Patents by Inventor Russell E. Anderson
Russell E. Anderson 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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Publication number: 20160136433Abstract: A method for allowing cardiac signals to be sensed and pacing pulse vectors to be delivered between two or more electrodes. In one embodiment, cardiac signals are sensed and pacing pulse vectors are delivered between at least one of a first left ventricular electrode and a second left ventricular electrode. Alternatively, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrodes and a first supraventricular electrode. In addition, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrode, the first supraventricular electrode and a conductive housing. In an additional embodiment, a first right ventricular electrode is used to sense cardiac signals and provide pacing pulses with different combinations of the first and second left ventricular electrodes, the first supraventricular electrode and the housing.Type: ApplicationFiled: January 25, 2016Publication date: May 19, 2016Inventors: Jeffrey E. Stahmann, Bruce Alan Tockman, Randy Westlund, Rene H. Wentkowski, Russell E. Anderson
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Patent number: 9278221Abstract: A method for allowing cardiac signals to be sensed and pacing pulse vectors to be delivered between two or more electrodes. In one embodiment, cardiac signals are sensed and pacing pulse vectors are delivered between at least one of a first left ventricular electrode and a second left ventricular electrode. Alternatively, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrodes and a first supraventricular electrode. In addition, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrode, the first supraventricular electrode and a conductive housing. In an additional embodiment, a first right ventricular electrode is used to sense cardiac signals and provide pacing pulses with different combinations of the first and second left ventricular electrodes, the first supraventricular electrode and the housing.Type: GrantFiled: May 29, 2014Date of Patent: March 8, 2016Assignee: Cardiac Pacemakers, Inc.Inventors: Jeffrey E. Stahmann, Bruce Alan Tockman, Randy Westlund, Rene H. Wentkowski, Russell E. Anderson
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Publication number: 20140277236Abstract: A method for allowing cardiac signals to be sensed and pacing pulse vectors to be delivered between two or more electrodes. In one embodiment, cardiac signals are sensed and pacing pulse vectors are delivered between at least one of a first left ventricular electrode and a second left ventricular electrode. Alternatively, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrodes and a first supraventricular electrode. In addition, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrode, the first supraventricular electrode and a conductive housing. In an additional embodiment, a first right ventricular electrode is used to sense cardiac signals and provide pacing pulses with different combinations of the first and second left ventricular electrodes, the first supraventricular electrode and the housing.Type: ApplicationFiled: May 29, 2014Publication date: September 18, 2014Applicant: Cardiac Pacemakers, Inc.Inventors: Jeffrey E. Stahmann, Bruce Alan Tockman, Randy Westlund, Rene H. Wentkowski, Russell E. Anderson
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Patent number: 8798744Abstract: A method for allowing cardiac signals to be sensed and pacing pulse vectors to be delivered between two or more electrodes. In one embodiment, cardiac signals are sensed and pacing pulse vectors are delivered between at least one of a first left ventricular electrode and a second left ventricular electrode. Alternatively, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrodes and a first supraventricular electrode. In addition, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrode, the first supraventricular electrode and a conductive housing. In an additional embodiment, a first right ventricular electrode is used to sense cardiac signals and provide pacing pulses with different combinations of the first and second left ventricular electrodes, the first supraventricular electrode and the housing.Type: GrantFiled: March 30, 2011Date of Patent: August 5, 2014Assignee: Cardiac Pacemakers, Inc.Inventors: Jeffrey E. Stahmann, Bruce Tockman, Randy Westlund, Rene H. Wentkowski, Russell E. Anderson
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Patent number: 7991468Abstract: A method for allowing cardiac signals to be sensed and pacing pulse vectors to be delivered between two or more electrodes. In one embodiment, cardiac signals are sensed and pacing pulse vectors are delivered between least one of a first left ventricular electrode and a second left ventricular electrode. Alternatively, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrodes and a first supraventricular electrode. In addition, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrode, the first supraventricular electrode and a conductive housing. In an additional embodiment, a first right ventricular electrode is used to sense cardiac signals and provide pacing pulses with different combinations of the first and second left ventricular electrodes, the first supraventricular electrode and the housing.Type: GrantFiled: October 30, 2006Date of Patent: August 2, 2011Assignee: Cardiac Pacemakers, Inc.Inventors: Jeffrey E. Stahmann, Bruce Tockman, Randy Westlund, Rene H. Wentkowski, Russell E. Anderson
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Publication number: 20110178566Abstract: A method for allowing cardiac signals to be sensed and pacing pulse vectors to be delivered between two or more electrodes. In one embodiment, cardiac signals are sensed and pacing pulse vectors are delivered between at least one of a first left ventricular electrode and a second left ventricular electrode. Alternatively, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrodes and a first supraventricular electrode. In addition, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrode, the first supraventricular electrode and a conductive housing. In an additional embodiment, a first right ventricular electrode is used to sense cardiac signals and provide pacing pulses with different combinations of the first and second left ventricular electrodes, the first supraventricular electrode and the housing.Type: ApplicationFiled: March 30, 2011Publication date: July 21, 2011Inventors: Jeffrey E. Stahmann, Bruce Tockman, Randy Westlund, Rene H. Wentkowski, Russell E. Anderson
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Patent number: 7945325Abstract: A method for allowing cardiac signals to be sensed and pacing pulse vectors to be delivered between two or more electrodes. In one embodiment, cardiac signals are sensed and pacing pulse vectors are delivered between at least one of a first left ventricular electrode and a second left ventricular electrode. Alternatively, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrodes and a first supraventricular electrode. In addition, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrode, the first supraventricular electrode and a conductive housing. In an additional embodiment, a first right ventricular electrode is used to sense cardiac signals and provide pacing pulses with different combinations of the first and second left ventricular electrodes, the first supraventricular electrode and the housing.Type: GrantFiled: October 30, 2006Date of Patent: May 17, 2011Assignee: Cardiac Pacemakers, Inc.Inventors: Jeffrey E. Stahmann, Bruce Tockman, Randy Westlund, Rene H. Wentkowski, Russell E. Anderson
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Patent number: 7877151Abstract: Low voltage conductors in a lead assembly share a lumen in a tube and are separated from adjacent conductors in the tube by an insulative layer. In an embodiment, low voltage conductors are combined with high voltage conductors. In another embodiment, low voltage conductors are combined with other low voltage conductors.Type: GrantFiled: February 22, 2005Date of Patent: January 25, 2011Assignee: Cardiac Pacemakers, Inc.Inventors: Eric John Wengreen, Gregory L. Sundberg, Russell E. Anderson
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Patent number: 7130682Abstract: A method for allowing cardiac signals to be sensed and pacing pulse vectors to be delivered between two or more electrodes. In one embodiment, cardiac signals are sensed and pacing pulse vectors are delivered between least one of a first left ventricular electrode and a second left ventricular electrode. Alternatively, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrodes and a first supraventricular electrode. In addition, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrode, the first supraventricular electrode and a conductive housing. In an additional embodiment, a first right ventricular electrode is used to sense cardiac signals and provide pacing pulses with different combinations of the first and second left ventricular electrodes, the first supraventricular electrode and the housing.Type: GrantFiled: February 8, 2001Date of Patent: October 31, 2006Assignee: Cardiac Pacemakers, Inc.Inventors: Jeffrey E. Stahmann, Bruce Tockman, Randy Westlund, Rene H. Wentkowski, Russell E. Anderson
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Method and apparatus for measuring lead impedance in an implantable cardiac rhythm management device
Patent number: 6760624Abstract: A method and apparatus for measuring the lead impedance of a medical lead used with an implantable medical stimulator which relies upon a count of the number of switching cycles of a switching converter power supply to replenish the energy delivered from an pacing capacitor in delivering a stimulating pulse to tissue.Type: GrantFiled: December 3, 2001Date of Patent: July 6, 2004Assignee: Cardiac Pacemakers, Inc.Inventors: Russell E. Anderson, David J. Yonce -
Method and apparatus for measuring lead impedance in an implantable cardiac rhythm management device
Publication number: 20030105500Abstract: A method and apparatus for measuring the lead impedance of a medical lead used with an implantable medical stimulator which relies upon a count of the number of switching cycles of a switching converter power supply to replenish the energy delivered from an pacing capacitor in delivering a stimulating pulse to tissue.Type: ApplicationFiled: December 3, 2001Publication date: June 5, 2003Applicant: Cardiac Pacemakers, IncInventors: Russell E. Anderson, David J. Yonce -
Publication number: 20020107551Abstract: An apparatus and method for allowing cardiac signals to be sensed and pacing pulse vectors to be delivered between two or more electrodes. In one embodiment, cardiac signals are sensed and pacing pulse vectors are delivered between least one of a first left ventricular electrode and a second left ventricular electrode. Alternatively, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrodes and a first supraventricular electrode. In addition, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first and second left ventricular electrode, the first supraventricular electrode and a conductive housing. In an additional embodiment, a first right ventricular electrode is used to sense cardiac signals and provide pacing pulses with different combinations of the first and second left ventricular electrodes, the first supraventricular electrode and the housing.Type: ApplicationFiled: February 8, 2001Publication date: August 8, 2002Inventors: Jeffrey E. Stahmann, Bruce Tockman, Randy Westlund, Rene H. Wentkowski, Russell E. Anderson
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Publication number: 20020082651Abstract: An apparatus and method for allowing cardiac signals to be sensed and pacing pulse vectors to be delivered between two or more electrodes. In one embodiment, cardiac signals are sensed and pacing pulse vectors are delivered between least one of a first left ventricular electrode and a second left ventricular electrode in a left ventricular region. In an additional embodiment, cardiac signals are sensed and pacing pulse vectors are delivered between different combinations of the first left ventricular electrode and a second left ventricular electrode in a left ventricular region and a first supraventricular electrode in a right atrial region. In addition, the housing of the apparatus is conductive so as to allow cardiac signals to be sensed and pacing pulse vectors to be delivered between different combinations of the first left ventricular electrode, the second left ventricular electrode, the first supraventricular electrode and the housing.Type: ApplicationFiled: December 26, 2000Publication date: June 27, 2002Inventors: Jeffrey E. Stahmann, Bruce Tockman, Randy Westlund, Rene H. Wentkowski, Russell E. Anderson
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Patent number: 6112119Abstract: Two mechanisms work together to adjust two variables independently so that the gain of an input amplifier used to find physiologic signals in an implantable medical device can be automatically adjusted to enhance the signal to noise ratio of the electrical input to said amplifier. The first determines whether there has been too long a time between senses found in the body's electrical input to the amplifier and if true, and no other conditions override that consideration, it adjusts the value of a long term average parameter which is used as a referent parameter to adjust the actual parameter that is used as the referent for making either a threshold level adjustment or gain change, depending on the structure of the particular design's circuitry and/or software. One set of adjustments to the gain referent parameter depends on the relative size of the long term average parameter and the gain referent parameter.Type: GrantFiled: October 27, 1997Date of Patent: August 29, 2000Assignee: Medtronic, Inc.Inventors: Robert J. Schuelke, James W. Busacker, James D. Reinke, Kevin L. Bright, Russell E. Anderson, Virginia De La Riva, David W. Hoffman, Ren Zhou
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Patent number: 5782880Abstract: A tissue electrical stimulator and electrical pulse waveform are described. The stimulator or pulse generator may deliver the pules preferably through an endocardial electrode to pace a heart but could be used for other tissue such as nerves or to deliver defibrillation pulses through other means. A preferred circuit is described employing timing of a gate voltage level on an output transistor for the discharge capacitor(s) of the pulse generator. The waveform has a leading edge starting above zero volts and ramps upward for an initial fraction until a saturation voltage is reached and then ramps downward.Type: GrantFiled: April 23, 1996Date of Patent: July 21, 1998Assignee: Medtronic, Inc.Inventors: Stuart P. Lahtinen, Russell E. Anderson
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Patent number: 5265602Abstract: A pacemaker having two bipolar leads, one atrial, one ventricular, each with TIP and RING electrodes, configured as for conventional bipolar pacing/sensing in both chambers. Switching circuitry in the pacemaker is operable to select from among various possible sensing configurations, including one configuration in which sensing is performed between the ring electrodes of the respective pacing/sensing leads. Pacing is preferably performed in a conventional unipolar configuration in each chamber, from the respective tip electrodes. The "ring-to-ring" EGM signal is applied to filtering and EGM amplifier circuitry, and then provided to a telemetry system for transmission to an external receiver. The ring-to-ring EGM signal possesses the high resolution properties of conventional intracardiac signals, and is relatively unaffected by the after-potentials and tissue polarization effects that arise when the same lead is used for pacing and sensing.Type: GrantFiled: July 13, 1992Date of Patent: November 30, 1993Assignee: Medtronic, Inc.Inventors: Russell E. Anderson, James D. Reinke, Kirk S. Vadnais, Terrence R. Hudrlik
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Patent number: 5088490Abstract: A switched capacitor ventricular sense amplifier for an implantable pulse generator having unique control of the switching clock for minimization of transients during the period just preceding, during and following an atrial paced event. The timing is modified to discontinue switching during this period. This ensures that transients occurring as a result of functionally disconnecting and subsequently reconnecting the sensing lead with the sense amplifier are not propagated within the switched capacitor bandpass filter. An alternative approach is to increase the clocking rate during the blanked period to ensure that the transients created by the atrial pace or by disconnecting and reconnecting the sensing lead are rapidly processed by the switched capacitor bandpass filter and that processing is completed shortly following the atrial paced event. This alternative approach requires a gate at the sense amplifier output to disable propagation of any transients processed.Type: GrantFiled: January 19, 1990Date of Patent: February 18, 1992Assignee: Medtronic, Inc.Inventors: Joseph P. Pagliolo, Russell E. Anderson, Richard F. Weispfenning, Robert A. Betzold