Patents by Inventor Bruce R. Jones

Bruce R. Jones 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: 20030120319
    Abstract: A method and system for automatically adjusting the operating parameters of a rate-adaptive cardiac pacemaker in which maximum exertion levels attained by the patient are measured at periodic intervals and stored in order to compute or update a maximum exercise capacity. The slope of the rate-response curve is then adjusted to map an exertion level corresponding to the updated maximum exercise capacity to a maximum allowable pacing rate. In accordance with the invention, a maximum exercise capacity is determined by cross-checking periodic maximum exertion level sensor values with a motion-level sensor value.
    Type: Application
    Filed: February 10, 2003
    Publication date: June 26, 2003
    Applicant: Cardiac Pacemakers, Inc.
    Inventors: Weimin Sun, Bruce R. Jones, Douglas J. Lang
  • Patent number: 6519495
    Abstract: A method and system for automatically adjusting the operating parameters of a rate-adaptive cardiac pacemaker in which maximum exertion levels attained by the patient are measured at periodic intervals and stored in order to compute or update a maximum exercise capacity. The slope of the rate-response curve is then adjusted to map an exertion level corresponding to the updated maximum exercise capacity to a maximum allowable pacing rate. In accordance with the invention, a maximum exercise capacity is determined by cross-checking periodic maximum exertion level sensor values with a motion-level sensor value.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: February 11, 2003
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Weimin Sun, Bruce R. Jones, Douglas J. Lang
  • Patent number: 6459929
    Abstract: A method and apparatus for providing congestive heart failure therapy status. An electronic device, preferably a cardiac rhythm management device, capable of measuring transthoracic impedance and for sensing a level of physical activity is implanted in a patient. The transthoracic impedance signal is processed to obtain an estimate of the subject's minute ventilation, respiratory rate, tidal volume, inspiratory rate and expiratory rate. From accelerometer measured activity, an estimate is obtained of oxygen uptake, carbon dioxide production and work rate.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: October 1, 2002
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Donald L. Hopper, Jeffrey E. Stahmann, Bruce R. Jones, James P. Nelson
  • Patent number: 6273856
    Abstract: Exertion levels of a patient are measured by monitoring signals from adaptive-rate sensors such as an accelerometer and or a minute ventilation sensor; sensor data is collected for conversion into metabolic equivalent measurements. The data obtained can be used to evaluate patient physical activity levels and can be used to assess the patient's condition and change pacing therapy or other treatments accordingly. An automatic adjustment of the adaptive-rate pacing therapy may be based on the activity levels detected by the metabolic equivalent measurements made by the pacemaker.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: August 14, 2001
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Weimin Sun, Bruce R. Jones, Donald L. Hopper, Wyatt K. Stahl
  • Patent number: 6275727
    Abstract: A method and apparatus for providing congestive heart failure therapy status. An electronic device, preferably a cardiac rhythm management device, capable of measuring transthoracic impedance and for sensing a level of physical activity is implanted in a patient. The transthoracic impedance signal is processed to obtain an estimate of the subject's minute ventilation, respiratory rate and tidal volume. From accelerometer measured activity, an estimate is obtained of oxygen uptake and carbon dioxide production. Ratios of tidal volume to respiratory rate, tidal volume to inspiratory time, minute ventilation to carbon dioxide production and oxygen uptake to heart rate are meaningftil status indicators for assessing the efficacy of particular therapy regimens to CHF patients.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: August 14, 2001
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Donald L. Hopper, Jeffrey E. Stahmann, Bruce R. Jones, James P. Nelson
  • Patent number: 5997816
    Abstract: A heat exchanger for medical applications is disclosed. The heat exchanger is characterized in that it is configured to provide a high heat transfer efficiency while minimizing the possibility of formation gaseous emboli and maximizing the ability to entrap and remove any such emboli which form or are introduced into the device. The heat exchanger is particularly well-suited for use in connection with cardioplegia apparatus.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: December 7, 1999
    Assignee: Medtronic Avecor Cardiovascular, Inc.
    Inventors: Kevin D. McIntosh, Robert W. Olsen, Bruce R. Jones, Mark S. Goodin
  • Patent number: 5931858
    Abstract: An implantable electronic circuit for monitoring a patient's aerobic capacity includes an accelerometer for detecting the onset and termination of a period of exercise and a means for measuring the patient's minute volume. By computing the time interval from the cessation of exercise to the point where the patient's minute volume reaches a predetermined value at or near an at-rest value thereof, a measure of aerobic capacity relating to a patient's physical fitness can be determined.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: August 3, 1999
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Veerichetty A. Kadhiresan, Arthur L. Olive, Bruce R. Jones
  • Patent number: 5792195
    Abstract: An implantable cardiac rhythm management device includes an accelerometer along with apparatus for processing the analog signal output from the accelerometer for deriving therefrom the time of occurrence of a selected heart sound in relation to a previously occurring ventricular depolarization event. The thus-derived heart sound information can be used to establish a hemodynamic upper rate limit for a rate adaptive pacemaker.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: August 11, 1998
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Gerrard M. Carlson, Bruce R. Jones, Julio C. Spinelli
  • Patent number: 5629712
    Abstract: A vehicular radio reception antenna is concealed within a body trim piece such as a spoiler or a luggage rack. A supporting body panel is utilized as a ground plane and a conductive loop is concealed within the trim piece. A transmission line connects two opposite sides of the resulting slot. Capacitors are used to connect the conducting loop to the sheet metal ground plane in order to form a dual slot/monopole antenna for receiving both FM and AM signals.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: May 13, 1997
    Assignee: Ford Motor Company
    Inventors: Andrew Adrian, Timothy J. Talty, Bruce R. Jones
  • Patent number: 5610618
    Abstract: A motor vehicle antenna system is disclosed for receiving electromagnetically radiated signals in the FM radio broadcast frequency range. The antenna system includes a magnetic current receiving, conformal, substantially rectangular truncated slot antenna. The slot antenna is defined in part by a substantially horizontal portion of a conductive periphery of a window opening of the motor vehicle. The slot antenna is further defined in part by a conductive trace integral with a glazing panel mounted in the window opening. The conductive trace extends horizontally a distance equal to one-half a wavelength in the FM broadcast frequency band. The ends of the trace are effectively connected to the conductive periphery of the window opening.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: March 11, 1997
    Assignee: Ford Motor Company
    Inventors: Andrew Adrian, Bruce R. Jones, Robert A. Schuessler
  • Patent number: 5483247
    Abstract: An automotive antenna system for receiving FM broadcast band radio signals includes a conformal antenna and a glazing panel having an electrically conductive coating. A conductive trace integrated with a front windshield panel, for example, forms an active slot antenna which is connected by a coaxial cable to the automobile's FM radio receiver. A transparent conductive layer is applied over a substantial portion of the rear window opening which is typically dimensioned such that it would otherwise be resonant within the FM broadcast band and parasitically coupled to the active antenna, which would cause the active antenna to have an undesirable directional pattern. The transparent layer has a sufficiently high conductivity and is applied over a sufficiently large portion of the resonant window opening to substantially reduce or eliminate resonances within the FM broadcast band.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: January 9, 1996
    Assignee: Ford Motor Company
    Inventors: Andrew Adrian, Bruce R. Jones, George F. Tannery, IV
  • Patent number: 5411705
    Abstract: A reservoir for use in an extracorporeal blood circuit including a rigid shell forming an enclosed reservoir. A filter unit divides the reservoir into an inlet chamber and outlet chamber. Cardiotomy blood filtering and defoaming means and venous blood filtering and defoaming means are located within the inlet chamber.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: May 2, 1995
    Assignee: Avecor Cardiovascular Inc.
    Inventors: Eric J. Thor, Kevin D. McIntosh, Bruce R. Jones, Jeremy D. Dando