Patents by Inventor Jan-Ulco Kluiwstra

Jan-Ulco Kluiwstra 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).

  • Ultrasound transducer fault measurement method and system
    Patent number: 7481577
    Abstract: Ultrasound transducer temperatures are measured in response to a temperature dependent property of the ultrasound transducer. The temperature is measured without addition of new electronics or hardware retrofits of the transducer. By implementing software and/or hardware on the ultrasound system rather than the transducer, the temperature is measured in order to provide a level of fault protection. The upgraded or new ultrasound system uses either old or new transducers while still providing temperature measurement. For example, the temperature of the lens or window is measured as a function of changes in attenuation or acoustic velocity. The receive beamformer already implemented on many ultrasound systems is used to measure a temperature dependent property of the lens or window. As another example, the dielectric constant or capacitance of one or more transducer elements is measured using additional hardware in the ultrasound system.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: January 27, 2009
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Bhaskar Ramamurthy, John Douglas Marshall, Jan-Ulco Kluiwstra
  • Ultrasound transducer fault measurement method and system
    Publication number: 20070081576
    Abstract: Ultrasound transducer temperatures are measured in response to a temperature dependent property of the ultrasound transducer. The temperature is measured without addition of new electronics or hardware retrofits of the transducer. By implementing software and/or hardware on the ultrasound system rather than the transducer, the temperature is measured in order to provide a level of fault protection. The upgraded or new ultrasound system uses either old or new transducers while still providing temperature measurement. For example, the temperature of the lens or window is measured as a function of changes in attenuation or acoustic velocity. The receive beamformer already implemented on many ultrasound systems is used to measure a temperature dependent property of the lens or window. As another example, the dielectric constant or capacitance of one or more transducer elements is measured using additional hardware in the ultrasound system.
    Type: Application
    Filed: December 4, 2006
    Publication date: April 12, 2007
    Inventors: Bhaskar Ramamurthy, John Marshall, Jan-Ulco Kluiwstra
  • Ultrasound transducer fault measurement method and system
    Patent number: 7156551
    Abstract: Ultrasound transducer temperatures are measured in response to a temperature dependent property of the ultrasound transducer. The temperature is measured without addition of new electronics or hardware retrofits of the transducer. By implementing software and/or hardware on the ultrasound system rather than the transducer, the temperature is measured in order to provide a level of fault protection. The upgraded or new ultrasound system uses either old or new transducers while still providing temperature measurement. For example, the temperature of the lens or window is measured as a function of changes in attenuation or acoustic velocity. The receive beamformer already implemented on many ultrasound systems is used to measure a temperature dependent property of the lens or window. As another example, the dielectric constant or capacitance of one or more transducer elements is measured using additional hardware in the ultrasound system.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: January 2, 2007
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Bhaskar Ramamurthy, John Douglas Marshall, Sevig Ayter, Jan-Ulco Kluiwstra, Jerry D. Hopple
  • Ultrasound transducer fault measurement method and system
    Publication number: 20040258127
    Abstract: Ultrasound transducer temperatures are measured in response to a temperature dependent property of the ultrasound transducer. The temperature is measured without addition of new electronics or hardware retrofits of the transducer. By implementing software and/or hardware on the ultrasound system rather than the transducer, the temperature is measured in order to provide a level of fault protection. The upgraded or new ultrasound system uses either old or new transducers while still providing temperature measurement. For example, the temperature of the lens or window is measured as a function of changes in attenuation or acoustic velocity. The receive beamformer already implemented on many ultrasound systems is used to measure a temperature dependent property of the lens or window. As another example, the dielectric constant or capacitance of one or more transducer elements is measured using additional hardware in the ultrasound system.
    Type: Application
    Filed: October 6, 2003
    Publication date: December 23, 2004
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Bhaskar Ramamurthy, John Douglas Marshall, Sevig Ayter, Jan-Ulco Kluiwstra, Jerry D. Hopple
  • Ultrasound image guided acetabular implant orientation during total hip replacement
    Patent number: 6607487
    Abstract: A system for assisting in precise location of the acetabular implant during total hip replacement. The system uses ultrasound imaging for guiding the placement and orientation of the implant.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: August 19, 2003
    Assignee: The Regents of the University of California
    Inventors: John Chang, Waleed Haddad, Jan-Ulco Kluiwstra, Dennis Matthews, Kenneth Trauner
  • Ultrasound image guided acetabular implant orientation during total hip replacement
    Publication number: 20020099288
    Abstract: A system for assisting in precise location of the acetabular implant during total hip replacement. The system uses ultrasound imaging for guiding the placement and orientation of the implant.
    Type: Application
    Filed: January 23, 2001
    Publication date: July 25, 2002
    Applicant: The Regents of the University of California
    Inventors: John Chang, Waleed Haddad, Jan-Ulco Kluiwstra, Dennis Matthews, Kenneth Trauner