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: 20120232606
    Abstract: An apparatus and method to discriminate cardiac events by sensing atrial and ventricular depolarizations having associated refractory periods thereafter. A fast ventricular rate is detected in response to the sensed ventricular depolarizations. Responsive to detecting the fast ventricular rate, at least one stimulus pulse is delivered to atrial tissue within the associated refractory period of the ventricle but outside of an associated refractory period of the stimulated atrial tissue. A ventricular response to the atrial tissue stimulus pulse is determined, and the cardiac event is discriminated based on the ventricular response to the atrial tissue stimulus pulse.
    Type: Application
    Filed: January 25, 2012
    Publication date: September 13, 2012
    Inventors: Yong-Fu Xiao, Jeffrey M. Gillberg, Paul J. DeGroot, Eduardo N. Warman, Scott J. Brabec, John L. Sommer, Jon F. Urban, Lepeng Zeng
  • Publication number: 20120232605
    Abstract: An apparatus and method to discriminate cardiac events by sensing atrial and ventricular depolarizations having associated refractory periods thereafter. A fast ventricular rate is detected in response to the sensed ventricular depolarizations. Responsive to detecting the fast ventricular rate, at least one stimulus pulse is delivered to atrial tissue within the associated refractory period of the ventricle but outside of an associated refractory period of the stimulated atrial tissue. A ventricular response to the atrial tissue stimulus pulse is determined, and the cardiac event is discriminated based on the ventricular response to the atrial tissue stimulus pulse.
    Type: Application
    Filed: January 25, 2012
    Publication date: September 13, 2012
    Inventors: Yong-Fu Xiao, Jeffrey M. Gillberg, Paul J. DeGroot, Eduardo N. Warman, Scott J. Brabec, John L. Sommer, Jon F. Urban, Lepeng Zeng
  • Patent number: 8233994
    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: April 8, 2009
    Date of Patent: July 31, 2012
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, Douglas N. Hess
  • Patent number: 8219213
    Abstract: An implantable medical lead configured for active fixation in the vasculature of a patient includes an elongated lead body having a central lumen and a distal tip. Disposed within the central lumen are a fixation helix and an elongated member, such as a lead coil, coupled to the fixation helix. The elongated member is adapted to rotate the fixation helix, thereby causing it to advance or retract within the central lumen of the lead body. The lead body includes a window along a portion of its length through which the fixation helix may be affixed to a blood vessel of the patient's vasculature.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: July 10, 2012
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, Douglas N. Hess
  • Patent number: 8214045
    Abstract: A lead implant system includes a lead coupling device, which is configured to couple a lead during an implant procedure, in communication with a medical device and an implantable medical device, which is contained within a package that includes an electrical interface for electrical coupling with an electrical contact of the implantable medical device. The electrical interface facilitates coupling of the packaged medical device to an electrical contact of another medical device, which is located outside the package. If the electrical contact of the packaged device is mounted within a bore of the device, then the connector structure allows for passage of a sterilizing gas into the connector bore, and past the connector contact, within the bore.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: July 3, 2012
    Assignee: Medtronic, Inc.
    Inventors: Christine G. Kronich, John L. Sommer, William K. Wenger, Michael D. Eggen, Gerald Jordan Montgomery, Joseph A. DuPay
  • Patent number: 8209032
    Abstract: An elongate medical electrical lead conductor includes a layer of hydrolytically stable polyimide formed thereover.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: June 26, 2012
    Assignee: Medtronic, Inc.
    Inventors: Michael J Ebert, John L Sommer, Richard D Ries, Jordan D Honeck, Pedro A Meregotte, Kenneth R Brennen
  • Publication number: 20120136422
    Abstract: An implantable medical device that includes a lead body extending from a proximal end to a distal end, a plurality of conductors extending between the proximal end and the distal end of the lead body, and an insulative layer formed of a hydrolytically stable polyimide material surrounding the plurality of conductors. In one embodiment, the hydrolytically stable polyimide material is an SI polyimide material.
    Type: Application
    Filed: February 6, 2012
    Publication date: May 31, 2012
    Applicant: Medtronic, Inc.
    Inventors: Michael J. Ebert, John L. Sommer, Jordan D. Honeck, Richard D. Ries, Pedro A. Meregotte, Kenneth R. Brennen
  • Publication number: 20120130466
    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: Application
    Filed: November 21, 2011
    Publication date: May 24, 2012
    Applicant: Medtronic, Inc.
    Inventors: John L. Sommer, Douglas S. Hine
  • Publication number: 20120109237
    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: Application
    Filed: October 27, 2010
    Publication date: May 3, 2012
    Applicant: MEDTRONIC, INC.
    Inventors: Yong-Fu Xiao, John L. Sommer, Scott J. Brabec, Lepeng Zeng, Jon F. Urban
  • Patent number: 8103358
    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: January 24, 2012
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, Patrick Senarith
  • Patent number: 8065008
    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: August 21, 2003
    Date of Patent: November 22, 2011
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, Douglas S. Hine
  • Patent number: 8043126
    Abstract: An improved medical lead assembly and method of use is provided. The lead assembly includes a lead body, and a spring member positioned adjacent to the lead body. The spring member may be deployed a selectable amount to maintain the lead body in a fixed location within a patient's body. The spring member may be an expandable coil, a mesh structure that is similar to a stent, or any other similar device that may be positioned in a low-profile state during a lead implant procedure. After the lead is positioned at a target destination, the spring member may be deployed an amount that is selected based on the characteristics of the surrounding tissue, including vessel size. According to one aspect of the invention, the lead assembly may provide means for facilitating chronic lead extraction.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: October 25, 2011
    Assignee: Medtronic, Inc.
    Inventors: Vicki L. Bjorklund, John L. Sommer, Douglas S. Hine, Charles J. Love, Douglas N. Hess, Nicolaas M. Lokhoff
  • Patent number: 8019420
    Abstract: A lead connector including a connector element array is fitted into a selected adaptor from a plurality of adaptors to electrically couple one or more elements of the connector element array, corresponding to one or more selected electrodes from an array of lead electrodes, to one or more contact zones of the selected adaptor in order to facilitate electrical connection with an implantable medical device.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: September 13, 2011
    Assignee: Medtronic, Inc.
    Inventors: Douglas S. Hine, John L. Sommer, John Gurley
  • Patent number: 7953495
    Abstract: A lead coupling device adapted for coupling to a lead and methods for using the coupling devices are provided. The coupling device includes a housing assembly having a proximal opening and a distal opening. The coupling device also has a lead receiving channel that is disposed between the two openings to receive a lead therethrough. Various electronics components may also included in the coupling device that enable operations such as sensing, delivery of electrical energy and wireless communication between the coupling device and an external device.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: May 31, 2011
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, Michael D. Eggen, Joseph A. DuPay
  • Publication number: 20110123593
    Abstract: A self-fixating scaffold delivers therapeutic material to tissue for treating various diseases/conditions. A scaffold holds the therapeutic material and is implanted into the tissue. A fixation element anchors the scaffold in the tissue making the scaffold less likely to become dislodged.
    Type: Application
    Filed: January 18, 2011
    Publication date: May 26, 2011
    Applicant: Medtronic, Inc.
    Inventors: Daniel C. Sigg, Prasanga D. Hiniduma-Lokuge, Vinod Sharma, John L. Sommer
  • Patent number: 7904178
    Abstract: An elongate body of a medical electrical lead includes at least one conductor formed into a coil that includes a first portion and a second portion, wherein the first portion extends within an outer insulation sheath and the second portion extends outside the outer insulation sheath to be exposed to an environment external to the lead body as an energy dissipating shunt.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: March 8, 2011
    Assignee: Medtronic, Inc.
    Inventors: Terrell M. Williams, Michael Jay Ebert, Jordon D. Honeck, Richard Dean Ries, John L. Sommer, Pedro A. Meregotte
  • Patent number: 7881806
    Abstract: The medical lead delivery device combines features of a guidewire and a stylet in order to more easily and quickly deliver 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 1, 2011
    Assignee: Medtronic, Inc.
    Inventors: John B. Horrigan, Ryan T. Bauer, Patrick Senarith, H. Allan Steingisser, Pedro A. Mersgotte, John L. Sommer
  • Publication number: 20100331938
    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: Application
    Filed: June 29, 2010
    Publication date: December 30, 2010
    Inventors: John L. Sommer, Kenneth C. Gardeski, Xiaonan Shen, Jon D. Schell
  • Patent number: 7860580
    Abstract: A medical electrical lead includes a proximal insulation segment, a distal insulation segment, a conductor extending within the proximal and distal segments, and an electrode coupled to the conductor and disposed in proximity to a distal end of the distal insulation segment. A fixation element of the lead is coupled to a distal end of the proximal insulation segment and includes a wire wound in a helix, which extends distally from the proximal segment, over the distal insulation segment.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: December 28, 2010
    Assignee: Medtronic, Inc.
    Inventors: Jeffrey G. Falk, Douglas N. Hess, John L. Sommer
  • Patent number: 7846095
    Abstract: The invention is directed to lead configurations for sensors that allow for less invasive sensor replacement procedures. In one configuration, a sensor lead assembly includes an outer lead body and an inner lead including a sensor such as an electrochemical glucose sensor. The inner lead can be positioned in an inner conduit of the outer lead body. The outer lead body may be substantially permanently implanted in the patient, and the inner lead can be implanted through the inner conduit of the outer lead body. Once the sensor of the inner lead has worn out or otherwise exhausted its useful life, the inner lead can be removed, and a new inner lead can be implanted in place of the old inner lead.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: December 7, 2010
    Assignee: Medtronic, Inc.
    Inventors: Mark A. Christopherson, Nancy Perry Pool, John L. Sommer, Eric Bonde