Patents by Inventor Harm H. Van Bolhuis

Harm H. Van Bolhuis 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).

  • Identification of premature atrial contractions that trigger arrhythmia
    Patent number: 7734346
    Abstract: In general, the invention is directed to techniques for delivery of pacing in response to a premature atrial contraction (PAC) to prevent atrial arrhythmia, i.e., delivery of post-PAC pacing pulses. The techniques may involve monitoring the success rate of prior post-PAC pacing sequences, and adjusting the number of post-PAC pacing pulses delivered subsequent post-PAC pacing sequences based on a success rate. In addition, the techniques may involve adjusting the post-PAC pacing interval based on the success rate.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: June 8, 2010
    Assignee: Medtronic, Inc.
    Inventors: Harm H. Van Bolhuis, Willem Stegnik, Henk Westendorp
  • Identification of premature atrial contractions that trigger arrhythmia
    Publication number: 20040215273
    Abstract: In general, the invention is directed to techniques for delivery of pacing in response to a premature atrial contraction (PAC) to prevent atrial arrhythmia, i.e., delivery of post-PAC pacing pulses. The techniques may involve monitoring the success rate of prior post-PAC pacing sequences, and adjusting the number of post-PAC pacing pulses delivered subsequent post-PAC pacing sequences based on a success rate. In addition, the techniques may involve adjusting the post-PAC pacing interval based on the success rate.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 28, 2004
    Inventors: Harm H. Van Bolhuis, Willem Stegink, Henk Westendorp
  • Method and system for stimulating a mammalian heart
    Patent number: 6442427
    Abstract: A method for instantaneously stimulating a mammalian heart is provided. The mammalian heart includes a first atrium and a second atrium. A commencement signal is received. At least one additional signal is received. A plurality of intervals corresponding to the time between two successive signals is measured. An average interval is calculated. One of the plurality of intervals is compared to the average interval. Finally, a contraction signal is instantly transmitted to the second atrium when a difference between the average interval and one of the plurality of intervals is greater than a predetermined time period, instantaneously transmitting a contraction signal to the second atrium.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: August 27, 2002
    Assignee: Medtronic, Inc.
    Inventors: Willem Boute, Harm H. Van Bolhuis