RONALD DAVID BERGER, M.D.
Osteopathic Medicine at Wolfe St, Baltimore, MD

2010010, Apr 29, 2010

Sep 14, 2009

12/559132

Scott R. Stubbs - Maple Grove MN, US
Diane Schuster - Bloomington MN, US
Jean M. Bobgan - Maple Grove MN, US
Ronald D. Berger - Baltimore MD, US

A61N 1/37

607 37

Systems and methods for checking the connection of a lead to an implantable medical device implanted within a patient's body are disclosed. An illustrative method includes measuring at least one characteristic associated with the lead connection to the implantable medical device prior to an MRI scan. The method further includes comparing the at least one measured characteristic with a threshold parameter programmed within the implantable medical device. The method further includes setting a flag in the implantable medical device upon the at least one measured characteristic satisfying at least one condition associated with the threshold parameter for a predetermined period of time. The flag indicates a disconnection of the lead from the implantable medical device.

8096962, Jan 17, 2012

Jun 20, 2006

11/472149

James Adam Palazzolo - Sunnyvale CA, US
Ronald D. Berger - Baltimore MD, US
Henry R. Halperin - Baltimore MD, US
Darren R. Sherman - Sunnyvale CA, US

ZOLL Circulation, Inc. - Sunnyvale CA

A61H 31/00, A61B 5/0402

601 41, 601 42, 601 43, 601 44, 601DIG 9, 601DIG 10, 128901, 607 4, 607 5, 607 6, 600509, 600513

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.

6865413, Mar 8, 2005

Jan 23, 2002

10/057540

Henry R. Halperin - Baltimore MD, US
Ronald D. Berger - Baltimore MD, US

Revivant Corporation - Sunnyvale CA

A61B005/04

600509

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. The system may be provided with a tilt compensator comprising a tilt sensor mechanism outputting a tilt compensation signal indicative of the extent of tilt of the device, and may be further provided with an adjuster for adjusting the distance value in accordance with the tilt compensation signal. An ECG signal processor may be provided which removes the CPR-induced artifact from a measured ECG signal obtained during the administration of CPR.

7155271, Dec 26, 2006

Apr 28, 2003

10/424093

Henry R. Halperin - Baltimore MD, US
Ronald D. Berger - Baltimore MD, US
Ergin Atalar - Columbia MD, US
Elliot R. McVeigh - Potomac MD, US
Albert Lardo - Baldwin MD, US
Hugh Calkins - Baltimore MD, US
Joao Lima - Timonium MD, US

Johns Hopkins University School of Medicine - Baltimore MD

A61B 5/055

600411, 324307, 324309, 324318, 600421

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. In embodiments which are useful for catheter ablation, the combined electrophysiology and imaging antenna catheter may further include an ablation tip, and such embodiment may be used as an intracardiac device to both deliver energy to selected areas of tissue and visualize the resulting ablation lesions, thereby greatly simplifying production of continuous linear lesions. The invention further includes embodiments useful for guiding electrophysiologic diagnostic and therapeutic procedures other than ablation.

7822460, Oct 26, 2010

Oct 26, 2007

11/924877

Henry R. Halperin - Baltimore MD, US
Ronald D. Berger - Baltimore MD, US
Ergin Atalar - Columbia MD, US
Elliot R. McVeigh - Potomac MD, US
Albert Lardo - Baldwin MD, US
Hugh Calkins - Baltimore MD, US
Joao Lima - Timonium MD, US

Surgi-Vision, Inc. - Memphis TN

A61B 5/05, G01V 3/00

600411, 324307

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 further provides a system for eliminating the pickup of RF energy in which intracardiac wires are detuned by filtering so that they become very inefficient antennas. An RF filtering system is provided for suppressing the MR imaging signal while not attenuating the RF ablative current. Steering means may be provided for steering the invasive catheter under MR guidance.

7295871, Nov 13, 2007

Jul 29, 2004

10/901862

Henry R. Halperin - Baltimore MD, US
Ronald D. Berger - Baltimore MD, US

Zoll Circulation, Inc. - Sunnyvale CA

A61B 5/04, A61B 5/103

600509, 600587

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. The system may be provided with a tilt compensator comprising a tilt sensor mechanism outputting a tilt compensation signal indicative of the extent of tilt of the device, and may be further provided with an adjuster for adjusting the distance value in accordance with the tilt compensation signal. An ECG signal processor may be provided which removes the CPR-induced artifact from a measured ECG signal_obtained during the administration of CPR.

2010009, Apr 15, 2010

Dec 9, 2009

12/654052

Henry R. Halperin - Baltimore MD, US
Charles T. Leng - Timonium MD, US
Ronald D. Berger - Baltimore MD, US

Johns Hopkins University - Baltimore MD

A61N 1/39

607 5

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.

5560368, Oct 1, 1996

Nov 15, 1994

8/340861

Ronald D. Berger - Baltimore MD

A61B 50452

128703

A method for analyzing electrocardiograph signals to determine risk of malignant arrhythmias, that involves: sensing fluctuations in voltage resulting from electrical activity of a heart over a time period of about 256 seconds as signals having an analog value; converting such signals having an analog value to digital values corresponding substantially to the analog value of the signals; recording the digital values in a record; analyzing the digital values of the record by: identifying a time of each R wave of a heartbeat; defining a template QT interval for a heartbeat by selecting a beginning of a QRS complex and an end of a T wave for the heartbeat; determining an alteration value selected from the group consisting of an elongation of a heartbeat in time and a compression of a heartbeat in time as an error function for the heartbeat; performing a binary search to determine a minimal value for the error function; and assessing changes in QT interval for each heartbeat using the entire T wave.

7844319, Nov 30, 2010

Apr 15, 2002

10/123534

Robert C. Susil - Baltimore MD, US
Gwyneth Susil - Baltimore MD, US
Ergin Atalar - Bilkent, Ankara, TR
Albert C. Lardo - Baldin MD, US
Henry R. Halperin - Baltimore MD, US
Ronald D. Berger - Baltimore MD, US
Hugh Calkins - Baltimore MD, US
Paul Bottomley - Baltimore MD, US

A61B 5/055

600411, 600373, 600393, 600422, 600423, 606 32, 606 33, 606 46

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.