Patents by Inventor Klaus Stevens

Klaus Stevens 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).

  • Blood conditioning device
    Patent number: 7108785
    Abstract: A blood conditioning device having a housing with a helical blood acceleration section which includes a helical flow path for impressing centrifugal forces on the entrained bubbles in the blood to concentrate them towards the center of the flow path, a bubble pick off tube aligned with the centerline of the acceleration section which collects and recirculates the bubbles to the cardiotomy reservoir upstream of the device during operation, and a blood filtration section to intercept the flow of particles in the blood.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: September 19, 2006
    Assignee: Convergenza Handelsanstalt
    Inventors: Hans Plechinger, Hans-Jürgen Tiedtke, Klaus Stevens