Patents by Inventor Henry R. Halperin

Henry R. Halperin 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).

  • Publication number: 20190178960
    Abstract: An embodiment in accordance with the present invention provides an improved electrically conductive transmission line that is radio frequency (RF) safe. The present invention does not include any inductive coupling elements. Instead, multiple coils constructed from twisted pairs of wires are used to block the common mode of the received magnetic resonance (MR) signal that can cause heating, while passing the differential mode that is used for tracking and/or imaging. These twisted pair coils are easily manufactured out of a single length of twisted pair wire, but multiple segments could also be used. The twisted pair coils of the present invention are easier to manufacture than the pre-existing inductive coupling element-based transmission lines, and occupy less overall volume inside a medical device. The individual coils of twisted pairs are tuned to the resonant frequency of the MR scanner by the addition of appropriate capacitors.
    Type: Application
    Filed: May 16, 2017
    Publication date: June 13, 2019
    Inventor: Henry R. HALPERIN
  • Publication number: 20180133105
    Abstract: A system for improving cardiac output of a patient suffering from pulseless electrical activity or shock and yet displays myocardial wall motion including: a sensor to detect myocardial activity to determine the presence of residual left ventricular pump function having a contraction or ejection phase and a filling or relaxation phase, a device to prompt the application of or apply a compressive force repeatedly applied to the chest based on the sensed myocardial activity such that the compressive force is applied during at least some of the ejection phases and is ceased during at least some of the relaxation phases to permit residual cardiac filling, thereby enhancing cardiac output and organ perfusion.
    Type: Application
    Filed: October 24, 2017
    Publication date: May 17, 2018
    Inventors: Norman Paradis, David Barash, Henry R. Halperin, Gary A. Freeman
  • Patent number: 9833378
    Abstract: A system for improving cardiac output of a patient suffering from pulseless electrical activity or shock and yet displays myocardial wall motion including: a sensor to detect myocardial activity to determine the presence of residual left ventricular pump function having a contraction or ejection phase and a filling or relaxation phase, a device to prompt the application of or apply a compressive force repeatedly applied to the chest based on the sensed myocardial activity such that the compressive force is applied during at least some of the ejection phases and is ceased during at least some of the relaxation phases to permit residual cardiac filling, thereby enhancing cardiac output and organ perfusion.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: December 5, 2017
    Assignee: ZOLL Medical Corporation
    Inventors: Norman Paradis, David Barash, Henry R. Halperin, Gary A. Freeman
  • Publication number: 20170281463
    Abstract: An ECG signal processing system which removes the CPR-induced artifact from measured ECG signals obtained during the administration of CPR.
    Type: Application
    Filed: April 18, 2017
    Publication date: October 5, 2017
    Applicant: The Johns Hopkins University
    Inventors: Henry R. Halperin, Ronald D. Berger
  • Publication number: 20170246079
    Abstract: A system applies cardiopulmonary resuscitation (CPR) to a recipient. An automated controller is provided together with a compression device which periodically applies a force to a recipient's thorax under control of the automated controller. A band is adapted to be placed around a portion of the torso of the recipient corresponding to the recipient's thorax. A driver mechanism shortens and lengthens the circumference of the band. By shortening the circumference of the band, radial forces are created acting on at least lateral and anterior portions of the thorax. A translating mechanism may be. provided for translating the radial forces to increase the concentration of anterior radial forces acting on the anterior portion of the thorax. The driver mechanism may comprise a tension device for applying a circumference tensile force to the band. The driver mechanism may comprise an electric motor, a pneumatic linear actuator, or a contracting mechanism defining certain portions of the circumference of the band.
    Type: Application
    Filed: March 16, 2017
    Publication date: August 31, 2017
    Applicant: The Johns Hopkins University
    Inventor: Henry R. Halperin
  • Publication number: 20170087053
    Abstract: 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: Application
    Filed: December 13, 2016
    Publication date: March 30, 2017
    Inventors: James A. Palazzolo, Darren R. Sherman, Ronald D. Berger, Henry R. Halperin
  • Patent number: 9597257
    Abstract: A system applies cardiopulmonary resuscitation (CPR) to a recipient. An automated controller is provided together with a compression device which periodically applies a force to a recipient's thorax under control of the automated controller. A band is adapted to be placed around a portion of the torso of the recipient corresponding to the recipient's thorax. A driver mechanism shortens and lengthens the circumference of the band. By shortening the circumference of the band, radial forces are created acting on at least lateral and anterior portions of the thorax. A translating mechanism may be provided for translating the radial forces to increase the concentration of anterior radial forces acting on the anterior portion of the thorax. The driver mechanism may comprise a tension device for applying a circumference tensile force to the band. The driver mechanism may comprise an electric motor, a pneumatic linear actuator, or a contracting mechanism defining certain portions of the circumference of the band.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: March 21, 2017
    Assignee: The Johns Hopkins University
    Inventor: Henry R. Halperin
  • Patent number: 9398999
    Abstract: A chest compressions monitor for measuring the depth of chest compressions achieved during 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.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: July 26, 2016
    Assignee: The Johns Hopkins University
    Inventors: Henry R. Halperin, Ronald D. Berger
  • Publication number: 20160158098
    Abstract: A system for improving cardiac output of a patient suffering from pulseless electrical activity or shock and yet displays myocardial wall motion including: a sensor to detect myocardial activity to determine the presence of residual left ventricular pump function having a contraction or ejection phase and a filling or relaxation phase, a device to prompt the application of or apply a compressive force repeatedly applied to the chest based on the sensed myocardial activity such that the compressive force is applied during at least some of the ejection phases and is ceased during at least some of the relaxation phases to permit residual cardiac filling, thereby enhancing cardiac output and organ perfusion.
    Type: Application
    Filed: February 10, 2016
    Publication date: June 9, 2016
    Inventors: Norman PARADIS, David Barash, Henry R. Halperin, Gary Freeman
  • Patent number: 9301705
    Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures includes 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, such as ablation of cardiac arrhythmias. The combined electrophysiology and imaging antenna catheter may further include an ablation tip, and be used as an intracardiac device to deliver energy to selected areas of tissue and visualize the resulting ablation lesions.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: April 5, 2016
    Assignee: Johns Hopkins University School of Medicine
    Inventors: Henry R. Halperin, Ronald D. Berger, Ergin Atalar, Elliott R. McVeigh, Albert Lardo, Hugh Caikins, Joao Lima
  • Patent number: 9295828
    Abstract: An implantable lead includes a lead conductor having a length extending from a proximal end to a distal end. A self-resonant inductor is connected in series along a portion of the length of the lead conductor. The self-resonant inductor includes a single length of conductive material including a dielectric coating substantially surrounding the single length of conductive material. The self-resonant inductor includes a first coiled or spiral conductor disposed along an inductor section spanning in a first direction from a first location to a second location. A second coiled or spiral conductor is disposed along the inductor section spanning in a second direction from the second location to the first location, where the second direction is opposite the first direction. A third coiled or spiral conductor is disposed along the inductor section spanning in the first direction from the first location to the second location.
    Type: Grant
    Filed: November 18, 2012
    Date of Patent: March 29, 2016
    Assignee: Greatbatch Ltd.
    Inventors: Henry R. Halperin, Robert A. Stevenson, Kishore Kumar Kondabatni, Christine A. Frysz
  • Patent number: 9259543
    Abstract: A method for improving the cardiac output of a patient who is suffering from pulseless electrical activity or shock and yet still displays some myocardial wall motion including sensing myocardial activity to determine the presence of residual left ventricular pump function having a contraction or ejection phase and a filling or relaxation phase. In such cases, a compressive force is repeatedly applied to the chest based on the sensed myocardial activity such that the compressive force is applied during at least some of the ejection phases and is ceased during at least some of the relaxation phases to permit residual cardiac filling, thereby enhancing cardiac output and organ perfusion. Also incorporated may be a logic circuit capable of utilizing multiple sensing modalities and optimizing the synchronization pattern between multiple phasic therapeutic modalities and myocardial residual mechanical function.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: February 16, 2016
    Assignee: Zoll Medical Corporation
    Inventors: Norman Paradis, David Barash, Henry R. Halperin, Gary Freeman
  • Patent number: 9248283
    Abstract: A band stop filter is provided for a lead wire of an active medical device (AMD). The band stop filter includes a capacitor in parallel with an inductor. The parallel capacitor and inductor are placed in series with the lead wire of the AMD, wherein values of capacitance and inductance are selected such that the band stop filter is resonant at a selected frequency. The Q of the inductor may be relatively maximized and the Q of the capacitor may be relatively minimized to reduce the overall Q of the band stop filter to attenuate current flow through the lead wire along a range of selected frequencies. In a preferred form, the band stop filter is integrated into a TIP and/or RING electrode for an active implantable medical device.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: February 2, 2016
    Assignee: Greatbatch Ltd.
    Inventors: Henry R. Halperin, Robert A. Stevenson
  • Patent number: 9242090
    Abstract: 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: Grant
    Filed: July 8, 2014
    Date of Patent: January 26, 2016
    Assignees: MRI Interventions Inc., Greatbatch Ltd.
    Inventors: Ergin Atalar, Robert Susil, Albert Lardo, Henry R. Halperin
  • Patent number: 9119968
    Abstract: A band stop filter is provided for a lead wire of an active medical device (AMD). The band stop filter includes a capacitor in parallel with an inductor. The parallel capacitor and inductor are placed in series with the lead wire of the AMD, wherein values of capacitance and inductance are selected such that the band stop filter is resonant at a selected frequency. The Q of the inductor may be relatively maximized and the Q of the capacitor may be relatively minimized to reduce the overall Q of the band stop filter to attenuate current flow through the lead wire along a range of selected frequencies. In a preferred form, the band stop filter is integrated into a TIP and/or RING electrode for an active implantable medical device.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: September 1, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Henry R. Halperin, Robert A. Stevenson
  • Publication number: 20150164739
    Abstract: A chest compressions monitor for measuring the depth of chest compressions achieved during 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.
    Type: Application
    Filed: February 24, 2015
    Publication date: June 18, 2015
    Applicant: JOHNS HOPKINS UNIVERSITY
    Inventors: Henry R. Halperin, Ronald D. Berger
  • Publication number: 20150148717
    Abstract: A system applies cardiopulmonary resuscitation (CPR) to a recipient. An automated controller is provided together with a compression device which periodically applies a force to a recipient's thorax under control of the automated controller. A band is adapted to be placed around a portion of the torso of the recipient corresponding to the recipient's thorax. A driver mechanism shortens and lengthens the circumference of the band. By shortening the circumference of the band, radial forces are created acting on at least lateral and anterior portions of the thorax. A translating mechanism may be provided for translating the radial forces to increase the concentration of anterior radial forces acting on the anterior portion of the thorax. The driver mechanism may comprise a tension device for applying a circumference tensile force to the band. The driver mechanism may comprise an electric motor, a pneumatic linear actuator, or a contracting mechanism defining certain portions of the circumference of the band.
    Type: Application
    Filed: February 4, 2015
    Publication date: May 28, 2015
    Applicant: Johns Hopkins University
    Inventor: Henry R. Halperin
  • Patent number: 9031670
    Abstract: A shielded component or network for an active medical device (AMD) implantable lead includes an implantable lead having a length extending from a proximal end to a distal end, all external of an AMD housing, a passive component or network disposed somewhere along the length of the implantable lead, the passive component or network including at least one inductive component having a first inductive value, and an electromagnetic shield substantially surrounding the inductive component or the passive network. The first inductive value of the inductive component is adjusted to account for a shift in its inductance to a second inductive value when shielded.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: May 12, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Warren S. Dabney, Robert Shawn Johnson, Holly Noelle Moschiano, Robert A. Stevenson, Henry R. Halperin, Albert C. Lardo, Kishore Kumar Kondabatni
  • Patent number: 9008799
    Abstract: A bandstop filter having optimum component values is provided for a lead of an active implantable medical device (AIMD). The bandstop filter includes a capacitor in parallel with an inductor. The parallel capacitor and inductor are placed in series with the implantable lead of the AIMD, wherein values of capacitance and inductance are selected such that the bandstop filter is resonant at a selected frequency. The Q of the inductor may be relatively maximized and the Q of the capacitor may be relatively minimized to reduce the overall Q of the bandstop filter to attenuate current flow through the implantable lead along a range of selected frequencies.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: April 14, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Warren S. Dabney, Robert Shawn Johnson, Holly Noelle Moschiano, Henry R. Halperin
  • Patent number: 8989870
    Abstract: An energy management system facilitates the transfer of high frequency energy coupled into an implanted lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted lead to the energy dissipating surface through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted lead's impedance characteristics.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: March 24, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Robert Shawn Johnson, Warren S. Dabney, Robert A. Stevenson, Christopher Michael Williams, Holly Noelle Moschiano, Scott Brainard, Daniel Robert Kaiser, Henry R. Halperin, Albert C. Lardo