Patents by Inventor Ronald D. Berger
Ronald D. Berger 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).
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Patent number: 7069070Abstract: A computationally efficient method for assessing a subject's autonomic balance by measurement of heart rate variability is disclosed which is particularly suitable for implementation by an implantable medical device. Statistical surrogates are used to represent frequency components of an RR time series. A ratio of the low frequency component to the high frequency component may then be estimated to assess the subject's autonomic balance.Type: GrantFiled: May 12, 2003Date of Patent: June 27, 2006Assignee: Cardiac Pacemakers, Inc.Inventors: Gerrard M. Carlson, Ronald D. Berger
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Patent number: 6865413Abstract: Chest compressions are measured and prompted to facilitate the effective administration of CPR. A displacement detector determines a displacement indicative signal indicative of the displacement of the CPR recipient's chest toward the recipient's spine. A signaling mechanism provides chest compression indication signals directing a chest compression force being applied to the chest and a frequency of such compressions. An automated controller and an automated constricting device may be provided for applying CPR to the recipient in an automated fashion. The automated controller receives the chest compression indication signals from the signaling mechanism, and, in accordance with the chest compression indication signals, controls the force and frequency of constrictions.Type: GrantFiled: January 23, 2002Date of Patent: March 8, 2005Assignee: Revivant CorporationInventors: Henry R. Halperin, Ronald D. Berger
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Patent number: 6827695Abstract: A method of processing a raw acceleration signal, measured by an accelerometer-based compression monitor, to produce an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal is filtered during integration and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compressions.Type: GrantFiled: October 25, 2002Date of Patent: December 7, 2004Assignee: Revivant CorporationInventors: James Adam Palazzolo, Ronald D. Berger, Henry R. Halperin, Darren R. Sherman
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Publication number: 20040230241Abstract: A computationally efficient method for assessing a subject's autonomic balance by measurement of heart rate variability is disclosed which is particularly suitable for implementation by an implantable medical device. Statistical surrogates are used to represent frequency components of an RR time series. A ratio of the low frequency component to the high frequency component may then be estimated to assess the subject's autonomic balance.Type: ApplicationFiled: May 12, 2003Publication date: November 18, 2004Inventors: Gerrard M. Carlson, Ronald D. Berger
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Publication number: 20040210172Abstract: A method of processing a raw acceleration signal, measured by an accelerometer-based compression monitor, to produce an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal is filtered during integration and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compressions.Type: ApplicationFiled: May 12, 2004Publication date: October 21, 2004Applicant: Revivant CorporationInventors: James Adam Palazzolo, Ronald D. Berger, Henry R. Halperin, Darren R. Sherman
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Publication number: 20040210171Abstract: A method of processing a raw acceleration signal, measured by an accelerometer-based compression monitor, to produce an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal is filtered during integration and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compressions.Type: ApplicationFiled: May 12, 2004Publication date: October 21, 2004Applicant: Revivant CorporationInventors: James Adam Palazzolo, Ronald D. Berger, Henry R. Halperin, Darren R. Sherman
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Publication number: 20040210170Abstract: A method of processing a raw acceleration signal, measured by an accelerometer-based compression monitor, to produce an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal is filtered during integration and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compressions.Type: ApplicationFiled: May 12, 2004Publication date: October 21, 2004Applicant: Revivant CorporationInventors: James Adam Palazzolo, Ronald D. Berger, Henry R. Halperin, Darren R. Sherman
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Publication number: 20040167392Abstract: A method of performing brain therapy may include placing a subject in a main magnetic field, introducing into the subject's brain a combination imaging and therapeutic probe, the probe including a magnetic resonance imaging antenna and an electrical energy application element, acquiring a first magnetic resonance image from the antenna of the combination probe, acquiring a second magnetic resonance image from a surface coil, combining the first and second magnetic resonance images to produce a composite image, positioning the combination probe within the brain with guidance from at least one of the images, and delivering electrical energy to the brain from the electrical energy application element of the combination probe thus positioned.Type: ApplicationFiled: March 2, 2004Publication date: August 26, 2004Inventors: Henry R. Halperin, Ronald D. Berger, Ergin Atalar, Elliot R. McVeigh, Albert Lardo, Hugh Calkins, Joao Lima
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Publication number: 20040147965Abstract: An implantable cardioverter defibrillator (ICD) system includes an internal electrode placed in the right ventricle of the heart, and a quasi-Faraday cage (which includes a single or multiple electrodes) placed over a significant portion of the heart. Defibrillation shocks are applied between the internal electrode in the ventricle and the electrode(s) of the quasi-Faraday cage. Because the quasi-Faraday cage surrounds a significant portion of the heart, it functions as a quasi-Faraday cage and is capable of confining a significant portion of the defibrillation shock field to the heart itself so as to reduce pain. Application of shocks is thus less painful to the patient.Type: ApplicationFiled: October 9, 2003Publication date: July 29, 2004Applicant: The Johns Hopkins UniversityInventor: Ronald D. Berger
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Publication number: 20040082888Abstract: A method of processing a raw acceleration signal, measured by an accelerometer-based compression monitor, to produce an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal is filtered during integration and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compressions.Type: ApplicationFiled: October 25, 2002Publication date: April 29, 2004Applicant: Revivant CorporationInventors: James Adam Palazzolo, Ronald D. Berger, Henry R. Halperin, Darren R. Sherman
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Patent number: 6701176Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures is disclosed. The system in its preferred embodiment provides an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic resonance signals and diagnostic electrodes for receiving electrical potentials. The combined electrophysiology and imaging antenna catheter is used in combination with a magnetic resonance imaging scanner to guide and provide visualization during electrophysiologic diagnostic or therapeutic procedures. The invention is particularly applicable to catheter ablation, e.g., ablation of atrial fibrillation.Type: GrantFiled: October 29, 1999Date of Patent: March 2, 2004Assignee: Johns Hopkins University School of MedicineInventors: Henry R. Halperin, Ronald D. Berger, Ergin Atalar, Elliot R. McVeigh, Albert Lardo, Hugh Calkins, Joao Lima
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Publication number: 20030199755Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures is disclosed. The system in its preferred embodiment provides an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic resonance signals and diagnostic electrodes for receiving electrical potentials. The combined electrophysiology and imaging antenna catheter is used in combination with a magnetic resonance imaging scanner to guide and provide visualization during electrophysiologic diagnostic or therapeutic procedures. The invention is particularly applicable to catheter ablation, e.g., ablation of atrial fibrillation.Type: ApplicationFiled: April 28, 2003Publication date: October 23, 2003Applicant: Johns Hopkins University School Of MedicineInventors: Henry R. Halperin, Ronald D. Berger, Ergin Atalar, Elliot R. McVeigh, Albert Lardo, Hugh Calkins, Joao Lima
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Patent number: 6633780Abstract: An implantable cardioverter defibrillator (ICD) system includes an internal electrode placed in the right ventricle of the heart, and a flexible array (that includes a plurality of electrodes) placed over a significant portion of the heart. Defibrillation shocks are applied between the internal electrode in the ventricle and the electrodes in the flexible array. Because the electrodes in the flexible array surround a significant portion of the heart, the array functions as a quasi-Faraday cage and is thus capable of confining a significant portion of the defibrillation shock field to the heart itself. As a result, defibrillation shocks are less likely to activate extracardiac muscle(s) and/or nerve tissue(s) within the surrounding chest. Application of the shocks is thus less painful to the patient.Type: GrantFiled: June 5, 2000Date of Patent: October 14, 2003Assignee: The Johns Hopkins UniversityInventor: Ronald D. Berger
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Publication number: 20030130697Abstract: A method and/or system for inducing ventricular fibrillation (VF) of the heart for treatment of post-countershock pulseless electrical activity (PEA) or asystole. In certain example embodiments, it has been found that reinduction of ventricular fibrillation, followed by restoration of blood flow with cardiopulmonary resuscitation (CPR), can make subsequent countershocks more successful in restoring a heart rhythm associated with blood flow.Type: ApplicationFiled: October 23, 2002Publication date: July 10, 2003Inventors: Henry R. Halperin, Charles T. Leng, Ronald D. Berger
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Publication number: 20030050557Abstract: Herein is disclosed a probe, including a first electrode disposed at least partially on the probe surface, a second electrode disposed at least partially on the probe surface, a first conductor electrically coupled to the first electrode, a second conductor electrically coupled to the second electrode, and a reactive element electrically coupling the first conductor and the second conductor.Type: ApplicationFiled: April 15, 2002Publication date: March 13, 2003Inventors: Robert C. Susil, Ergin Atalar, Albert C. Lardo, Henry R. Halperin, Ronald D. Berger, Hugh Calkins, Paul Bottmley
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Publication number: 20020193711Abstract: Chest compressions are measured and prompted to facilitate the effective administration of CPR. A displacement detector produces a displacement indicative signal indicative of the displacement of the CPR recipient's chest toward the recipient's spine. A signaling mechanism provides chest compression indication signals directing a chest compression force being applied to the chest and a frequency of such compressions. An automated controller and an automated constricting device may be provided for applying CPR to the recipient in an automated fashion. The automated controller receives the chest compression indication signals from the signaling mechanism, and, in accordance with the chest compression indication signals, controls the force and frequency of constrictions.Type: ApplicationFiled: March 22, 2002Publication date: December 19, 2002Inventors: Henry R. Halperin, Ronald D. Berger
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Publication number: 20020165471Abstract: Chest compressions are measured and prompted to facilitate the effective administration of CPR. A displacement detector determines a displacement indicative signal indicative of the displacement of the CPR recipient's chest toward the recipient's spine. A signaling mechanism provides chest compression indication signals directing a chest compression force being applied to the chest and a frequency of such compressions. An automated controller and an automated constricting device may be provided for applying CPR to the recipient in an automated fashion. The automated controller receives the chest compression indication signals from the signaling mechanism, and, in accordance with the chest compression indication signals, controls the force and frequency of constrictions.Type: ApplicationFiled: January 23, 2002Publication date: November 7, 2002Inventors: Henry R. Halperin, Ronald D. Berger
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Patent number: 6390996Abstract: Chest compressions are measured and prompted to facilitate the effective administration of CPR. A displacement detector produces a displacement indicative signal indicative of the displacement of the CPR recipient's chest toward the recipient's spine. A signaling mechanism provides chest compression indication signals directing a chest compression force being applied to the chest and a frequency of such compressions. An automated controller and an automated constricting device may be provided for applying CPR to the recipient in an automated fashion. The automated controller receives the chest compression indication signals from the signaling mechanism, and, in accordance with the chest compression indication signals, controls the force and frequency of constrictions.Type: GrantFiled: November 9, 1998Date of Patent: May 21, 2002Assignee: The Johns Hopkins UniversityInventors: Henry R. Halperin, Ronald D. Berger
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Publication number: 20020055694Abstract: Chest compressions are measured and prompted to facilitate the effective administration of CPR. A displacement detector produces a displacement indicative signal indicative of the displacement of the CPR recipient's chest toward the recipient's spine. A signaling mechanism provides chest compression indication signals directing a chest compression force being applied to the chest and a frequency of such compressions. An automated controller and an automated constricting device may be provided for applying CPR to the recipient in an automated fashion. The automated controller receives the chest compression indication signals from the signaling mechanism, and, in accordance with the chest compression indication signals, controls the force and frequency of constrictions.Type: ApplicationFiled: September 12, 2001Publication date: May 9, 2002Inventors: Henry R. Halperin, Ronald D. Berger
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Publication number: 20020052621Abstract: A balloon catheter device that provides radial delivery of visible or near-infrared radiation. The radial delivery of visible or near-infrared radiation to the pulmonary vein is particularly effective in creating transmural, continuous, and circumferential lesions in the pulmonary vein. Creation of these lesions electrically isolates the pulmonary veins from the left atrium of the heart and, thus is a particularly suitable method for the treatment of atrial fibrillation.Type: ApplicationFiled: February 28, 2001Publication date: May 2, 2002Inventors: Nathaniel M. Fried, Henry R. Halperin, Ronald D. Berger, Albert C. Lardo, Arkadiy Tsitlik