Patents Assigned to Cameron Health, Inc.
  • Lead fastener
    Patent number: 8660668
    Abstract: Lead electrode assemblies for use with an implantable cardioverter-defibrillator subcutaneously implanted outside the ribcage between the third and twelfth ribs comprising the electrode. Example assemblies include appendages of various types for use during implantation including fins, pinholes, loops, tubes, openings and other means for attachment to an implant tool. Several embodiments include first and second faces on the electrodes such that a first face is configured to be implanted facing the ribcage of the patient and the second face has the appendage.
    Type: Grant
    Filed: October 6, 2012
    Date of Patent: February 25, 2014
    Assignee: Cameron Health, Inc.
    Inventors: Gust H. Bardy, Riccardo Cappato, William J. Rissmann, Gary H. Sanders
  • METHOD OF IMPLANTING AND USING A SUBCUTANEOUS DEFIBRILLATOR
    Publication number: 20140052205
    Abstract: A subcutaneous implantable cardioverter-defibrillator is disclosed which has an electrically active canister which houses a source of electrical energy, a capacitor, and operational circuitry that senses the presence of potentially fatal heart rhythms. At least one subcutaneous electrode that serves as the opposite electrode from the canister is attached to the canister via a lead system. Cardioversion-defibrillation energy is delivered when the operational circuitry senses a potentially fatal heart rhythm. There are no transvenous, intracardiac, or epicardial electrodes. A method of subcutaneously implanting the cardioverter-defibrillator is also disclosed as well as a kit for conducting the method.
    Type: Application
    Filed: October 25, 2013
    Publication date: February 20, 2014
    Applicant: Cameron Health, Inc.
    Inventors: Gust H. Bardy, Riccardo Cappato
  • METHODS AND DEVICES FOR ACCURATELY CLASSIFYING CARDIAC ACTIVITY
    Publication number: 20140046396
    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: Application
    Filed: October 21, 2013
    Publication date: February 13, 2014
    Applicant: Cameron Health, Inc.
    Inventors: Jay A. Warren, Rick Sanghera, Venugopal Allavatam, Surekha Palreddy
  • ROBUST RATE CALCULATION IN AN IMPLANTABLE CARDIAC STIMULUS OR MONITORING DEVICE
    Publication number: 20140046206
    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 18, 2013
    Publication date: February 13, 2014
    Applicant: Cameron Health, Inc.
    Inventors: Rick Sanghera, Venugopal Allavatam, Jay A. Warren, Mark R. Schroeder
  • METHODS AND DEVICES FOR ACCURATELY CLASSIFYING CARDIAC ACTIVITY
    Publication number: 20140046204
    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: October 18, 2013
    Publication date: February 13, 2014
    Applicant: Cameron Health, Inc.
    Inventors: Venugopal Allavatam, Surekha Palreddy, Rick Sanghera, Jay A. Warren
  • ACCURATE CARDIAC EVENT DETECTION IN AN IMPLANTABLE CARDIAC STIMULUS DEVICE
    Publication number: 20140046394
    Abstract: Methods, systems, and devices for signal analysis in an implanted cardiac monitoring and treatment device such as an implantable cardioverter defibrillator. In some illustrative examples, detected events are analyzed to identify changes in detected event amplitudes. When detected event amplitudes are dissimilar from one another, a first set of detection parameters may be invoked, and, when detected event amplitudes are similar to one another, a second set of detection parameters may be invoked. Additional methods determine whether the calculated heart rate is “high” or “low,” and then may select a third set of detection parameters for use when the calculated heart rate is high.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Applicant: Cameron Health, Inc.
    Inventors: Venugopal Allavatam, Surekha Palreddy, Rick Sanghera, Jay A. Warren
  • Subcutaneous defibrillator implantation
    Patent number: 8644926
    Abstract: A subcutaneous cardiac device includes a subcutaneous electrode and a housing coupled to the subcutaneous electrode by a lead with a lead wire. The subcutaneous electrode is adapted to be implanted in a frontal region of the patient so as to overlap a portion of the patient's heart. The subcutaneous electrode is configured for therapy delivery in combination with one or both of the housing or a second subcutaneous electrode.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: February 4, 2014
    Assignee: Cameron Health, Inc.
    Inventors: Alan H. Ostroff, Paul J. Erlinger, Gust H. Bardy
  • Method and devices for performing cardiac waveform appraisal
    Patent number: 8626285
    Abstract: Implementations of various technologies described herein are directed toward a sensing architecture for use in cardiac rhythm management devices. The sensing architecture may provide a method and means for certifying detected events by the cardiac rhythm management device. Moreover, by exploiting the enhanced capability to accurately identifying only those sensed events that are desirable, and preventing the use of events marked as suspect, the sensing architecture can better discriminate between rhythms appropriate for device therapy and those that are not.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: January 7, 2014
    Assignee: Cameron Health, Inc.
    Inventors: Surekha Palreddy, Jay A. Warren, James W. Phillips
  • Methods and devices for accurately classifying cardiac activity
    Patent number: 8626280
    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: March 30, 2012
    Date of Patent: January 7, 2014
    Assignee: Cameron Health, Inc.
    Inventors: Venugopal Allavatam, Surekha Palreddy, Rick Sanghera, Jay A. Warren
  • Methods and devices for accurately classifying cardiac activity
    Patent number: 8600489
    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: March 30, 2012
    Date of Patent: December 3, 2013
    Assignee: Cameron Health, Inc.
    Inventors: Jay A. Warren, Rick Sanghera, Venugopal Allavatam, Surekha Palreddy
  • Multiple battery configurations in an implantable medical device
    Patent number: 8588913
    Abstract: Implantable medical device power circuits are disclosed. Multiple batteries may be provided, along with a number of switches, enabling a plurality of battery and power circuit configurations to be defined. Configurations of the power circuit may be changed in response to changes in battery status as the batteries are used and/or near end-of-life. Configurations of the power circuit may also be performed in response to changes in device operation. Methods associated with operating such circuits and implantable medical devices are also disclosed.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: November 19, 2013
    Assignee: Cameron Health, Inc.
    Inventors: David M. Signoff, Marcus F. Julian
  • Robust rate calculation in an implantable cardiac stimulus or monitoring device
    Patent number: 8588895
    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: April 19, 2012
    Date of Patent: November 19, 2013
    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: 8588896
    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: September 7, 2012
    Date of Patent: November 19, 2013
    Assignee: Cameron Health, Inc.
    Inventors: Venugopal Allavatam, Surekha Palreddy, Rick Sanghera, Jay A. Warren
  • Method of implanting and using a subcutaneous defibrillator
    Patent number: 8577454
    Abstract: A subcutaneous implantable cardioverter-defibrillator is disclosed which has an electrically active canister which houses a source of electrical energy, a capacitor, and operational circuitry that senses the presence of potentially fatal heart rhythms. At least one subcutaneous electrode that serves as the opposite electrode from the canister is attached to the canister via a lead system. Cardioversion-defibrillation energy is delivered when the operational circuitry senses a potentially fatal heart rhythm. There are no transvenous, intracardiac, or epicardial electrodes. A method of subcutaneously implanting the cardioverter-defibrillator is also disclosed as well as a kit for conducting the method.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: November 5, 2013
    Assignee: Cameron Health, Inc.
    Inventors: Gust H. Bardy, Riccardo Cappato
  • Accurate cardiac event detection in an implantable cardiac stimulus device
    Patent number: 8565878
    Abstract: Methods, systems, and devices for signal analysis in an implanted cardiac monitoring and treatment device such as an implantable cardioverter defibrillator. In some illustrative examples, detected events are analyzed to identify changes in detected event amplitudes. When detected event amplitudes are dissimilar from one another, a first set of detection parameters may be invoked, and, when detected event amplitudes are similar to one another, a second set of detection parameters may be invoked. Additional methods determine whether the calculated heart rate is “high” or “low,” and then may select a third set of detection parameters for use when the calculated heart rate is high.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: October 22, 2013
    Assignee: Cameron Health, Inc.
    Inventors: Venugopal Allavatam, Surekha Palreddy, Rick Sanghera, Jay A. Warren
  • SUBCUTANEOUS IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR PLACEMENT METHODS
    Publication number: 20130261716
    Abstract: A subcutaneous cardiac device includes two electrodes and a stimulator that generates a pulse to the electrodes. The electrodes are implanted between the skin and the rib cage of the patient and are adapted to generate an electric field corresponding to the pulse, the electric field having a substantially uniform voltage gradient as it passes through the heart. The shapes, sizes, positions and structures of the electrodes are selected to optimize the voltage gradient of the electric field, and to minimize the energy dissipated by the electric field outside the heart. More specifically, the electrodes have contact surfaces that contact the patient tissues, said contact surfaces having a total contact area of less than 100 cm2. In one embodiment, one or both electrodes are physically separated from the stimulator. In another embodiment, a unitary housing holds the both electrodes and the stimulator.
    Type: Application
    Filed: May 6, 2013
    Publication date: October 3, 2013
    Applicant: Cameron Health, Inc.
    Inventors: Gust H. Bardy, Riccardo Cappato, Alan H. Ostroff, William J. Rissmann, Gary H. Sanders
  • Dynamically filtered beat detection in an implantable cardiac device
    Patent number: 8548573
    Abstract: Methods and implantable devices that detect cardiac events using dynamic filtering. Illustratively, default filtering is performed except for a predefined period of time following detection of cardiac events, during which post-beat filtering is performed instead. The example post-beat filtering applies a narrower pass-band to the signal than the default filtering in order to attenuate T-waves more greatly than the default filtering during a time period after a detected event that is expected to correspond to occurrence of T-waves.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: October 1, 2013
    Assignee: Cameron Health, Inc.
    Inventor: James M. Keefe
  • DATA MANIPULATION FOLLOWING DELIVERY OF A CARDIAC STIMULUS IN AN IMPLANTABLE CARDIAC STIMULUS DEVICE
    Publication number: 20130253601
    Abstract: Methods of cardiac rhythm analysis in an implantable cardiac stimulus device, and devices configured for such methods. In an illustrative embodiment, certain data relating to cardiac event rate or amplitude is modified following delivery of a cardiac stimulus. In another embodiment, cardiac rhythm analysis is performed using one of plural states, with the plural states using different criteria, such as a detection threshold, to detect cardiac events in a sensed signal. Following delivery of a cardiac stimulus, data is manipulated to force the analysis into one of the states, where stimulus is delivered, in the illustrative embodiment, only after a different state is invoked. Implantable devices incorporating operational circuitry for performing such methods are also included in other illustrative embodiments.
    Type: Application
    Filed: May 21, 2013
    Publication date: September 26, 2013
    Applicant: Cameron Health, Inc.
    Inventors: Surekha Palreddy, Venugopal Allavatam
  • APPARATUS AND METHOD FOR IDENTIFYING ATRIAL ARRHYTHMIA BY FAR-FIELD SENSING
    Publication number: 20130253356
    Abstract: In a subcutaneous implantable cardioverter/defibrillator, cardiac arrhythmias are detected to determine necessary therapeutic action. Cardiac signal information is sensed from far field electrodes implanted in a patient. The sensed cardiac signal information is then amplified and filtered. Parameters such as rate, QRS pulse width, cardiac QRS slew rate, amplitude and stability measures of these parameters from the filtered cardiac signal information are measured, processed and integrated to determine if the cardioverter/defibrillator needs to initiate therapeutic action.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Applicant: Cameron Health, Inc.
    Inventors: Gust H. Bardy, William J. Rissmann, Alan H. Ostroff, Paul J. Erlinger, Venugopal Allavatam
  • Electrical component behavior analysis tools
    Patent number: 8540422
    Abstract: Tools and methods for creating isolated or localized temperature changes on components in an electric circuit. By isolating temperature changes to individual components or small sets of components, the tools and methods allow greater control over the analysis of interactions within a board. This may allow clearer understanding of the effects of temperature on circuit component behavior. The tools and analysis advances analysis such as failure analysis and design testing.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: September 24, 2013
    Assignee: Cameron Health, Inc.
    Inventors: Jason J. Edwardson, Timothy A. Fonte, Eric F. King, Ross G. Baker, Jr., Toby Daniel Awender