Patents by Inventor Graydon E. Beatty

Graydon E. Beatty 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).

  • Patent number: 10593234
    Abstract: Provided is a cardiac virtualization test tank and testing system and method. A test tank is provided that includes a physical heart model representing the structure of the heart and a plurality of electrodes that output simulated biopotential signals based on an EP model representing the electrophysiological activity of the heart. The test system can be used for training, teaching, or validating a cardiac mapping, diagnosis, and/or treatment system, as examples.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: March 17, 2020
    Assignee: ACUTUS MEDICAL, INC.
    Inventors: Min Zhu, Derrick R. Chou, Graydon E. Beatty, R. Maxwell Flaherty
  • Publication number: 20190021673
    Abstract: The present invention includes systems, devices and methods for treating and/or diagnosing a heart arrhythmia, such as atrial fibrillation. Specifically, the present invention provides a system including a diagnostic catheter and an ablation catheter. The diagnostic catheter includes a shaft, multiple dipole mapping electrodes and multiple ultrasound transducers. The ablation catheter is slidingly received by the diagnostic catheter shaft.
    Type: Application
    Filed: June 19, 2018
    Publication date: January 24, 2019
    Inventors: Randell L. Werneth, Graydon E. Beatty, Timothy J. Corvi, J. Christopher Flaherty, Marcus Frederick Julian
  • Publication number: 20180315347
    Abstract: Provided is a cardiac virtualization test tank and testing system and method. A test tank is provided that includes a physical heart model representing the structure of the heart and a plurality of electrodes that output simulated biopotential signals based on an EP model representing the electrophysiological activity of the heart. The test system can be used for training, teaching, or validating a cardiac mapping, diagnosis, and/or treatment system, as examples.
    Type: Application
    Filed: May 11, 2016
    Publication date: November 1, 2018
    Inventors: Min Zhu, Derrick R. Chou, Graydon E. Beatty, R. Maxwell Flaherty
  • Publication number: 20180296114
    Abstract: Provided are a localization system and method useful in the acquisition and analysis of cardiac information. The localization system and method can be used with systems that perform cardiac mapping, diagnosis and treatment of cardiac abnormalities, as examples, and in the retrieval, processing, and interpretation of such types of information. The localization system and method use high impedance inputs, improved isolation, and relatively high drive currents for pairs of electrodes used to establish a multi-axis coordinate system. The axes can be rotated and scaled to improve localization.
    Type: Application
    Filed: May 13, 2016
    Publication date: October 18, 2018
    Inventors: Daniel J. Welsh, Marcus F. Julian, Graydon E. Beatty, Xinwei Shi, Derrick R. Chou, Randell L. Werneth, J. Christopher Flaherty
  • Patent number: 10004459
    Abstract: The present invention includes systems, devices and methods for treating and/or diagnosing a heart arrhythmia, such as atrial fibrillation. Specifically, the present invention provides a system including a diagnostic catheter and an ablation catheter. The diagnostic catheter includes a shaft, multiple dipole mapping electrodes and multiple ultrasound transducers. The ablation catheter is slidingly received by the diagnostic catheter shaft.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: June 26, 2018
    Assignee: ACUTUS MEDICAL, INC.
    Inventors: Randell L. Werneth, Graydon E. Beatty, Timothy J. Corvi, J. Christopher Flaherty, Marcus Frederick Julian
  • Publication number: 20180146948
    Abstract: A system comprises a catheter configured for delivery to a body cavity defined by surrounding tissue; a plurality of ultrasound transducers coupled to a distal end of the catheter; and an electronics module configured to selectively turn on/off each ultrasound transducer according to a predetermined activation sequence and to process signals received from each ultrasound transducer to produce at least a 2D display of the surrounding tissue. A user can selectively calculate and display various aspects of cardiac activity. The user can display Dipole Density (DDM), Charge Density (CDM), or Voltage (V-V). The shape and location of the chamber (surface), and the potentials recorded at electrodes can be displayed. The system can also change back and forth between the different display modes, and with post processing tools, can change how various types of information is displayed. Methods are also provided.
    Type: Application
    Filed: May 12, 2016
    Publication date: May 31, 2018
    Inventors: Derrick R. Chou, Graydon E. Beatty, Marcus Julian, Timothy J. Corvi, J. Christopher Flaherty, R. Maxwell Flaherty
  • Publication number: 20170202469
    Abstract: Methods of generating a graphical representation of cardiac information on a display screen are provided. The method comprises: electronically creating or acquiring an anatomical model of the heart including multiple cardiac locations; electronically determining a data set of source information corresponding to cardiac activity at the multiple cardiac locations; electronically rendering the data set of source information in relation to the multiple cardiac locations on the display screen. Systems and devices for providing a graphical representation of cardiac information are also provided.
    Type: Application
    Filed: March 24, 2015
    Publication date: July 20, 2017
    Inventors: Christoph SCHARF, Graydon E. BEATTY, Gunter SCHARF, Randell L. WERNETH, Timothy J. CORVI, J. Christopher FLAHERTY, Maxwell R. FLAHERTY
  • Publication number: 20160354010
    Abstract: A system for determining a position of a medical device within a body is provided that reduces positional error by establishing a reference origin closer to the device and/or simplifies the system by integrating components and functions. In one embodiment, a pair of drive electrodes are affixed to opposed surfaces of the body and create a pathway for transmission of current through a position sensor related to the medical device. A pair of reference electrodes proximate the drive electrodes are coupled to a common reference node outputting a reference signal establishing the reference origin. An electronic control unit determines the position of the medical device responsive to the position signal and the reference signal. In another embodiment, a patch affixed to an external surface of the body has a base layer and multiple devices supported on the base layer, electrically isolated from one another, and configured to perform different functions.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 8, 2016
    Inventors: John A. Hauck, Graydon E. Beatty, Kevin J. Dillon, Mark A. MacGregor
  • Patent number: 9398866
    Abstract: A system for determining a position of a medical device within a body is provided that reduces positional error by establishing a reference origin closer to the device and/or simplifies the system by integrating components and functions. In one embodiment, a pair of drive electrodes are affixed to opposed surfaces of the body and create a pathway for transmission of current through a position sensor related to the medical device. A pair of reference electrodes proximate the drive electrodes are coupled to a common reference node outputting a reference signal establishing the reference origin. An electronic control unit determines the position of the medical device responsive to the position signal and the reference signal. In another embodiment, a patch affixed to an external surface of the body has a base layer and multiple devices supported on the base layer, electrically isolated from one another, and configured to perform different functions.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: July 26, 2016
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: John A. Hauck, Graydon E. Beatty, Kevin Dillon, Mark A. MacGregor
  • Publication number: 20160192902
    Abstract: Disclosed are devices, systems, and methods for determining the dipole densities on a cardiac surface using electrodes positioned on a torso of a patient. Electrodes are integrated into a piece of clothing worn by a patient. The clothing serves to fix the position of the electrodes adjacent a patient's torso. Ultrasonic transducers and sensors are used to determine a distance between the epicardial surface and the electrodes and are also used to detect epicardial surface motion as well as epicardial wall thickness.
    Type: Application
    Filed: September 10, 2014
    Publication date: July 7, 2016
    Inventors: Randell L. Werneth, Graydon E. Beatty, Christoph Scharf, Gunter Scharf, J. Christopher Flaherty
  • Publication number: 20150223757
    Abstract: The present invention includes systems, devices and methods for treating and/or diagnosing a heart arrhythmia, such as atrial fibrillation. Specifically, the present invention provides a system including a diagnostic catheter and an ablation catheter. The diagnostic catheter includes a shaft, multiple dipole mapping electrodes and multiple ultrasound transducers. The ablation catheter is slidingly received by the diagnostic catheter shaft.
    Type: Application
    Filed: August 30, 2013
    Publication date: August 13, 2015
    Applicant: ACUTUS MEDICAL, INC.
    Inventors: Randell l. Werneth, Graydon E. Beatty, Timothy J. Corvi, J. Christopher Flaherty
  • Publication number: 20140031640
    Abstract: A system for determining a position of a medical device within a body is provided that reduces positional error by establishing a reference origin closer to the device and/or simplifies the system by integrating components and functions. In one embodiment, a pair of drive electrodes are affixed to opposed surfaces of the body and create a pathway for transmission of current through a position sensor related to the medical device. A pair of reference electrodes proximate the drive electrodes are coupled to a common reference node outputting a reference signal establishing the reference origin. An electronic control unit determines the position of the medical device responsive to the position signal and the reference signal. In another embodiment, a patch affixed to an external surface of the body has a base layer and multiple devices supported on the base layer, electrically isolated from one another, and configured to perform different functions.
    Type: Application
    Filed: August 6, 2013
    Publication date: January 30, 2014
    Applicant: St. Jude Medical, Atrial Fibrillation Divsion Inc.
    Inventors: John A. Hauck, Graydon E. Beatty, Kevin Dillon, Mark A. MacGregor
  • Patent number: 8517031
    Abstract: A system for determining a position of a medical device within a body is provided that reduces positional error by establishing a reference origin closer to the device and/or simplifies the system by integrating components and functions. In one embodiment, a pair of drive electrodes are affixed to opposed surfaces of the body and create a pathway for transmission of current through a position sensor related to the medical device. A pair of reference electrodes proximate the drive electrodes are coupled to a common reference node outputting a reference signal establishing the reference origin. An electronic control unit determines the position of the medical device responsive to the position signal and the reference signal. In another embodiment, a patch affixed to an external surface of the body has a base layer and multiple devices supported on the base layer, electrically isolated from one another, and configured to perform different functions.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: August 27, 2013
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: Mark A. MacGregor, John A. Hauck, Graydon E. Beatty, Kevin Dillon
  • Publication number: 20120172715
    Abstract: A system for determining a position of a medical device within a body is provided that reduces positional error by establishing a reference origin closer to the device and/or simplifies the system by integrating components and functions. In one embodiment, a pair of drive electrodes are affixed to opposed surfaces of the body and create a pathway for transmission of current through a position sensor related to the medical device. A pair of reference electrodes proximate the drive electrodes are coupled to a common reference node outputting a reference signal establishing the reference origin. An electronic control unit determines the position of the medical device responsive to the position signal and the reference signal. In another embodiment, a patch affixed to an external surface of the body has a base layer and multiple devices supported on the base layer, electrically isolated from one another, and configured to perform different functions.
    Type: Application
    Filed: December 29, 2010
    Publication date: July 5, 2012
    Inventors: Mark A. MacGregor, John A. Hauck, Graydon E. Beatty, Kevin Dillon
  • Publication number: 20080234564
    Abstract: A mapping catheter is positioned in a heart chamber, and active electrode sites are activated to impose an electric field within the chamber. The blood volume and wall motion modulates the electric field, which is detected by passive electrode sites on the preferred catheter. Electrophysiology measurements, as well as geometry measurements, are taken from the passive electrodes and used to display a map of intrinsic heart activity.
    Type: Application
    Filed: June 2, 2008
    Publication date: September 25, 2008
    Inventors: Graydon E. Beatty, Jeffrey R. Budd, John A. Hauck
  • Patent number: 7289843
    Abstract: A computer software program is described that maps the electrical activity of a patient's heart. The software program utilizes inputs from electrodes contained within a heart chamber. Inputs from the electrodes cause the program to calculate the heart chamber volume, and then to determine the position of the electrodes within the heart chamber. The program then utilizes inputs from the electrodes to calculate the three-dimensional volumetric electrical field distribution of said heart chamber. This calculation is accomplished using a spherical harmonic series expression. Finally, the computer program displays the electrical field distribution of the heart chamber.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: October 30, 2007
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: Graydon E. Beatty, Jonathan Kagan, Jeffrey R. Budd
  • Patent number: 5553611
    Abstract: A collection of measurements are taken from a set of measurement electrodes to determine the position of a catheter in a heart chamber. The preferred measurement catheter includes a relatively large dielectric volume.
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: September 10, 1996
    Assignee: Endocardial Solutions, Inc.
    Inventors: Jeffrey R. Budd, John A. Hauck, Graydon E. Beatty
  • Patent number: 5311866
    Abstract: A mapping catheter assembly 10 including a flexible lead body 12 and a deformable lead body 14. A lumen 22 is provided to accept a reference catheter 18 which includes a distal tip electrode assembly 29. In use an array 16 of electrode sites are deformed into a spherical shape after the assembly is placed in a heart chamber. The reference electrode assembly 29 is advanced into contact with the heart wall to provide calibration information for the array 16.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: May 17, 1994
    Assignee: Endocardial Therapeutics, Inc.
    Inventors: Jonathan Kagan, Graydon E. Beatty, Jeffrey R. Budd
  • Patent number: 5297549
    Abstract: An array of electrode sites are placed in a heart chamber. The shape of the chamber and the location of the electrodes is determined via impedance plethysmography. Electrical measurements taken from the electrode array and referenced to a surface contacting electrode is used to generate a three-dimensional map of electrical activity. A two-dimensional map of the electrical activity within the endocardial surface is also computed.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: March 29, 1994
    Assignee: Endocardial Therapeutics, Inc.
    Inventors: Graydon E. Beatty, Jonathan Kagan, Jeffrey R. Budd
  • Patent number: 5090422
    Abstract: A novel method and apparatus for isolating and anchoring an implantable electrically stimulating probe such as a defibrillator patch electrode for use with an automatic cardioverter/defibrillator is disclosed in which a porous bio-compatible coating or enclosure covers and isolates the electrode in a way which allows electrical conductivity via bodily fluid which passes through but separates the electrode from the adjacent tissue in the manner of dissection plane which substantially prevents tissue ingrowth. The coating or enclosure controls the minimum separation distance from the closest tissue and which reduces the local current density applied to adjacent tissue when the electrode is pulsed. The system includes a provision for attaching the enclosure means to internal bodily tissue.
    Type: Grant
    Filed: April 19, 1990
    Date of Patent: February 25, 1992
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Roger W. Dahl, Graydon E. Beatty, David K. Swanson, John E. Heil