Patents by Inventor Rick Sanghera

Rick Sanghera 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 devices for accurately classifying cardiac activity
    Patent number: 9265432
    Abstract: Methods, systems, and devices for signal analysis in an implanted cardiac monitoring and treatment device such as an implantable cardioverter defibrillator. In some examples, captured data including detected events is analyzed to identify likely overdetection of cardiac events. In some illustrative examples, when overdetection is identified, data may be modified to correct for overdetection, to reduce the impact of overdetection, or to ignore overdetected data. Several examples emphasize the use of morphology analysis using correlation to static templates and/or inter-event correlation analysis.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: February 23, 2016
    Assignee: CAMERON HEALTH, INC.
    Inventors: Jay A. Warren, Rick Sanghera, Venugopal Allavatam, Surekha Palreddy
  • METHODS AND DEVICES IMPLEMENTING DUAL CRITERIA FOR ARRHYTHMIA DETECTION
    Publication number: 20160001089
    Abstract: Methods and devices providing multiple criteria for use in arrhythmia identification. Based on inputs including defined rules or parameters, one of a more conservative or more aggressive set of arrhythmia identification parameters can be selected. One or the other of the selectable sets of arrhythmia identification parameters may also be adaptive or modifiable during the use of the system, for example, in response to identified nonsustained episodes, the more conservative set of arrhythmia identification parameters can be modified to become still more conservative. Such modification of arrhythmia identification criteria allows reduced time to therapy when indicated, while allowing more deliberate decisions in other circumstances.
    Type: Application
    Filed: September 11, 2015
    Publication date: January 7, 2016
    Applicant: CAMERON HEALTH, INC.
    Inventors: Venugopal Allavatam, Rick Sanghera
  • ADAPTIVE CONFIRMATION OF TREATABLE ARRHYTHMIA IN IMPLANTABLE CARDIAC STIMULUS DEVICES
    Publication number: 20150375004
    Abstract: Methods and devices for adjusting therapy delivery decisions in an implantable cardiac stimulus device by observing cardiac activity following an initial identification of a treatable condition. In some examples, cardiac activity that appears benign is quantified and a therapy confirmation threshold is adjusted according to how much apparently benign cardiac activity is seen after an initial identification of a treatable condition. In other examples, a new threshold is applied following the initial identification of treatable condition, removing historical data preceding the initial identification from subsequent therapy delivery decisions.
    Type: Application
    Filed: September 14, 2015
    Publication date: December 31, 2015
    Applicant: CAMERON HEALTH INC.
    Inventors: Jay A. Warren, Rick Sanghera, Venugopal Allavatam
  • SENSING VECTOR SELECTION IN A CARDIAC STIMULUS DEVICE WITH POSTURAL ASSESSMENT
    Publication number: 20150328470
    Abstract: Methods, implantable medical devices and systems configured to perform analysis of captured signals from implanted electrodes to identify cardiac arrhythmias. In an illustrative embodiment, signals captured from two or more sensing vectors are analyzed, where the signals are captured with a patient in at least first and second body positions. Analysis is performed to identify primary or default sensing vectors and/or templates for event detection.
    Type: Application
    Filed: July 29, 2015
    Publication date: November 19, 2015
    Applicant: CAMERON HEALTH, INC.
    Inventors: Rick Sanghera, Venugopal Allavatam
  • Robust rate calculation in an implantable cardiac stimulus or monitoring device
    Patent number: 9179853
    Abstract: Devices and methods for analyzing cardiac signal data. An illustrative method includes identifying a plurality of detected events and measuring intervals between the detected events for use in rate estimation. In the illustrative embodiment, a set of intervals is used to make the rate estimation by first discarding selected intervals from the set. The remaining intervals are then used to calculate an estimated interval, for example by averaging the remaining intervals.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: November 10, 2015
    Assignee: CAMERON HEALTH, INC.
    Inventors: Rick Sanghera, Venugopal Allavatam, Jay A. Warren, Mark R. Schroeder
  • Methods and devices for accurately classifying cardiac activity
    Patent number: 9162074
    Abstract: Methods, systems, and devices for signal analysis in an implanted cardiac monitoring and treatment device such as an implantable cardioverter defibrillator. In illustrative examples, captured data including detected events is analyzed to identify likely overdetection of cardiac events. In some illustrative examples, when overdetection is identified, data may be modified to correct for overdetection, to reduce the impact of overdetection, or to ignore overdetected data. New methods for organizing the use of morphology and rate analysis in an overall architecture for rhythm classification and cardiac signal analysis are also discussed.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: October 20, 2015
    Assignee: CAMERON HEALTH, INC.
    Inventors: Venugopal Allavatam, Surekha Palreddy, Rick Sanghera, Jay A. Warren
  • Adaptive confirmation of treatable arrhythmia in implantable cardiac stimulus devices
    Patent number: 9149637
    Abstract: Methods and devices for adjusting therapy delivery decisions in an implantable cardiac stimulus device by observing cardiac activity following an initial identification of a treatable condition. In some examples, cardiac activity that appears benign is quantified and a therapy confirmation threshold is adjusted according to how much apparently benign cardiac activity is seen after an initial identification of a treatable condition. In other examples, a new threshold is applied following the initial identification of treatable condition, removing historical data preceding the initial identification from subsequent therapy delivery decisions.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: October 6, 2015
    Assignee: CAMERON HEALTH, INC.
    Inventors: Jay A. Warren, Rick Sanghera, Venugopal Allavatam
  • Methods and devices implementing dual criteria for arrhythmia detection
    Patent number: 9149645
    Abstract: Methods and devices providing multiple criteria for use in arrhythmia identification. Based on inputs including defined rules or parameters, one of a more conservative or more aggressive set of arrhythmia identification parameters can be selected. One or the other of the selectable sets of arrhythmia identification parameters may also be adaptive or modifiable during the use of the system, for example, in response to identified nonsustained episodes, the more conservative set of arrhythmia identification parameters can be modified to become still more conservative. Such modification of arrhythmia identification criteria allows reduced time to therapy when indicated, while allowing more deliberate decisions in other circumstances.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: October 6, 2015
    Assignee: CAMERON HEALTH, INC.
    Inventors: Rick Sanghera, Venugopal Allavatam
  • Sensing vector selection in a cardiac stimulus device with postural assessment
    Patent number: 9119596
    Abstract: Methods, implantable medical devices and systems configured to perform analysis of captured signals from implanted electrodes to identify cardiac arrhythmias. In an illustrative embodiment, signals captured from two or more sensing vectors are analyzed, where the signals are captured with a patient in at least first and second body positions. Analysis is performed to identify primary or default sensing vectors and/or templates for event detection.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: September 1, 2015
    Assignee: CAMERON HEALTH, INC.
    Inventors: Rick Sanghera, Venugopal Allavatam
  • PATIENT SCREENING TOOLS FOR IMPLANTABLE CARDIAC STIMULUS SYSTEMS
    Publication number: 20150196211
    Abstract: Tools and devices are provided for determining whether a patient is well suited to receiving an implantable cardiac stimulation device by analyzing cardiac signals captured using external or cutaneous electrodes. Some of the illustrative tools include shapes for visual comparison to printed ECG strips. Kits for use of illustrative tools are also shown. Automatic devices are also disclosed which perform at least some analytical functions electronically for a user. In an example, a printed ECG strip is visually compared to a shape in order to ensure a patient is well suited to receiving a cardiac stimulation device having a particular implant location and/or cardiac signal analysis method implementation.
    Type: Application
    Filed: March 6, 2015
    Publication date: July 16, 2015
    Applicant: CAMERON HEALTH, INC.
    Inventors: Rick Sanghera, Alan F. Marcovecchio, James M. Keefe
  • Electrode spacing in a subcutaneous implantable cardiac stimulus device
    Patent number: 9079035
    Abstract: Methods and implantable cardiac stimulus devices that include leads designed to avoid post-shock afterpotentials. Some examples are directed toward lead-electrode designs that reduce the impact of an applied stimulus on sensing attributes. These examples may find particular use in systems that provide both sensing and therapy delivery from subcutaneous location.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: July 14, 2015
    Assignee: CAMERON HEALTH, INC.
    Inventors: Rick Sanghera, Eric F. King, Don E. Scheck, Abdulkader O. Sudam, Jay A. Warren
  • SENSING VECTOR SELECTION IN A CARDIAC STIMULUS DEVICE WITH POSTURAL ASSESSMENT
    Publication number: 20150182171
    Abstract: Methods, implantable medical devices and systems configured to perform analysis of captured signals from implanted electrodes to identify cardiac arrhythmias. In an illustrative embodiment, signals captured from two or more sensing vectors are analyzed, where the signals are captured with a patient in at least first and second body positions. Analysis is performed to identify primary or default sensing vectors and/or templates for event detection.
    Type: Application
    Filed: January 21, 2015
    Publication date: July 2, 2015
    Inventors: Rick Sanghera, Venugopal Allavatam
  • METHODS AND DEVICES FOR ACCURATELY CLASSIFYING CARDIAC ACTIVITY
    Publication number: 20150088214
    Abstract: Methods, systems, and devices for signal analysis in an implanted cardiac monitoring and treatment device such as an implantable cardioverter defibrillator. In illustrative examples, captured data including detected events is analyzed to identify likely overdetection of cardiac events. In some illustrative examples, when overdetection is identified, data may be modified to correct for overdetection, to reduce the impact of overdetection, or to ignore overdetected data. New methods for organizing the use of morphology and rate analysis in an overall architecture for rhythm classification and cardiac signal analysis are also discussed.
    Type: Application
    Filed: November 24, 2014
    Publication date: March 26, 2015
    Inventors: Venugopal Allavatam, Surekha Palreddy, Rick Sanghera, Jay A. Warren
  • Implantable cardiac devices and methods using an x/y counter
    Patent number: 8965530
    Abstract: Methods, implantable medical devices and systems configured to perform analysis of captured signals from implanted electrodes to identify cardiac arrhythmias. In an illustrative embodiment, signals captured from two or more sensing vectors are analyzed, where the signals are captured with a patient in at least first and second body positions. Analysis is performed to identify primary or default sensing vectors and/or templates for event detection.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: February 24, 2015
    Assignee: Cameron Health, Inc.
    Inventors: Rick Sanghera, Venugopal Allavatam
  • Adaptive waveform appraisal in an implantable cardiac system
    Patent number: 8965491
    Abstract: Methods and implantable devices for cardiac signal analysis. The methods and devices make use of waveform appraisal techniques to distinguish event detections into categories for suspect events and waveform appraisal passing events. When adjustments are made to the data entering analysis for waveform appraisal, the waveform appraisal thresholds applied are modified as well. For example, when the data analysis window for waveform appraisal changes in length, a waveform appraisal threshold is modified. Other changes, including changes in sensing characteristics with which waveform appraisal operates may also result in changes to the waveform appraisal threshold including changes in gain, sensing vector, activation of other devices, implantee posture and other examples which are explained.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: February 24, 2015
    Assignee: Cameron Health, Inc.
    Inventors: Venugopal Allavatam, Rick Sanghera, Jay A. Warren
  • ROBUST RATE CALCULATION IN AN IMPLANTABLE CARDIAC STIMULUS OR MONITORING DEVICE
    Publication number: 20150045682
    Abstract: Devices and methods for analyzing cardiac signal data. An illustrative method includes identifying a plurality of detected events and measuring intervals between the detected events for use in rate estimation. In the illustrative embodiment, a set of intervals is used to make the rate estimation by first discarding selected intervals from the set. The remaining intervals are then used to calculate an estimated interval, for example by averaging the remaining intervals.
    Type: Application
    Filed: October 28, 2014
    Publication date: February 12, 2015
    Inventors: Rick Sanghera, Venugopal Allavatam, Jay A. Warren, Mark R. Schroeder
  • Implantable cardiac systems with baseline correction in response to noise detection
    Patent number: 8954136
    Abstract: Implantable cardiac devices and methods of their use. A method of operation in an implantable cardiac device may include steps for characterizing detected events as noise or not noise, identifying a set of consecutive noise events or a threshold quantity of noise events in a set period of time and declaring a noisy series to have occurred. In response to the declaration of a noisy series, the method initiates a baseline correction algorithm. Devices for performing such methods are also disclosed.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: February 10, 2015
    Assignee: Cameron Health, Inc.
    Inventors: Paul Freer, Rick Sanghera, Venugopal Allavatam
  • Methods and devices for accurately classifying cardiac activity
    Patent number: 8929977
    Abstract: Methods, systems, and devices for signal analysis in an implanted cardiac monitoring and treatment device such as an implantable cardioverter defibrillator. In illustrative examples, captured data including detected events is analyzed to identify likely overdetection of cardiac events. In some illustrative examples, when overdetection is identified, data may be modified to correct for overdetection, to reduce the impact of overdetection, or to ignore overdetected data. New methods for organizing the use of morphology and rate analysis in an overall architecture for rhythm classification and cardiac signal analysis are also discussed.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: January 6, 2015
    Assignee: Cameron Health, Inc.
    Inventors: Venugopal Allavatam, Surekha Palreddy, Rick Sanghera, Jay A. Warren
  • Robust rate calculation in an implantable cardiac stimulus or monitoring device
    Patent number: 8909331
    Abstract: Devices and methods for analyzing cardiac signal data. An illustrative method includes identifying a plurality of detected events and measuring intervals between the detected events for use in rate estimation. In the illustrative embodiment, a set of intervals is used to make the rate estimation by first discarding selected intervals from the set. The remaining intervals are then used to calculate an estimated interval, for example by averaging the remaining intervals.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: December 9, 2014
    Assignee: Cameron Health, Inc.
    Inventors: Rick Sanghera, Venugopal Allavatam, Jay A. Warren, Mark R. Schroeder
  • SENSING VECTOR SELECTION IN A CARDIAC STIMULUS DEVICE WITH POSTURAL ASSESSMENT
    Publication number: 20140350631
    Abstract: Methods, implantable medical devices and systems configured to perform analysis of captured signals from implanted electrodes to identify cardiac arrhythmias. In an illustrative embodiment, signals captured from two or more sensing vectors are analyzed, where the signals are captured with a patient in at least first and second body positions. Analysis is performed to identify primary or default sensing vectors and/or templates for event detection.
    Type: Application
    Filed: June 18, 2014
    Publication date: November 27, 2014
    Inventors: Rick Sanghera, Venugopal Allavatam