Patents by Inventor John L. Sommer

John L. Sommer 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: 20140180354
    Abstract: A single-pass pacing lead capable of sensing and pacing both the atria and the ventricles is described. In some examples, the single-pass pacing lead is connected to a DDD pacemaker. In some examples, the single-pass pacing lead comprises four electrodes. In some examples, the lead includes three electrodes configured to be positioned in or near an atrium, e.g., the right atrium, and one electrode configured to be positioned in or near a ventricle, e.g., the left ventricle, when the lead is implanted. In other examples, the lead includes two electrodes configured to be positioned in each of the atrium and ventricle when the lead is implanted. In some examples, one of the electrodes, which is configured to be positioned proximate the coronary sinus ostium when the lead is implanted, comprises a helical element for fixation of the lead to tissue.
    Type: Application
    Filed: March 3, 2014
    Publication date: June 26, 2014
    Inventors: Kenneth M Anderson, John L Sommer
  • Patent number: 8755909
    Abstract: A medical electrical lead having an elongated lead body and a fixation helix extending along a generally helical axis, mounted around the outer circumference of the lead body. The fixation helix has a free end spaced from and extending from the lead body for less than the circumference of the lead body. The lead body includes an additional component which provides a rotation stop extending from the outer circumference of the lead body and provides stop surface generally perpendicular to the axis of the helix.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: June 17, 2014
    Assignee: Medtronic, Inc.
    Inventors: John L Sommer, Gareth Morgan
  • Patent number: 8670824
    Abstract: A single-pass pacing lead capable of sensing and pacing both the atria and the ventricles is described. In some examples, the single-pass pacing lead is connected to a DDD pacemaker. In some examples, the single-pass pacing lead comprises four electrodes. In some examples, the lead includes three electrodes configured to be positioned in or near an atrium, e.g., the right atrium, and one electrode configured to be positioned in or near a ventricle, e.g., the left ventricle, when the lead is implanted. In other examples, the lead includes two electrodes configured to be positioned in each of the atrium and ventricle when the lead is implanted. In some examples, one of the electrodes, which is configured to be positioned proximate the coronary sinus ostium when the lead is implanted, comprises a helical element for fixation of the lead to tissue.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: March 11, 2014
    Assignee: Medtronic, Inc.
    Inventors: Kenneth M. Anderson, John L. Sommer
  • Publication number: 20140046389
    Abstract: A single-pass pacing lead capable of sensing and pacing both the atria and the ventricles is described. In some examples, the single-pass pacing lead is connected to a DDD pacemaker. In some examples, the single-pass pacing lead comprises four electrodes. In some examples, the lead includes three electrodes configured to be positioned in or near an atrium, e.g., the right atrium, and one electrode configured to be positioned in or near a ventricle, e.g., the left ventricle, when the lead is implanted. In other examples, the lead includes two electrodes configured to be positioned in each of the atrium and ventricle when the lead is implanted. In some examples, one of the electrodes, which is configured to be positioned proximate the coronary sinus ostium when the lead is implanted, comprises a helical element for fixation of the lead to tissue.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 13, 2014
    Applicant: Medtronic, Inc.
    Inventors: Kenneth M. Anderson, John L. Sommer
  • Patent number: 8644955
    Abstract: The medical lead delivery device more easily and quickly delivers a lead to or through the coronary vein of a patient's heart. The medical lead delivery device includes an elongated body, a controller, a first and second spring, and a sleeve. The elongated body includes a proximal end and a distal end. The controller is disposed at the proximal end and provides enhanced control of the distal tip of the elongated body.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: February 4, 2014
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, Patrick Senarith
  • Patent number: 8639340
    Abstract: A connector sleeve includes a lumen adapted to receive a medical lead connector wherein a retention element engages a retention edge formed at a distal end of a connector element included on the lead connector. The connector sleeve further includes a contact element adapted to electrically engage the lead connector element within the lumen and an external conductive surface electrically coupled to the contact element and adapted for electrical engagement within the connector bore of an implantable medical device.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: January 28, 2014
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, Douglas S. Hine, Douglas N. Hess
  • Patent number: 8630719
    Abstract: This disclosure describes implantable medical leads that include a lead body and an electrode. A width of the electrode as measured along a longitudinal direction of the lead varies about the perimeter of the lead. The uneven width of the electrode may bias a stimulation field in a particular direction, e.g., a radial or transverse direction relative to the longitudinal axis of the lead. Electrodes with an uneven width may be useful for controlling the direction of propagation of the stimulation field in order to, for example, avoid phrenic nerve stimulation during LV pacing or neck muscle stimulation during vagal neurostimulation.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: January 14, 2014
    Assignee: Medtronic, Inc.
    Inventors: Michael D Eggen, John L Sommer, Michael Ebert, David W Bourn, Gabriela C Molnar
  • Publication number: 20130325094
    Abstract: A medical electrical lead having an elongated lead body and a fixation helix extending along a generally helical axis, mounted around the outer circumference of the lead body. The fixation helix has a free end spaced from and extending from the lead body for less than the circumference of the lead body. The lead body includes an additional component which provides a rotation stop extending from the outer circumference of the lead body and provides stop surface generally perpendicular to the axis of the helix.
    Type: Application
    Filed: March 11, 2013
    Publication date: December 5, 2013
    Applicant: MEDTRONIC, INC.
    Inventors: John L Sommer, Gareth Morgan
  • Patent number: 8538523
    Abstract: A medical system comprises a plurality of electrodes; at least one sensor configured to output at least one signal based on at least one physiological parameter of a patient; and a processor. The processor is configured to control delivery of stimulation to the patient using a plurality of electrode configurations. Each of the electrode configurations comprises at least one of the plurality of electrodes. For each of the electrode configurations, the processor is configured to determine a first response of target tissue to the stimulation based on the signals, and a second response of non-target tissue to the stimulation based on the signals. The processor is also configured to select at least one of the electrode configurations for delivery of stimulation to the patient based on the first and second responses for the electrode configurations. As examples, the target tissue may be a left ventricle or vagus nerve.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 17, 2013
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, David Wayne Bourn, Mark T. Marshall, Michael D. Eggen, Gabriela C. Miyazawa
  • Patent number: 8532733
    Abstract: The medical lead delivery device more easily and quickly delivers a lead to or through the coronary vein of a patient's heart. The medical lead delivery device includes an elongated body, a controller, a first and second spring, and a sleeve. The elongated body includes a proximal end and a distal end. The controller is disposed at the proximal end and provides enhanced control of the distal tip of the elongated body.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: September 10, 2013
    Assignee: Medtronic, Inc.
    Inventors: Ryan Thomas Bauer, Pedro A. Meregotte, John L. Sommer, John B. Horrigan, Patrick P. Senarith, H. Allan Steingisser
  • Patent number: 8509893
    Abstract: Various techniques for delivering atrial pacing and supraventricular stimulation to achieve a desired ventricular rate and/or cardiac output are described. One example method described includes delivering a pacing signal configured to cause an atrial depolarization to a heart of a patient, wherein the atrial depolarization results in an associated refractory period during the cardiac cycle, and delivering a signal to a supraventricular portion of the heart of the patient subsequent to the atrial refractory period and during a ventricular refractory period of the cardiac cycle.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: August 13, 2013
    Assignee: Medtronic, Inc.
    Inventors: Yong-Fu Xiao, John L. Sommer, Scott J. Brabec, Lepeng Zeng, Jon F. Urban
  • Patent number: 8478430
    Abstract: An implantable medical device that includes an elongated body having a proximal end and a distal end, a helical fixation member extending from the distal end of the elongated body, the helical fixation member including a distal tip for affixing the distal end of the elongated body at an implant site, and a tracking member extending from the distal end of the elongated body, through the helical fixation member and outward from the distal tip of the helical fixation member for tracking along an implant pathway during implantation of the implantable medical device.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: July 2, 2013
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, Douglas N. Hess
  • Patent number: 8437856
    Abstract: A lead connector is terminated proximally by a connector pin and includes a circumferential array of connector pads, each connector pad coupled to an electrode via an elongated insulated conductor. A lumen of an adaptor is adapted to engage the lead connector and includes an electrical contact zone formed therein and positioned for coupling with a one of the array of connector pads, when the connector is engaged within the lumen, in order to facilitate electrical connection of a selected electrode corresponding to the one of the array of connector pads.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: May 7, 2013
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, Douglas S. Hine
  • Publication number: 20130046369
    Abstract: This disclosure describes implantable medical leads that include a lead body and an electrode. A width of the electrode as measured along a longitudinal direction of the lead varies about the perimeter of the lead. The uneven width of the electrode may bias a stimulation field in a particular direction, e.g., a radial or transverse direction relative to the longitudinal axis of the lead. Electrodes with an uneven width may be useful for controlling the direction of propagation of the stimulation field in order to, for example, avoid phrenic nerve stimulation during LV pacing or neck muscle stimulation during vagal neurostimulation.
    Type: Application
    Filed: October 22, 2012
    Publication date: February 21, 2013
    Inventors: Michael D. Eggen, John L. Sommer, Michael Ebert, David W. Bourn, Gabriela C. Molnar
  • Publication number: 20130006332
    Abstract: A medical system comprises a plurality of electrodes; at least one sensor configured to output at least one signal based on at least one physiological parameter of a patient; and a processor. The processor is configured to control delivery of stimulation to the patient using a plurality of electrode configurations. Each of the electrode configurations comprises at least one of the plurality of electrodes. For each of the electrode configurations, the processor is configured to determine a first response of target tissue to the stimulation based on the signals, and a second response of non-target tissue to the stimulation based on the signals. The processor is also configured to select at least one of the electrode configurations for delivery of stimulation to the patient based on the first and second responses for the electrode configurations. As examples, the target tissue may be a left ventricle or vagus nerve.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 3, 2013
    Applicant: Medtronics, Inc.
    Inventors: John L. Sommer, David Wayne Bourn, Mark T. Marshall, Michael D. Eggen, Gabriela C. Miyazawa
  • Patent number: 8340783
    Abstract: An implantable lead including a lead body including an outer surface, a proximal end, a distal end, and at least one electrode; an electrically insulating member that extends axially over a first portion of the outer surface of the lead body between the proximal end and distal end, the electrically insulating member defining at least one aperture that exposes a first portion of the at least one electrode when in a first position over the lead body; and a reinforcement member formed at least partially of a different material than the insulating member and coupled to the insulating member, the reinforcement member extending axially over the outer surface of the lead body between the insulating member and proximal end.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: December 25, 2012
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, Kenneth C. Gardeski, Xiaonan Shen, Jon D. Schell
  • Patent number: 8332051
    Abstract: Electrical medical leads having active fixation electrodes, particularly helix electrodes intended to be screwed into body tissue, e.g., the heart, are disclosed having selectively applied insulation to optimize exposed electrode surface area and dispose the exposed electrode surface area toward tissue that is less traumatized by injury caused by screwing in the fixation helix. In a preferred fabrication method, an outer helical surface is masked by contact with a masking tube while a dielectric coating is applied to the inner helical surface of the coil turns of the helix, and the masking tube is removed when the dielectric coating has set. In one variation, at least one aperture is formed through the masking tube sidewall exposing an area of the outer helical surface thereby interrupting the uninsulated outer helical electrode.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: December 11, 2012
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, Daniel C. Sigg, James A. Coles, Jr.
  • Patent number: 8326418
    Abstract: A medical system comprises a plurality of electrodes; at least one sensor configured to output at least one signal based on at least one physiological parameter of a patient; and a processor. The processor is configured to control delivery of stimulation to the patient using a plurality of electrode configurations. Each of the electrode configurations comprises at least one of the plurality of electrodes. For each of the electrode configurations, the processor is configured to determine a first response of target tissue to the stimulation based on the signals, and a second response of non-target tissue to the stimulation based on the signals. The processor is also configured to select at least one of the electrode configurations for delivery of stimulation to the patient based on the first and second responses for the electrode configurations. As examples, the target tissue may be a left ventricle or vagus nerve.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: December 4, 2012
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, David Wayne Bourn, Mark T. Marshall, Michael D. Eggen, Gabriela C. Miyazawa
  • Publication number: 20120283810
    Abstract: An implantable medical device that includes an elongated body having a proximal end and a distal end, a helical fixation member extending from the distal end of the elongated body, the helical fixation member including a distal tip for affixing the distal end of the elongated body at an implant site, and a tracking member extending from the distal end of the elongated body, through the helical fixation member and outward from the distal tip of the helical fixation member for tracking along an implant pathway during implantation of the implantable medical device.
    Type: Application
    Filed: July 19, 2012
    Publication date: November 8, 2012
    Applicant: Medtronic, Inc.
    Inventors: John L. Sommer, Douglas N. Hess
  • Patent number: 8295943
    Abstract: This disclosure describes implantable medical leads that include a lead body and an electrode. A width of the electrode as measured along a longitudinal direction of the lead varies about the perimeter of the lead. The uneven width of the electrode may bias a stimulation field in a particular direction, e.g., a radial or transverse direction relative to the longitudinal axis of the lead. Electrodes with an uneven width may be useful for controlling the direction of propagation of the stimulation field in order to, for example, avoid phrenic nerve stimulation during LV pacing or neck muscle stimulation during vagal neurostimulation.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: October 23, 2012
    Assignee: Medtronic, Inc.
    Inventors: Michael D. Eggen, John L. Sommer, Michael Ebert, David Wayne Bourn, Gabriela C. Miyazawa