Patents by Inventor Mark K. Erickson

Mark K. Erickson 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: 10864377
    Abstract: An intracardiac ventricular pacemaker is configured to operate in in a selected one of an atrial-tracking ventricular pacing mode and a non-atrial tracking ventricular pacing mode. A control circuit of the pacemaker determines at least one motion signal metric from the motion signal, compares the at least one motion signal metric to pacing mode switching criteria, and, responsive to the pacing mode switching criteria being satisfied, switches from the selected one of the non-atrial tracking pacing mode and the atrial tracking pacing mode to the other one of the non-atrial tracking pacing mode and the atrial tracking pacing mode for controlling ventricular pacing pulses delivered by the pacemaker.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: December 15, 2020
    Assignee: Medtronic, Inc.
    Inventors: Todd J. Sheldon, Yong K. Cho, Wade M. Demmer, Mark K. Erickson, Vincent E. Splett
  • Publication number: 20200121932
    Abstract: An intracardiac ventricular pacemaker is configured to detect a ventricular diastolic event from a motion signal received by a pacemaker control circuit from a motion sensor. The control circuit starts an atrial refractory period having an expiration time set based on a time of the detection of the ventricular diastolic event. The control circuit detects an atrial systolic event from the motion signal after expiration of the atrial refractory period and controls a pulse generator of the pacemaker to deliver a pacing pulse to a ventricle of a patient's heart at a first atrioventricular pacing time interval after the atrial systolic event detection.
    Type: Application
    Filed: December 19, 2019
    Publication date: April 23, 2020
    Inventors: Vincent E. SPLETT, Todd J. SHELDON, Yong K. CHO, Wade M. DEMMER, Mark K. ERICKSON
  • Publication number: 20200046983
    Abstract: An intracardiac ventricular pacemaker having a motion sensor is configured to produce a motion signal including an atrial systolic event and a ventricular diastolic event indicating a passive ventricular filling phase, set a detection threshold to a first amplitude during an expected time interval of the ventricular diastolic event and to a second amplitude lower than the first amplitude after an expected time interval of the ventricular diastolic event. The pacemaker is configured to detect the atrial systolic event in response to the motion signal crossing the detection threshold and set an atrioventricular pacing interval in response to detecting the atrial systolic event.
    Type: Application
    Filed: October 16, 2019
    Publication date: February 13, 2020
    Inventors: Vincent E. SPLETT, Todd J. SHELDON, Yong K. CHO, Wade M. DEMMER, Mark K. ERICKSON
  • Publication number: 20200038665
    Abstract: Implantable medical systems enter an exposure mode of operation, either manually via a down linked programming instruction or by automatic detection by the implantable system of exposure to a magnetic disturbance. A controller then determines the appropriate exposure mode by considering various pieces of information including the device type including whether the device has defibrillation capability, pre-exposure mode of therapy including which chambers have been paced, and pre-exposure cardiac activity that is either intrinsic or paced rates. Additional considerations may include determining whether a sensed rate during the exposure mode is physiologic or artificially produced by the magnetic disturbance. When the sensed rate is physiologic, then the controller uses the sensed rate to trigger pacing and otherwise uses asynchronous pacing at a fixed rate.
    Type: Application
    Filed: October 14, 2019
    Publication date: February 6, 2020
    Inventors: Hyun J. YOON, Wade M. DEMMER, Matthew J. HOFFMAN, Robert A. BETZOLD, Jonathan D. EDMONSON, Michael L. ELLINGSON, Mark K. ERICKSON, Ben W. HERBERG, Juliana E. PRONOVICI, James D. REINKE, Todd J. SHELDON, Paul R. SOLHEIM
  • Patent number: 10532212
    Abstract: An intracardiac ventricular pacemaker is configured to detect a ventricular diastolic event from a motion signal received by a pacemaker control circuit from a motion sensor. The control circuit starts an atrial refractory period having an expiration time set based on a time of the detection of the ventricular diastolic event. The control circuit detects an atrial systolic event from the motion signal after expiration of the atrial refractory period and controls a pulse generator of the pacemaker to deliver a pacing pulse to a ventricle of a patient's heart at a first atrioventricular pacing time interval after the atrial systolic event detection.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 14, 2020
    Assignee: Medtronic, Inc.
    Inventors: Vincent E Splett, Todd J Sheldon, Yong K Cho, Wade M Demmer, Mark K Erickson
  • Patent number: 10449366
    Abstract: An intracardiac ventricular pacemaker having a motion sensor is configured to produce a motion signal including an atrial systolic event and a ventricular diastolic event indicating a passive ventricular filling phase, set a detection threshold to a first amplitude during an expected time interval of the ventricular diastolic event and to a second amplitude lower than the first amplitude after an expected time interval of the ventricular diastolic event. The pacemaker is configured to detect the atrial systolic event in response to the motion signal crossing the detection threshold and set an atrioventricular pacing interval in response to detecting the atrial systolic event.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: October 22, 2019
    Assignee: Medtronic, Inc.
    Inventors: Vincent E Splett, Todd J Sheldon, Yong K Cho, Wade M Demmer, Mark K Erickson
  • Patent number: 10441798
    Abstract: Implantable medical systems enter an exposure mode of operation, either manually via a down linked programming instruction or by automatic detection by the implantable system of exposure to a magnetic disturbance. A controller then determines the appropriate exposure mode by considering various pieces of information including the device type including whether the device has defibrillation capability, pre-exposure mode of therapy including which chambers have been paced, and pre-exposure cardiac activity that is either intrinsic or paced rates. Additional considerations may include determining whether a sensed rate during the exposure mode is physiologic or artificially produced by the magnetic disturbance. When the sensed rate is physiologic, then the controller uses the sensed rate to trigger pacing and otherwise uses asynchronous pacing at a fixed rate.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: October 15, 2019
    Assignee: Medtronic, Inc.
    Inventors: Hyun J. Yoon, Wade M. Demmer, Matthew J. Hoffman, Robert A. Betzold, Jonathan D. Edmonson, Michael L. Ellingson, Mark K. Erickson, Ben E. Herberg, Juliana E. Pronovici, James D. Reinke, Todd J. Sheldon, Paul R. Solheim
  • Publication number: 20190308021
    Abstract: An intracardiac pacemaker system is configured to produce physiological atrial event signals by a sensing circuit of a ventricular intracardiac pacemaker and select a first atrial event input as the physiological atrial event signals. The ventricular intracardiac pacemaker detects atrial events from the selected first atrial event input, determines if input switching criteria are met, and switches from the first atrial event input to a second atrial event input in response to the input switching criteria being met. The second atrial event input includes broadcast atrial event signals produced by a second implantable medical device and received by the ventricular intracardiac pacemaker.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Inventors: Wade M. DEMMER, Yong K. CHO, Mark K. ERICKSON, Todd J. SHELDON
  • Patent number: 10350416
    Abstract: An implantable medical device having a housing that encloses a pulse generator and a sensing module includes a housing-based cathode electrode electrically coupled to the pulse generator and to the sensing module. A sensing extension extending from the housing proximal end includes an anode electrode electrically coupled to the sensing module for sensing cardiac electrical signals. The sensing extension includes a flotation member that causes the sensing extension to extend away from the housing along a direction of flowing blood when the implantable medical device is deployed within a cardiovascular system of a patient.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: July 16, 2019
    Assignee: Medtronic, Inc.
    Inventors: Matthew D Bonner, Mark K Erickson, Todd J Sheldon
  • Patent number: 10328270
    Abstract: An intracardiac pacemaker system is configured to produce physiological atrial event signals by a sensing circuit of a ventricular intracardiac pacemaker and select a first atrial event input as the physiological atrial event signals. The ventricular intracardiac pacemaker detects atrial events from the selected first atrial event input, determines if input switching criteria are met, and switches from the first atrial event input to a second atrial event input in response to the input switching criteria being met. The second atrial event input includes broadcast atrial event signals produced by a second implantable medical device and received by the ventricular intracardiac pacemaker.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: June 25, 2019
    Assignee: Medtronic, Inc.
    Inventors: Wade M Demmer, Yong K Cho, Mark K Erickson, Todd J Sheldon
  • Patent number: 10286214
    Abstract: An intracardiac ventricular pacemaker having a motion sensor is configured to produce a motion signal including an atrial systolic event and at least one ventricular diastolic event. The pacemaker is configured to set an atrial refractory period, detect a change in a ventricular diastolic event metric and adjust the atrial refractory period in response to detecting the change. The pacemaker sets set an atrioventricular pacing interval in response to detecting the atrial systolic event from the motion signal after expiration of the atrial refractory period.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: May 14, 2019
    Assignee: Medtronic, Inc.
    Inventors: Wade M Demmer, Yong K Cho, Mark K Erickson, Michael F Hess, Todd J Sheldon, Vincent E Splett
  • Patent number: 10207116
    Abstract: An intracardiac ventricular pacemaker is configured to operate in in a selected one of an atrial-tracking ventricular pacing mode and a non-atrial tracking ventricular pacing mode. A control circuit of the pacemaker determines at least one motion signal metric from the motion signal, compares the at least one motion signal metric to pacing mode switching criteria; and responsive to the pacing mode switching criteria being satisfied, switches from the selected one of the non-atrial tracking pacing mode and the atrial tracking pacing mode to the other one of the non-atrial tracking pacing mode and the atrial tracking pacing mode for controlling ventricular pacing pulses delivered by the pacemaker.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: February 19, 2019
    Assignee: Medtronic, Inc.
    Inventors: Todd J Sheldon, Yong K Cho, Wade M Demmer, Mark K Erickson, Vincent E Splett
  • Publication number: 20180361160
    Abstract: An intracardiac ventricular pacemaker is configured to operate in in a selected one of an atrial-tracking ventricular pacing mode and a non-atrial tracking ventricular pacing mode. A control circuit of the pacemaker determines at least one motion signal metric from the motion signal, compares the at least one motion signal metric to pacing mode switching criteria, and, responsive to the pacing mode switching criteria being satisfied, switches from the selected one of the non-atrial tracking pacing mode and the atrial tracking pacing mode to the other one of the non-atrial tracking pacing mode and the atrial tracking pacing mode for controlling ventricular pacing pulses delivered by the pacemaker.
    Type: Application
    Filed: June 28, 2018
    Publication date: December 20, 2018
    Inventors: Todd J. SHELDON, Yong K. CHO, Wade M. DEMMER, Mark K. ERICKSON, Vincent E. SPLETT
  • Publication number: 20180161580
    Abstract: An intracardiac pacemaker system is configured to produce physiological atrial event signals by a sensing circuit of a ventricular intracardiac pacemaker and select a first atrial event input as the physiological atrial event signals. The ventricular intracardiac pacemaker detects atrial events from the selected first atrial event input, determines if input switching criteria are met, and switches from the first atrial event input to a second atrial event input in response to the input switching criteria being met. The second atrial event input includes broadcast atrial event signals produced by a second implantable medical device and received by the ventricular intracardiac pacemaker.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 14, 2018
    Inventors: Wade M. Demmer, Yong K. Cho, Mark K. Erickson, Todd J. Sheldon
  • Publication number: 20180154154
    Abstract: An intracardiac ventricular pacemaker is configured to operate in in a selected one of an atrial-tracking ventricular pacing mode and a non-atrial tracking ventricular pacing mode. A control circuit of the pacemaker determines at least one motion signal metric from the motion signal, compares the at least one motion signal metric to pacing mode switching criteria; and responsive to the pacing mode switching criteria being satisfied, switches from the selected one of the non-atrial tracking pacing mode and the atrial tracking pacing mode to the other one of the non-atrial tracking pacing mode and the atrial tracking pacing mode for controlling ventricular pacing pulses delivered by the pacemaker.
    Type: Application
    Filed: December 1, 2016
    Publication date: June 7, 2018
    Inventors: Todd J Sheldon, Yong K Cho, Wade M Demmer, Mark K Erickson, Vincent E Splett
  • Publication number: 20180117337
    Abstract: An intracardiac ventricular pacemaker having a motion sensor is configured to produce a motion signal including an atrial systolic event and at least one ventricular diastolic event. The pacemaker is configured to set an atrial refractory period, detect a change in a ventricular diastolic event metric and adjust the atrial refractory period in response to detecting the change. The pacemaker sets set an atrioventricular pacing interval in response to detecting the atrial systolic event from the motion signal after expiration of the atrial refractory period.
    Type: Application
    Filed: November 3, 2016
    Publication date: May 3, 2018
    Inventors: Wade M Demmer, Yong K Cho, Mark K Erickson, Michael F Hess, Todd J Sheldon, Vincent E Splett
  • Publication number: 20180085588
    Abstract: An intracardiac ventricular pacemaker having a motion sensor is configured to produce a motion signal including an atrial systolic event and a ventricular diastolic event indicating a passive ventricular filling phase, set a detection threshold to a first amplitude during an expected time interval of the ventricular diastolic event and to a second amplitude lower than the first amplitude after an expected time interval of the ventricular diastolic event. The pacemaker is configured to detect the atrial systolic event in response to the motion signal crossing the detection threshold and set an atrioventricular pacing interval in response to detecting the atrial systolic event.
    Type: Application
    Filed: September 29, 2016
    Publication date: March 29, 2018
    Inventors: Vincent E Splett, Todd J Sheldon, Yong K Cho, Wade M Demmer, Mark K Erickson
  • Publication number: 20180085589
    Abstract: An intracardiac ventricular pacemaker is configured to detect a ventricular diastolic event from a motion signal received by a pacemaker control circuit from a motion sensor. The control circuit starts an atrial refractory period having an expiration time set based on a time of the detection of the ventricular diastolic event. The control circuit detects an atrial systolic event from the motion signal after expiration of the atrial refractory period and controls a pulse generator of the pacemaker to deliver a pacing pulse to a ventricle of a patient's heart at a first atrioventricular pacing time interval after the atrial systolic event detection.
    Type: Application
    Filed: September 29, 2016
    Publication date: March 29, 2018
    Inventors: Vincent E. Splett, Todd J. Sheldon, Yong K. Cho, Wade M. Demmer, Mark K. Erickson
  • Publication number: 20170296835
    Abstract: Implantable medical systems enter an exposure mode of operation, either manually via a down linked programming instruction or by automatic detection by the implantable system of exposure to a magnetic disturbance. A controller then determines the appropriate exposure mode by considering various pieces of information including the device type including whether the device has defibrillation capability, pre-exposure mode of therapy including which chambers have been paced, and pre-exposure cardiac activity that is either intrinsic or paced rates. Additional considerations may include determining whether a sensed rate during the exposure mode is physiologic or artificially produced by the magnetic disturbance. When the sensed rate is physiologic, then the controller uses the sensed rate to trigger pacing and otherwise uses asynchronous pacing at a fixed rate.
    Type: Application
    Filed: April 14, 2017
    Publication date: October 19, 2017
    Inventors: Hyun J. Yoon, Wade M. Demmer, Matthew J. Hoffman, Robert A. Betzold, Jonathan D. Edmonson, Michael L. Ellingson, Mark K. Erickson, Ben E. Herberg, Juliana E. Pronovici, James D. Reinke, Todd J. Sheldon, Paul R. Solheim
  • Publication number: 20170028194
    Abstract: An implantable medical device having a housing that encloses a pulse generator and a sensing module includes a housing-based cathode electrode electrically coupled to the pulse generator and to the sensing module. A sensing extension extending from the housing proximal end includes an anode electrode electrically coupled to the sensing module for sensing cardiac electrical signals. The sensing extension includes a flotation member that causes the sensing extension to extend away from the housing along a direction of flowing blood when the implantable medical device is deployed within a cardiovascular system of a patient.
    Type: Application
    Filed: July 28, 2015
    Publication date: February 2, 2017
    Inventors: Matthew D. Bonner, Mark K. Erickson, Todd J. Sheldon