Patents by Inventor Jay Snell

Jay Snell 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: 7756572
    Abstract: Techniques are described for efficiently detecting and distinguishing among cardiac ischemia, hypoglycemia or hyperglycemia based on intracardiac electrogram (IEGM) signals. In one example, a preliminary indication of an episode of cardiac ischemia is detected based on shifts in ST segment elevation within the IEGM. In response, the implanted device then records additional IEGM data for transmission to an external system. The external system analyzes the additional IEGM data to confirm the detection of cardiac ischemia using a more sophisticated analysis procedure exploiting additional detection parameters. In particular, the external system uses detection parameters capable of distinguishing hypoglycemia, hyperglycemia and hyperkalemia from cardiac ischemia, such as QTmax and QTend intervals. Alternatively, the more sophisticated analysis procedure may be performed by the device itself, if it is so equipped. Other examples described herein pertain instead to the detection of atrial fibrillation.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: July 13, 2010
    Assignee: Pacesetter, Inc.
    Inventors: Mohssen Fard, Xiaoyi Min, Peter Boileau, Jong Gill, Bing Zhu, Jay Snell, Laleh Jalali, Josh Reiss, Gene Bornzin
  • Patent number: 7725171
    Abstract: A method and system are provided for tracking ST shift data. The system includes an implantable medical device having an input configured to receive cardiac signals. Each cardiac signal has an associated heart rate and includes a segment of interest. The implantable medical device further includes a processor configured to determine segment variations of the segment of interest in the cardiac signals. The processor determines a heart rate associated with each of the segment variations with each heart rate falling within a corresponding heart rate range. The implantable medical device also includes a memory configured to store a group of histograms for a corresponding group of heart rate ranges. The histograms store distributions for the segment variations within corresponding heart rate ranges.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: May 25, 2010
    Assignee: Pacesetter, Inc.
    Inventors: Bing Zhu, Jay Snell, Laleh Jalali, Katie Hoberman, Elizabeth Bacon
  • Publication number: 20100114207
    Abstract: Exemplary systems, devices, and methods pertaining to cardiac related therapy and particularly to interferential cardiac preconditioning and depolarization are described. A cardiac arrhythmia is detected from electrogram data sensed from a patient's heart and a region of the heart affected by the cardiac arrhythmia is determined. The affected region is the interferentially energized by multiple cycles of two concurrently delivered alternating currents which are offset in frequency.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 6, 2010
    Applicant: PACESETTER, INC.
    Inventors: Jay Snell, Mary Elizabeth Bush
  • Publication number: 20100069768
    Abstract: An exemplary method includes receiving a signal from an intrathoracic vibration sensor, analyzing the signal for vibration associated with deceleration of blood flow into the left ventricle, based at least in part on the analyzing, deciding whether to call for adjustment to one or more parameters of a bi-ventricular pacing therapy. Other exemplary methods, devices, systems, etc., are also disclosed.
    Type: Application
    Filed: September 16, 2008
    Publication date: March 18, 2010
    Applicant: PACESETTER, INC.
    Inventors: Xiaoyi Min, Gene A. Bornzin, Jay Snell, Josh Reiss
  • Patent number: 7647104
    Abstract: A method and apparatus for analyzing IEGM waveforms is disclosed. The method includes generating a long term ensemble average of a plurality of baseline IEGM waveforms and generating a short term ensemble average of at least a portion of the plurality of baseline IEGM waveforms. The method further includes determining a short term absolute point value as a function of the absolute value of the difference of the amplitude of the short term ensemble average and a test IEGM waveform and a long term absolute point value as a function of the difference of the amplitude of the long term ensemble average and the test waveform at a plurality of sample points. The disclosed method further includes detecting ischemia if the difference between the short term absolute point value and the long term absolute point value is greater than an ischemia detection threshold.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: January 12, 2010
    Assignee: Pacesetter, Inc.
    Inventors: Jay Snell, Jeffery D. Snell