections while the distance between the detector and the object being imaged is maintained at a minimum, but the danger of detector-object collision is minimized and the necessity for orbital path calibration to preserve precision of detector movement and distance is eliminated.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: February 26, 2008
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Douglas Jay Wagenaar, Grant Albert, Alexander Hans Vija, Darrell Dennis Burckhardt, Jinhun Joung
  • Patent number: 7242003
    Abstract: An inverse collimator detector for nuclear medicine imaging applications is provided. The inverse collimator detector includes an inverse collimator wherein high density, high atomic number collimator material is placed in the location where the conventional collimator has no material, and no material is placed where the conventional collimator has high density, high atomic number collimator material. The inverse collimator detector of the present invention allows significantly higher detection efficiency for incident photons while providing distance information and maintaining high resolution for isolated, small sources of radioactivity associated with molecular imaging agents.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: July 10, 2007
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Douglas Jay Wagenaar, Jinhun Joung
  • Publication number: 20040159793
    Abstract: A radiation detection that employs an array of carbon-based photodetectors (CBPD) to convert scintillation photons into electronic signals is disclosed. According to one embodiment, the carbon-based photodiode consists of a p-type semiconductor and an n-type semiconductor. Further, the p-type semiconductor and n-type semiconductors are a conjugated polymer and a media comprised of fullerenes respectively.
    Type: Application
    Filed: February 19, 2003
    Publication date: August 19, 2004
    Inventors: Christoph Brabec, Samir Chowdhury, John C. Engdahl, Jinhun Joung, Douglas Jay Wagenaar, Thomas von der Haar