Patents by Inventor Jorgen Edvinsson

Jorgen Edvinsson 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).

  • 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
  • Publication number: 20130013011
    Abstract: A pulse generating implantable medical device comprises a power source , a control unit, a plurality of switching units, a timing unit, a pulse generating unit adapted to generate one or more stimulation pulses to be applied to human or animal tissue via one or more stimulation electrodes, and a coupling capacitor in series with each stimulation electrode. A stimulation pulse is adapted to be applied during a stimulation pulse timing cycle that includes a stimulation phase and a recharge phase, and that the timing of a stimulation pulse timing cycle is controlled by the control unit via the timing unit and the switching units. The implantable medical device further comprises an energy storage unit and that, during the recharge phase, one or more of the switching units is adapted to establish electrical connection between the one or many stimulation electrodes and the energy storage unit in order to collect and store energy from applied stimulation pulses.
    Type: Application
    Filed: March 31, 2010
    Publication date: January 10, 2013
    Applicant: ST. JUDE MEDICAL AB
    Inventors: Jorgen Edvinsson, Allan Olson, Marie Herstedt, Therese Danielsson, Ting Jun Lo
  • Publication number: 20120010679
    Abstract: In an implantable medical device, in particular an implantable heart-stimulation device, and a method for operating an implantable heart-stimulation device and a heart-stimulation system, stimulation pulses are delivered via a number of stimulation channels to selected sites on or about a patient's heart via electrodes, and wherein coupling capacitors included in the stimulation channels are subsequently discharged through a sequence of temporally non-overlapping partial discharges of the respective coupling capacitors. By this configuration, the risk of charge neutrality of a stimulation channel not being maintained at the end of a stimulation sequence, comprising the delivery of stimulation pulses via stimulation channels, is reduced or eliminated.
    Type: Application
    Filed: March 31, 2009
    Publication date: January 12, 2012
    Inventor: Jörgen Edvinsson
  • 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
  • Patent number: 7308311
    Abstract: A programmer and implantable stimulation device system with the implantable device and programmer in telemetric communication with each other wherein the implantable device internally monitors a plurality of physiological parameters and telemeters a plurality of those parameters to the programmer in at least a quasi-real-time manner such that the programmer can display waveforms corresponding to the internally monitored parameters in at least a quasi-real-time manner. The physiological parameters can include measurements of cardiac function, metabolic need, and patient orientation. In some aspects, the internally monitored parameters are provided continuously in a real-time manner and, in other aspects, the parameters are processed to a limited extent and provided as a derived parameter, such as an average, and/or as frames of data.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: December 11, 2007
    Assignee: Pacesetter, Inc.
    Inventors: Chris Sorensen, Euljoon Park, Jorgen Edvinsson
  • Publication number: 20040102814
    Abstract: A programmer and implantable stimulation device system with the implantable device and programmer in telemetric communication with each other wherein the implantable device internally monitors a plurality of physiological parameters and telemeters a plurality of those parameters to the programmer in at least a quasi-real-time manner such that the programmer can display waveforms corresponding to the internally monitored parameters in at least a quasi-real-time manner. The physiological parameters can include measurements of cardiac function, metabolic need, and patient orientation. In some aspects, the internally monitored parameters are provided continuously in a real-time manner and, in other aspects, the parameters are processed to a limited extent and provided as a derived parameter, such as an average, and/or as frames of data.
    Type: Application
    Filed: November 22, 2002
    Publication date: May 27, 2004
    Inventors: Chris Sorensen, Euljoon Park, Jorgen Edvinsson