Patents by Inventor Lars Mandal

Lars Mandal 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).

  • Bi-ventricular heart stimulating device, system and method
    Patent number: 7215996
    Abstract: In an implantable heart stimulating device, system and method, electrical stimulation pulses are delivered to first and second ventricles of a heart with a variable time interval therebetween, and signals are sensed at two different positions in the heart, from which an impedance value is derived. A minimum value and a maximum value of the impedance value are determined during a heart cycle, and a relationship between the minimum and maximum values also is determined. The time interval is varied and the relationship is monitored over a number of heart cycles. The time interval is set so that the relationship satisfies a predetermined requirement.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: May 8, 2007
    Assignee: St. Jude Medical AB
    Inventors: Kjell Norén, Karin Ljungström, Sven Kalling, Lars Mandal, Anders Björling
  • Implantable heart stimulating device, a system including such a device and a manner of using the system
    Publication number: 20050125042
    Abstract: In an implantable heart stimulating device, system and method, electrical stimulation pulses are delivered to first and second ventricles of a heart with a variable time interval therebetween, and signals are sensed at two different positions in the heart, from which an impedance value is derived. A minimum value and a maximum value of the impedance value are determined during a heart cycle, and a relationship between the minimum and maximum values also is determined. The time interval is varied and the relationship is monitored over a number of heart cycles. The time interval is set so that the relationship satisfies a predetermined requirement.
    Type: Application
    Filed: October 4, 2002
    Publication date: June 9, 2005
    Inventors: Kjell Noren, Karin Ljungstrom, Sven Kalling, Lars Mandal, Anders Bjorling