Patents Assigned to OptoQ AB
  • Method and device for measurements in blood
    Patent number: 7420658
    Abstract: We present an optical probe arrangement that surrounds blood in a receptacle. It comprises LED's and light detector arranged to overcome the variations when the receptacle is translucent medical tubing and the like. Also, a signal processing algorithm is used to average signals from a plurality of light detectors, to further enhance results when measuring hematocrit. The invention makes it possible to add the feature of hematocrit measurement into dialysis system without major alterations to the dialysis machine or transport tubing.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: September 2, 2008
    Assignee: Optoq AB
    Inventors: Magnus Petterson, Anna Dahlström, Hans Petterson
  • Method and apparatus
    Patent number: 6611320
    Abstract: The present invention relates to a method for detecting blood characteristics including hemoglobin in a fluid medium using both transmission and reflection of a light beam which forms a quotient.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: August 26, 2003
    Assignee: OptoQ AB
    Inventors: Lars-Göran Lindberg, Gunnar Enlund, Magnus Vegfors