Patents by Inventor Dave Amundson

Dave Amundson 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 apparatus for P-synchronously stimulating the heart of a patient
    Patent number: 4905696
    Abstract: An impedance measurement, used for controlling the pulse generation rate of the pacer, is obtained by placing an electrode in the ventricular portion, rather than the atrial portion, of the heart. The characteristic p-wave in the electrocardiogram is detected as a rapid inflection or notch in the impedance signal, with a stimulation pulse being generated with a time delay following detection of such a notch.
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: March 6, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventors: Dave Amundson, Asa Hedin, Kjell Noren