Patents by Inventor Kjell B. Westerlund

Kjell B. Westerlund 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).

  • Measuring device for checking radiation fields from treatment machines for radiotherapy
    Patent number: 4988866
    Abstract: A measuring device for checking of radiation fields from treatment machines for radiotherapy, comprising a measuring block (11) containing radiation detectors (1-10) arranged under a cover plate (13) provided with field marking lines (14) and energy filter (16), said detectors being connected to a readout unit for signal processing and presentation of measurement values, the arrangement of the radiation detectors in the block and the signal processing in the readout unit being such that the dose monitor calibration, the homogeneity of the radiation field, the geometrical correspondence of the radiation field and the light field, and the radiation energy can be checked simultaneously in one single irradiation of the measuring block and subsequent reading of the measurement results.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: January 29, 1991
    Inventor: Kjell B. Westerlund
  • Treatment couch top
    Patent number: D264874
    Type: Grant
    Filed: August 24, 1979
    Date of Patent: June 8, 1982
    Assignee: Instrument AB Therados
    Inventors: Nils E. Augustsson, Kjell B. Westerlund, Kay W. Stahl