Patents by Inventor Anna Dahlström

Anna Dahlström 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).

  • 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