Patents by Inventor Kenneth Heruth

Kenneth Heruth 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: 20080071327
    Abstract: A medical device, such as an implantable medical device (IMD), determines values for one or more metrics that indicate the quality of a patient's sleep, and controls delivery of a therapy based on the sleep quality metric values. For example, the medical device may compare a sleep quality metric value with one or more threshold values, and adjust the therapy based on the comparison. In some embodiments, the medical device adjusts the intensity of therapy based on the comparison, e.g., increases the therapy intensity when the comparison indicates that the patient's sleep quality is poor. In some embodiments, the medical device automatically selects one of a plurality of therapy parameter set available for use in delivering therapy based on a comparison sleep quality metric values associated with respective therapy parameter sets within the plurality of available therapy parameter sets.
    Type: Application
    Filed: March 26, 2007
    Publication date: March 20, 2008
    Inventors: Keith Miesel, Kenneth Heruth, Jonathan Werder, Steve LaPorte, Nina Graves
  • Publication number: 20080071324
    Abstract: Techniques for controlling delivery of a therapy to a patient by a medical device, such as an implantable medical device (IMD), involve a sensitivity analysis of a performance metric. The performance metric may relate to efficacy or side effects of the therapy. For example, the performance metric may comprise a sleep quality metric, an activity level metric, a movement disorder metric for patients with Parkinson's disease, epilepsy, or the like. The sensitivity analysis identifies values of therapy parameters that defines a substantially maximum or minimum value of the performance metric. The identified therapy parameters are a baseline therapy parameter set, and a medical device may control delivery of the therapy based on the baseline therapy parameter set.
    Type: Application
    Filed: March 26, 2007
    Publication date: March 20, 2008
    Applicant: Medtronic, Inc.
    Inventors: Keith Miesel, Kenneth Heruth, Jonathan Werder, Steve LaPorte, Nina Graves
  • Publication number: 20080071326
    Abstract: A system includes one or more sensors and a processor. Each of the sensors generates a signal as a function of at least one physiological parameter of a patient that may discernibly change when the patient is asleep. The processor monitors the physiological parameters, and determines whether the patient is asleep based on the parameters. In some embodiments, the processor determines plurality of sleep metric values, each of which indicates a probability of the patient being asleep, based on each of a plurality of physiological parameters. The processor may average or otherwise combine the plurality of sleep metric values to provide an overall sleep metric value that is compared to a threshold value in order to determine whether the patient is asleep. In addition, an electroencephalogram signal may be used to identify sleep states of the patient.
    Type: Application
    Filed: March 26, 2007
    Publication date: March 20, 2008
    Inventors: Kenneth Heruth, Keith Miesel, Jonathan Werder, Steve LaPorte, Nina Graves
  • Publication number: 20080071150
    Abstract: A device, such as an implantable medical device (IMD), programming device, or other computing device determines when a patient is attempting to sleep. When the device determines that the patient is attempting to sleep, the device determines values for one or more metrics that indicate the quality of a patient's sleep based on at least one physiological parameter of the patient. When the device determines that the patient is not attempting to sleep, the device periodically determines activity levels of the patient. Activity metric values may be determined based on the determined activity levels. A clinician may use sleep quality information and patient activity information presented by a programming device to, for example, evaluate the effectiveness of therapy delivered to the patient by a medical device.
    Type: Application
    Filed: March 26, 2007
    Publication date: March 20, 2008
    Applicant: Medtronic, Inc.
    Inventors: Keith Miesel, Kenneth Heruth, Jonathan Werder, Steve LaPorte, Nina Graves
  • Publication number: 20070293737
    Abstract: A medical device delivers a therapy to a patient. The medical device may periodically determine an activity level of the patient, and associate each determined activity level with a current therapy parameter set. A value of at least one activity metric is determined for each of a plurality of therapy parameter sets based on the activity levels associated with that therapy parameter set. A list of the therapy parameter sets is presented to a user, such as a clinician, for evaluation of the relative efficacy of the therapy parameter sets. The list may be ordered according to the one or more activity metric values to aid in evaluation of the therapy parameter sets. Where values are determined for a plurality of activity metrics, the list may be ordered according to the one of the activity metrics selected by the user.
    Type: Application
    Filed: April 30, 2007
    Publication date: December 20, 2007
    Applicant: Medtronic, Inc.
    Inventors: Kenneth Heruth, Keith Miesel
  • Publication number: 20070282259
    Abstract: A catheter body includes an exit port over which a pressure responsive sleeve is formed that allows material to exit a lumen of the catheter body at a given pressure. In one embodiment, a surface of the sleeve is approximately flush with a surface of the catheter body.
    Type: Application
    Filed: May 29, 2007
    Publication date: December 6, 2007
    Inventors: Mary Morris, Timothy Laske, Kenneth Heruth, Michael Ujhelyi, Jesus Casas, David Olson
  • Publication number: 20070276439
    Abstract: At least one of a medical device, such as an implantable medical device, a monitor, and a computing device determines values for one or more metrics that indicate the quality of a patient's sleep. Sleep efficiency, sleep latency, and time spent in deeper sleep states are example sleep quality metrics for which values may be determined. In some embodiments, determined sleep quality metric values are associated with a current therapy parameter set. In some embodiments, a programming device presents sleep quality information to a user based on determined sleep quality metric values. A clinician may use the sleep quality information presented by the programming device to evaluate the effectiveness of therapy delivered to the patient by the medical device, to adjust the therapy delivered by the medical device, or to prescribe a therapy not delivered by the medical device in order to improve the quality of the patient's sleep.
    Type: Application
    Filed: March 26, 2007
    Publication date: November 29, 2007
    Inventors: Keith Miesel, Kenneth Heruth, Jonathan Werder, Nina Graves, Steve LaPorte
  • Publication number: 20070255118
    Abstract: A medical device, programmer, or other computing device may determine values of one or more activity and, in some embodiments, posture metrics for each therapy parameter set used by the medical device to deliver therapy. The metric values for a parameter set are determined based on signals generated by the sensors when that therapy parameter set was in use. Activity metric values may be associated with a postural category in addition to a therapy parameter set, and may indicate the duration and intensity of activity within one or more postural categories resulting from delivery of therapy according to a therapy parameter set. A posture metric for a therapy parameter set may indicate the fraction of time spent by the patient in various postures when the medical device used a therapy parameter set. The metric values may be used to evaluate the efficacy of the therapy parameter sets.
    Type: Application
    Filed: March 26, 2007
    Publication date: November 1, 2007
    Applicant: Medtronic, Inc.
    Inventors: Keith Miesel, Kenneth Heruth, Gregory Molnar
  • Publication number: 20070250121
    Abstract: A medical device delivers a therapy to a patient. The medical device or another device may periodically determine an activity level of the patient, and associate each determined activity level with a current therapy parameter set. A value of at least one activity metric is determined for each of a plurality of therapy parameter sets based on the activity levels associated with that therapy parameter set. A list of the therapy parameter sets is presented to a user, such as a clinician, for evaluation of the relative efficacy of the therapy parameter sets. The list may be ordered according to the one or more activity metric values to aid in evaluation of the therapy parameter sets. Where values are determined for a plurality of activity metrics, the list may be ordered according to the one of the activity metrics selected by the user.
    Type: Application
    Filed: March 26, 2007
    Publication date: October 25, 2007
    Inventors: Keith Miesel, Kenneth Heruth
  • Publication number: 20070250134
    Abstract: A medical device delivers a therapy to a patient. The medical device or another device may periodically determine an activity level or gait parameter of the patient, and associate each determined level or parameter with a current therapy parameter set. A value of at least one activity metric is determined for each of a plurality of therapy parameter sets based on the activity levels or parameters associated with that therapy parameter set. Whether the patient is currently experiencing or anticipated to experience gait freeze caused by their neurological disorder, such as Parkinson's disease, may also be determined. Gait freeze events may be associated with current therapy parameters and used to determine activity metric values. In some examples, the activity metric associated with certain therapy parameters may be presented to a user.
    Type: Application
    Filed: March 26, 2007
    Publication date: October 25, 2007
    Inventors: Keith Miesel, Kenneth Heruth, Gregory Molnar
  • Publication number: 20070249968
    Abstract: A medical device delivers a therapy to a patient. Posture events are identified, e.g., a posture of the patient is periodically determined and/or posture transitions by the patient are identified, and each determined posture event is associated with a current therapy parameter set. A value of at least one posture metric is determined for each of a plurality of therapy parameter sets based on the posture events associated with that therapy parameter set. A list of the therapy parameter sets is presented to a user, such as a clinician, for evaluation of the relative efficacy of the therapy parameter sets. The list may be ordered according to the one or more posture metric values to aid in evaluation of the therapy parameter sets. Where values are determined for a plurality of posture metrics, the list may be ordered according to the one of the posture metrics selected by the user.
    Type: Application
    Filed: March 26, 2007
    Publication date: October 25, 2007
    Applicant: Medtronic, Inc.
    Inventors: Keith Miesel, Kenneth Heruth
  • Publication number: 20070245318
    Abstract: Techniques that involve application of one or more rules to a “parent” program to generate a plurality of different “child” programs are described. Each of the rules may define a respective electrode configuration modification, and each child program may be a variation of the parent based on a modification of the electrode configuration of the parent according to one of the rules. The systems or devices may generate further generations of child programs from a previous generation child program using the same one or more rules. The child programs may be provided to a user, so that the user may test the efficacy of the new programs, assisting the user in identifying desirable programs. The child programs may be relatively minor variations of the parent program, and the user may “fine tune” a generally desirable parent program by testing the child programs.
    Type: Application
    Filed: April 12, 2006
    Publication date: October 18, 2007
    Applicant: Medtronic, Inc.
    Inventors: Steven Goetz, Donald Johnson, Andrew Houchins, Jeffrey Keacher, Theodore Stone, Kenneth Heruth, Gary King, Roy Testerman
  • Publication number: 20070123758
    Abstract: A device determines values for one or more metrics that indicate the quality of a patient's sleep based on sensed physiological parameter values. Sleep efficiency, sleep latency, and time spent in deeper sleep states are example sleep quality metrics for which values may be determined. The sleep quality metric values may be used, for example, to evaluate the effectiveness of a therapy delivered to the patient by a medical device. In some embodiments, determined sleep quality metric values are automatically associated with the therapy parameter sets according to which the medical device delivered the therapy when the physiological parameter values were sensed, and used to evaluate the effectiveness of the various therapy parameter sets. The medical device may deliver the therapy to treat a non-respiratory neurological disorder, such as epilepsy, a movement disorder, or a psychological disorder. The therapy may be, for example, deep brain stimulation (DBS) therapy.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 31, 2007
    Applicant: Medtronic, Inc.
    Inventors: Keith Miesel, Kenneth Heruth, Jonathan Werder, Steve LaPorte, Nina Graves
  • Publication number: 20070073356
    Abstract: Delivery of peripheral nerve field stimulation (PNFS) in combination with one or more other therapies is described. The other therapy delivered in combination with PNFS may be, for example, a different type of neurostimulation, such as spinal cord stimulation (SCS), or a drug. PNFS and the other therapy may be delivered simultaneously, in an alternating fashion, according to a schedule, and/or selectively, e.g., in response to a request received from a patient or clinician. A combination therapy that includes PNFS may be able to more completely address complex or multifocal pain than would be possible through delivery of either PNFS or other therapies alone. Further, the combination of PNFS with one or more other therapies may reduce the likelihood that neural accommodation will impair the perceived effectiveness PNFS or the other therapies.
    Type: Application
    Filed: June 9, 2006
    Publication date: March 29, 2007
    Inventors: Ethan Rooney, Carl Wahlstrand, Gary King, Thomas Cross, Jeffrey Evanson, Kenneth Heruth, Paul Wacnik
  • Publication number: 20070073357
    Abstract: Delivery of peripheral nerve field stimulation (PNFS) in combination with one or more other therapies is described. The other therapy delivered in combination with PNFS may be, for example, a different type of neurostimulation, such as spinal cord stimulation (SCS), or a drug. PNFS and the other therapy may be delivered simultaneously, in an alternating fashion, according to a schedule, and/or selectively, e.g., in response to a request received from a patient or clinician. A combination therapy that includes PNFS may be able to more completely address complex or multifocal pain than would be possible through delivery of either PNFS or other therapies alone. Further, the combination of PNFS with one or more other therapies may reduce the likelihood that neural accommodation will impair the perceived effectiveness PNFS or the other therapies.
    Type: Application
    Filed: June 9, 2006
    Publication date: March 29, 2007
    Applicant: Medtronic, Inc.
    Inventors: Ethan Rooney, Carl Wahlstrand, Gary King, Thomas Cross, Jeffrey Evanson, Kenneth Heruth, Paul Wacnik
  • Publication number: 20070039625
    Abstract: Systems and methods for coordinated delivery of a therapeutic agent and low (less than about 20 Hz) and high (greater than about 50 Hz) frequency stimulation therapy are described. The systems include a control unit for coordinating therapy delivery between an infusion device and a pulse generator, such that a therapeutic agent is administered at a predetermined time relative to application of either low frequency or high frequency stimulation. For example, the control unit may instruct the infusion device to deliver therapeutic agent at a predetermined time prior to delivery of low frequency stimulation. Systems that include more than one infusion device or an infusion pump capable of delivering more than one therapeutic agent are also described.
    Type: Application
    Filed: March 14, 2006
    Publication date: February 22, 2007
    Applicant: MEDTRONIC, INC.
    Inventors: Kenneth Heruth, Mark Lent, Ruchika Singhal, Michael Schendel
  • Publication number: 20070021802
    Abstract: Enhanced therapies for treating pain are described. The therapies include subcutaneous stimulation of tissue in proximity to a source of pain at low frequencies (less than about 20 Hz) and high frequencies (greater than about 50 Hz). The therapies further include administering a pain treating agent at a predetermined time relative to application of the high or low frequency stimulation. Delivery of the pain treating agent via an implantable infusion system is described. Coordination of output of an infusion device and a pulse generator to provide coordinated therapy is also discussed.
    Type: Application
    Filed: March 14, 2006
    Publication date: January 25, 2007
    Applicant: MEDTRONIC, INC.
    Inventors: Kenneth Heruth, Mark Lent, Ruchika Singhal, Michael Schendel
  • Publication number: 20070021801
    Abstract: Enhanced therapies for treating pain are described. The therapies include subcutaneous stimulation of tissue in proximity to a source of pain at low frequencies (less than about 20 Hz) and high frequencies (greater than about 50 Hz). The subcutaneous stimulation may be applied in proximity to a structure in the back, such as discs, facet joints, nerve roots or ganglions, sympathetic chain, ligaments, muscles, and the like. Subcutaneous stimulation at high and low frequencies applied in combination with epidural stimulation is also described.
    Type: Application
    Filed: March 14, 2006
    Publication date: January 25, 2007
    Applicant: MEDTRONIC, INC.
    Inventors: Kenneth Heruth, Mark Lent, Ruchika Singhal, Michael Schendel, Gary King
  • Publication number: 20070015976
    Abstract: Values of a non-polysomnographic (non-PSG) physiological parameter set may be correlated to polysomnographically (PSG) determined sleep states. The correlated values of the non-PSG parameter set and sleep states may be analyzed, and a relationship between the values and sleep states may be determined. The relationship may allow determination of sleep states for any given patient based on values of the non-PSG physiological parameter set for the patient. The non-PSG physiological parameter set does not include physiological parameters typically required for PSG, such as brain electrical activity (EEG), eye movement (EOG), and jaw or neck muscular activity or tone (EMG). Medical devices, such as implantable medical devices (IMDs) that would generally be unable to monitor such physiological parameters, may apply the relationship to values of the non-PSG physiological parameter set for a patient to identify sleep states of the patient.
    Type: Application
    Filed: April 25, 2006
    Publication date: January 18, 2007
    Applicant: Medtronic, Inc.
    Inventors: Keith Miesel, Kenneth Heruth
  • Publication number: 20060259099
    Abstract: The disclosure is directed to techniques for shifting between two electrode combinations. An amplitude of a first electrode combination is incrementally decreased while an amplitude of a second, or subsequent, electrode combination is concurrently incrementally increased. Alternatively, an amplitude of the first electrode combination is maintained at a target amplitude level while the amplitude of the second electrode combination is incrementally increased. The stimulation pulses of the electrode combinations are delivered to the patient interleaved in time. In this manner, the invention provides for a smooth, gradual shift from a first electrode combination to a second electrode combination, allowing the patient to maintain a continual perception of stimulation. The shifting techniques described herein may be used during programming to shift between different electrode combinations to find an efficacious electrode combination.
    Type: Application
    Filed: April 10, 2006
    Publication date: November 16, 2006
    Applicant: Medtronic, Inc.
    Inventors: Steven Goetz, Andrew Houchins, Jeffrey Keacher, Gary King, Kenneth Heruth, Roy Testerman, Michael Lee, Nathan Torgerson, Joseph Nolan