Patents Examined by Luther Behringer
  • Patent number: 8244379
    Abstract: Certain aspects of the disclosure pertain to methods and apparatus for providing positive fixation of medical components to a portion of incised pericardial tissue. Accordingly, a resilient member protrudes through an incision in the pericardium and produces a positive biasing force to adjacent pericardial tissue against a side surface of an attached body structure. The resilient member can optionally be compressed during implantation and then relaxed to thereafter provide the positive biasing force. Diverse medical components can thus be safely and reliably chronically deployed into the pericardial space, including without limitation, cardiac sensing/pacing, defibrillation and/or cardioversion electrodes, mechanical and/or metabolic sensors and the like. More than one body structure can be linked to a single medical electrical lead and the medical components can couple within and/or upon a portion of the body structure, the resilient member, and the lead in myriad configurations.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: August 14, 2012
    Assignee: Medtronic, Inc.
    Inventors: Koen Michels, Jean-Luc Jansens, Victor Duysens, Paulus G. Adams, Paulus Van Venrooij, Markus J. C. Lazeroms, Fredric W. Lindemans
  • Patent number: 8214057
    Abstract: Paddle lead electrodes that are capable of performing peripheral nerve stimulation, thereby modulating, controlling and/or reducing neuropathic pain in a patient, that are also surgically implantable, and that will remain fixed in place at the site of implantation when in use are provided. More specifically, one or more embodiments of the electrodes are capable of being surgically implanted underneath a sheath of protective connective tissue that covers electrically excitable tissues and are adapted to electrically stimulate those tissues. Electrodes contemplated by some embodiments are particularly well suited for perineurial implantation. Some embodiments include methods of use associated with the electrodes.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: July 3, 2012
    Inventor: Giancarlo Barolat
  • Patent number: 8200334
    Abstract: Systems and methods are provided for allowing an implantable medical device, such as pacemaker, to properly sense electrophysiological signals and hemodynamic signals within a patient during a magnetic resonance imaging (MRI) procedure. Systems and methods are also provided for allowing the implantable medical device to transmit the sensed data to an external monitoring system during the MRI procedure so that attending medical personnel can closely monitor the health of the patient and the operation of the implantable device during the MRI. These improvements provide the attending personnel with information needed to determine whether the MRI should be suspended in response to induced tachyarrhythmias or other adverse conditions within the patient.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: June 12, 2012
    Assignee: Pacesetter, Inc.
    Inventors: Xiaoyi Min, Gabriel A. Mouchawar
  • Patent number: 8170664
    Abstract: Specific embodiments of the present invention use an implanted sensor, during a period of time, to measure a physiologic property when the patient's heart is not stressed, and when the patient's heart is stressed. A slope is determined, where the slope is indicative of a change in the physiologic property during the period of time. Heart disease is monitored based on a magnitude of the slope. In further embodiments of the present invention, a slope indicative of a change in a physiologic property during a period of time is determined, for each of a plurality of periods of time. Changes in the patient's heart disease are monitored based on changes in the slope.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: May 1, 2012
    Assignee: Pacesetter, Inc.
    Inventors: Yelena Nabutovsky, Kyungmoo Ryu, Taraneh Ghaffari Farazi, Gene A. Bornzin
  • Patent number: 8165667
    Abstract: A medical device detects certain patient activity based on a programmable activity threshold and determines the duration of detected activity. The activity threshold may be optimized by obtaining first and second duration measurements for at least one of a first activity session and second activity session. The first duration measurement is based on the activity threshold, while the second duration measurement is based on actual start and stop of the activity session. An adjustment of the activity threshold is suggested based on a correspondence between the first duration measurement and the second duration measurement of the first activity session, or a correspondence between the first duration measurement and the second duration measurement of the second activity session. One of the first and second activities is non-significant activity expected to be undetected by the device, while the other of the two activities is low-level activity expected to be detected by the device.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: April 24, 2012
    Assignee: Pacesetter, Inc.
    Inventor: Cecilia Qin Xi
  • Patent number: 8160684
    Abstract: A method of detecting a cardiac event in a medical device that includes sensing cardiac signals from a plurality of electrodes forming a first sensing vector and a second sensing vector, and determining whether the sensing of cardiac signals along the first sensing vector and along the second sensing vector is corrupted by noise. If the cardiac signals sensed along both the first sensing vector and the second sensing vector are not corrupted by noise, a determination is made as to whether the cardiac signals sensed along the first sensing vector and along the second sensing vector are one of a first cardiac event and a second cardiac event. The determination of whether the cardiac signals sensed along the first sensing vector and along the second sensing vector are one of a first cardiac event and a second cardiac event is then confirmed.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: April 17, 2012
    Assignee: Medtronic, Inc.
    Inventors: Raja N. Ghanem, Robert W. Stadler, Xusheng Zhang
  • Patent number: 8160716
    Abstract: An apparatus and method for adjusting the performance of an implanted device based on data including contextual information. Contextual information, including operational and performance data concerning the implanted device as well as the patient with the implanted device, is stored by a portable electronic device. In one embodiment, the portable electronic device is adapted for battery operation and includes a personal digital assistant (PDA). The portable electronic device is adapted for use as an interface to conduct wireless communications with the implanted device. In one embodiment, the portable electronic device interfaces with a clinical programmer for use by a physician.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: April 17, 2012
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Bruce H. KenKnight, Eric G. Lovett, Robert J. Sweeney, Scott T. Mazar, Yatheendhar D. Manicka
  • Patent number: 8145300
    Abstract: A biphasic pulse delivery circuit for a defibrillator includes two capacitors, a first one of which is charged and delivers the first phase of the biphasic pulse and a second one of which is charged and delivers the second phase of the biphasic pulse. At least a portion of the charge on the second capacitor is provided by the current flow through the patient during delivery of the first pulse phase. Switches are provided for initiating the first phase, initiating the second phase, and terminating the second phase. In an illustrated circuit a shunt circuit path is provided to at least partially charge the second capacitor from the first capacitor prior to delivery of the second phase of the biphasic pulse. The inventive circuit can be controlled entirely with switching devices that only need to be closed during pulse delivery.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: March 27, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Daniel J. Powers
  • Patent number: 8135470
    Abstract: Techniques are described that allow an implantable device to sense gastric data and activity data from a patient, and estimate the patient's amount of energy consumed and energy expended based on the sensed data. A system provides feedback to the patient, a family member, or a doctor about the patient's energy consumed, energy expended, and net energy. The data may be provided in table or graphical format, and may show daily or weekly energy balance data or may show a trend of the daily or weekly energy data. The patient may receive feedback by an implanted alert module that provides and audio alert or a vibration alert. In addition, data acquired by the system may be used to adjust the patient's stimulation therapy parameters.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: March 13, 2012
    Assignee: Medtronic, Inc.
    Inventors: John G. Keimel, Warren L. Starkebaum, Gary L. Lubben
  • Patent number: 8131370
    Abstract: A method of manufacturing a hermetic lead connector includes fixing an electrically insulating ring between an electrically conducting contact ring and an electrically conducting spacer ring to form a hermetic ring subassembly, and fixing a plurality of the hermetic ring subassemblies in axial alignment to form a hermetic lead connector. The hermetic lead connector includes an open end, an outer surface, and an inner surface defining a lead aperture. The hermetic lead connector provides a hermetic seal between the outer surface and the inner surface.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: March 6, 2012
    Assignee: Medtronic, Inc
    Inventors: Darren A. Janzig, Gerald G. Lindner, Chris J. Paidosh
  • Patent number: 8126550
    Abstract: During a period of time comprising a plurality of cardiac cycles, a time relationship between ventricular events and atrial detections is established. Based on the relationship, a post-ventricular atrial refractory period is defined. The period includes an absolute atrial refractory period and a segmented relative atrial refractory period, wherein the segmented relative atrial refractory period includes at least one blanking window during which atrial detections of ventricular events have or are likely to occur.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: February 28, 2012
    Assignee: Pacesetter, Inc.
    Inventors: George E. Eisinger, Jeffery D. Snell, Gene A. Bornzin
  • Patent number: 8116875
    Abstract: New and useful neurostimulation systems are provided that include an implantable pulse generator dimensioned and configured for implantation in the skull of a patient. The implantable pulse generator has an electrode operatively associated with a distal end portion thereof and can be provided with adjustment means, such as an adjustable biasing member or spring arranged between the electrode to the distal end portion of the pulse generator. Also provided are systems involving networked neurostimulators that are configured and adapted to work jointly in accordance with prescribed treatment protocol to effect a desired recovery from brain injury. Such networked neurostimulation systems are particularly advantageous for effecting relatively large and/or relatively distant regions of the brain. Additionally, systems and methods for motor-evoked potential (MEP)-based neuromodulation are provided. Further, AC and/or DC stimulation can be utilized, depending on the precise implementation.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: February 14, 2012
    Assignee: Neuropoint Medical, Inc.
    Inventors: Thomas P. Osypka, Hyoung-Ihl Kim, Yong-Il Shin
  • Patent number: 8108048
    Abstract: Embodiments of the invention relate to optimizing telemetry communication involving one or more medical devices and one or more electrical devices. The telemetry communication is optimized by implementing software and/or one or more additional circuits within at least one medical device and at least one electrical device to provide one or more modes or functions of optimizing transfer of data between the medical device and the at least one electrical device, minimizing interference of the data transfer, and reducing data transfer time and/or preserving electrical energy sources of one or more of the medical device and the at least one electrical device.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: January 31, 2012
    Assignee: Medtronic, Inc.
    Inventor: Javaid Masoud
  • Patent number: 8065014
    Abstract: A method for promoting reinnervation via stimulation of a denervated target tissue, whereby reinnervation of the target tissue by native neurons is enhanced, and whereby reinnervation of the target tissue by foreign neurons is inhibited.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: November 22, 2011
    Assignee: Vanderbilt University
    Inventor: David L. Zealear
  • Patent number: 8055354
    Abstract: An implantable lead comprises a lead body extending from a lead proximal end portion to a lead distal end portion. The lead body includes one or more longitudinally extending lumens. A conductor is received in, and extends along, a lumen. In varying examples, the implantable lead further comprises a tubular electrode co-axial with, and overlying portions of, the lead body. In one example, a lumen wall is sized and shaped to urge an electrically conductive interposer coupled with the conductor toward an inner surface of the electrode. In another example, a ring member is disposed within a lumen and the conductor is drawn and coupled thereto. In yet another example, an electrically conductive connector couples a first and a second conductor via grooves or threads. In a further example, an axial support member couples a distal end electrode and the lead body. Methods associated with the foregoing are also discussed.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: November 8, 2011
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Paul E. Zarembo, Mohan Krishnan, David Durand
  • Patent number: 8055352
    Abstract: This document discusses, among other things, a lead assembly including a lead body, at least one conductor extending through the lead body, and a covering having varied material properties. In an example, the covering is made by forming pieces of material having varied material properties. In another example, the covering is made by varying parameters such as heat or tension during wrapping of a piece of material onto a lead assembly.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: November 8, 2011
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Christopher P. Knapp, Kyle Hoecke, Mohan Krishnan, Rebecca Aron
  • Patent number: 8050763
    Abstract: An implantable medical device is provided for isolating an elongated medical lead from internal device circuitry in the presence of a gradient magnetic or electrical field. The device includes an isolation circuit adapted to operatively connect an internal circuit to the medical lead in a first operative state and to electrically isolate the medical lead from the internal circuit in a second operative state.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: November 1, 2011
    Assignee: Medtronic, Inc.
    Inventors: Lonny V. Cabelka, David E. Manahan, Forrest C. M. Pape, John D. Wahlstrand
  • Patent number: 8046073
    Abstract: A lead-connection system includes a lead and a connector. The lead includes a distal end, a proximal end, a plurality of electrodes disposed at the distal end, a plurality of terminals disposed at the proximal end, and a plurality of conductor wires electrically coupling each of the plurality of electrodes to a different one of the plurality of terminals. The connector defines a port for receiving the proximal end of the lead and a plurality of connector contacts. The number of connector contacts is greater than the number of terminals disposed on the proximal end of the lead. When the connector receives the proximal end of the lead, each of the terminals disposed on the proximal end of the lead makes electrical contact with at least one of the connector contacts of the connector and no two terminals make electrical contact with a same one of the connector contacts.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: October 25, 2011
    Assignee: Boston Scientifique Neuromodulation Corporation
    Inventor: Anne M. Pianca
  • Patent number: 8046079
    Abstract: A telemetry system for data transmission between an implantable medical device and an external system includes a plurality of channels each representing a frequency band within a predetermined frequency range. The data transmission is performed using at least one active channel at any instant. Channel hopping is performed upon detecting an interruption of communication, such that a scan is performed through an array of channels selected from the plurality of channels. If a data frame is not successfully transmitted, it is repeatedly re-transmitted using the current and/or the next active channels until its transmission becomes successful.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: October 25, 2011
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Joseph E. Bange, Earle Roberts, Kenneth F. Cowan, Mehdi Katoozi
  • Patent number: 8000000
    Abstract: A visual prosthesis apparatus and a method for limiting power consumption in a visual prosthesis apparatus. The visual prosthesis apparatus comprises a camera for capturing a video image, a video processing unit associated with the camera, the video processing unit configured to convert the video image to stimulation patterns, and a retinal stimulation system configured to stop stimulating neural tissue in a subject's eye based on the stimulation patterns when an error is detected in a forward telemetry received from the video processing unit.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: August 16, 2011
    Assignee: Second Sight Medical Products, Inc.
    Inventors: Robert J. Greenberg, Kelly H. McClure, Arup Roy