Patents by Inventor Anna-Karin Alm

Anna-Karin Alm 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 implantable medical device (IMD) for monitoring permeability status of cell membranes
    Patent number: 8750979
    Abstract: An implantable medical device comprises a signal generator for generating a current signal having a frequency in a frequency window slightly less than the ?-dispersion frequency of a tissue and applying the signal over the tissue. A signal measurer measures the resulting voltage signal and an impedance parameter is calculated from the applied and measured signal by a parameter determiner. A status monitor monitors the permeability status of cell membranes in the tissue based on this impedance parameter.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: June 10, 2014
    Assignee: St. Jude Medical, AB
    Inventors: Andreas Blomqvist, Anna-Karin Alm, Jörgen Edvinsson, Kjell Norèn, Christopher Graae
  • METHOD AND IMPLANTABLE MEDICAL DEVICE (IMD) FOR MONITORING PERMEABILITY STATUS OF CELL MEMBRANES
    Publication number: 20100331719
    Abstract: An implantable medical device comprises a signal generator for generating a current signal having a frequency in a frequency window slightly less than the ?-dispersion frequency of a tissue and applying the signal over the tissue. A signal measurer measures the resulting voltage signal and an impedance parameter is calculated from the applied and measured signal by a parameter determiner. A status monitor monitors the permeability status of cell membranes in the tissue based on this impedance parameter.
    Type: Application
    Filed: January 29, 2008
    Publication date: December 30, 2010
    Inventors: Andreas Blomqvist, Anna-Karin Alm, Jörgen Edvinsson, Kjell Norèn, Christopher Graae