Patents by Inventor John R. Buysman

John R. Buysman 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).

  • Methods and apparatus for reducing deleterious effects of x-ray radiation upon implantable medical device circuitry
    Patent number: 9205182
    Abstract: According to the invention methods and structures for determining whether impingement of x-ray radiation upon potentially vulnerable discrete components, circuits and/or circuit pathways of an implantable medical device (IMD) causes modifications or damage thereto. The invention includes structures for deflecting impingement of x-ray radiation from said potentially vulnerable components, circuits and/or circuit pathways. The x-ray radiation can be generated by various imaging modalities or unknown sources. Myriad IMDs can utilize the teaching of the present invention, including for example, a pacemaker, a drug delivery pump, a nerve stimulation device, a muscle stimulation device, an implantable cardioverter-defibrillator, a subcutaneous defibrillator, a deep brain stimulator or the like.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: December 8, 2015
    Assignee: Medtronic, Inc.
    Inventors: Wesley J. Clement, Hiroshi Fujimoto, Jeffrey D. Wilkinson, John R. Buysman, Girard B. Borgerding
  • Methods and apparatus for reducing spurious signals in implantable medical devices caused by x-ray radiation
    Patent number: 8706222
    Abstract: An implantable medical device (IMD) includes a detector for detecting the presence of x-ray radiation, where the presence of x-ray radiation is detected in response to the strength of the x-ray radiation exceeding a first threshold. In one embodiment, the IMD includes a processor for adjusting a cardiac stimulation rate IMD in response to determining that the strength of the detected x-ray radiation exceeds a second threshold. The second pre-selected x-ray radiation threshold is greater than the first pre-selected x-ray radiation threshold. In another embodiment, the implantable device includes a detector for detecting the presence of any amount x-ray radiation and a processor for adjusting a stimulation rate provided by the IMD in response to detected x-ray radiation to reduce the chance of over-sampling artifacts or inappropriate therapy delivery.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: April 22, 2014
    Assignee: Medtronic, Inc.
    Inventors: Wesley J. Clement, Hiron N. Fujimoto, Jeffrey D. Wilkinson, John R. Buysman, Girard B. Borgerding
  • METHODS AND APPARATUS FOR REDUCING SPURIOUS SIGNALS IN IMPLANTABLE MEDICAL DEVICES CAUSED BY X-RAY RADIATION
    Publication number: 20100204743
    Abstract: An implantable medical device (IMD) includes a detector for detecting the presence of x-ray radiation, where the presence of x-ray radiation is detected in response to the strength of the x-ray radiation exceeding a first threshold. In one embodiment, the IMD includes a processor for adjusting a cardiac stimulation rate IMD in response to determining that the strength of the detected x-ray radiation exceeds a second threshold. The second pre-selected x-ray radiation threshold is greater than the first pre-selected x-ray radiation threshold. In another embodiment, the implantable device includes a detector for detecting the presence of any amount x-ray radiation and a processor for adjusting a stimulation rate provided by the IMD in response to detected x-ray radiation to reduce the chance of over-sampling artifacts or inappropriate therapy delivery.
    Type: Application
    Filed: April 13, 2010
    Publication date: August 12, 2010
    Applicant: Medtronic, Inc.
    Inventors: Wesley J. Clement, Hiroshi Fujimoto, Jeffrey D. Wilkinson, John R. Buysman, Girard B. Borgerding
  • Methods and apparatus for reducing spurious signals in implantable medical devices caused by x-ray radiation
    Patent number: 7697988
    Abstract: An implantable medical device (IMD) includes a detector for detecting the presence of x-ray radiation, where the presence of x-ray radiation is detected in response to the strength of the x-ray radiation exceeding a first threshold. In one embodiment, the IMD includes a processor for adjusting a cardiac stimulation rate IMD in response to determining that the strength of the detected x-ray radiation exceeds a second threshold. The second pre-selected x-ray radiation threshold is greater than the first pre-selected x-ray radiation threshold. In another embodiment, the implantable device includes a detector for detecting the presence of any amount x-ray radiation and a processor for adjusting a stimulation rate provided by the IMD in response to detected x-ray radiation to reduce the chance of over-sampling artifacts or inappropriate therapy delivery.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: April 13, 2010
    Assignee: Medtronic, Inc.
    Inventors: Wesley J. Clement, Hiroshi Fujimoto, Jeffrey D. Wilkinson, John R. Buysman, Girard B. Borgerding, Jean Borgerding, legal representative