Physical Activity Patents (Class 607/19)
  • Patent number: 11400303
    Abstract: A wearable medical includes a walking detector module with a motion sensor that is configured to detect when the patient is walking or running. In embodiments, a parameter (referred to herein as a “Bouncy” parameter) is determined from Y-axis acceleration measurements. In some embodiments, the Bouncy parameter is a measurement of the AC component of the Y-axis accelerometer signal. This detection can be used by the medical device to determine how and/or whether to provide treatment to the patient wearing the medical device. For example, when used in a WCD, the walking detector can prevent “false alarms” because a walking patient is generally conscious and not in need of a shock.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: August 2, 2022
    Assignee: West Affum Holdings Corp.
    Inventors: Jaeho Kim, Joseph L. Sullivan, Robert P. Marx
  • Patent number: 11090497
    Abstract: Embodiments described herein relate to implantable medical devices (IMDs) and methods for use therewith. Such a method includes using an accelerometer of an IMD (e.g., a leadless pacemaker) to produce one or more accelerometer outputs indicative of the orientation of the IMD. The method can also include controlling communication pulse parameter(s) of one or more communication pulses (produced by pulse generator(s)) based on accelerometer output(s) indicative of the orientation of the IMD. The communication pulse parameter(s) that is/are controlled can be, e.g., communication pulse amplitude, communication pulse width, communication pulse timing, and/or communication pulse morphology. Such embodiments can be used to improve conductive communications between IMDs whose orientation relative to one another may change over time, e.g., due to changes in posture and/or due to cardiac motion over a cardiac cycle.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: August 17, 2021
    Assignee: Pacesetter, Inc.
    Inventors: Xiaoyi Min, David Ligon, Weiqun Yang, Shawn Chen, Matthew G. Fishler
  • Patent number: 10973464
    Abstract: Device and method for removing artifacts in physiological measurements. The method can comprise the steps of obtaining a physiological signal of a user; obtaining corresponding motion data representative of motion of the user; determining whether the physiological signal is distorted; and if the physiological signal is determined to be distorted, identifying a noise reference and filtering the physiological signal with the noise reference.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: April 13, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Shiyun Shao, Kittipong Kasamsook
  • Patent number: 10820808
    Abstract: A device and method for analyzing of a disturbed pattern of pulse wave front results in a non-invasive, real-time diagnostic tool of arterial vascular performance on both a global and regional scale. The device provides a single number quantifying how well the arterial tree as a whole is coupled to receive and distribute a stroke volume of a single heartbeat. Changing heart rate, contractility, volume status, and afterload will change stroke volume and ejection time. Different vasculatures with different properties (e.g., size and intrinsic stiffness) will be best matched for different stroke volumes and ejection times to provide optimal coupling. The device will allow finding the optimal set of parameters for individual patient.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: November 3, 2020
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventor: Viachaslau Barodka
  • Patent number: 10743775
    Abstract: A device for measuring a ventricular-arterial coupling of a subject includes first and second inputs. The first input receives signals from a plurality of electrocardiogram sensors that are coupled to the subject at a plurality of first locations. The second input receives signals from a plurality of photoplethysmogram sensors that are coupled to the subject at a plurality of second locations. The second locations are selected from the group consisting of a head of the subject, an arm of the subject, and a leg of the subject. The signals received from the electrocardiogram sensors and the signals received from the photoplethysmogram sensors are received simultaneously. The device also includes a monitor configured to display the signals from the electrocardiogram sensors and the signals from the photoplethysmogram sensors.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: August 18, 2020
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Viachaslau Barodka, Yurie Obata
  • Patent number: 10702190
    Abstract: Various exemplary embodiments provide an electronic device configured to include one or more sensor modules, at least one memory, a display, and a first processor or second processor operatively coupled to the one or more sensor modules, the at least one memory, and/or the display, wherein the first processor is configured to acquire sensor data from at least one sensor module among the one or more sensor modules, calculate a difference between at least two data points in the acquired sensor data, determine user's activity information based on at least one of a period of the sensor data, a magnitude of the difference, and a change amount of the difference, and deliver the user's activity information to the second processor, and wherein the second processor is configured to display, on the display, a user interface related to the user's activity information delivered from the first processor. Other exemplary embodiments are also possible.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: July 7, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yanggu Jo, Seungbeom Ryu, Byungjun Lee, Wonhee Lee, Jeong Gwan Kang, Taeho Kim, Jeong-Min Park
  • Patent number: 10674940
    Abstract: A notification system is provided that provides notification of patient events such as movement and/or incontinence. The notification system provides for a plurality of different pressure sensor pads as well as an incontinence pad to be used in association with a single monitor.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: June 9, 2020
    Assignee: Parasol Medical LLC
    Inventors: Michael D. Kilcran, Patrick E. Eddy, Jacob D. Stephens, Lucas W. Stephens, Daniel P. Kilcran
  • Patent number: 10569088
    Abstract: This disclosure relates to methods, devices, and systems for delivering and adjusting stimulation therapy. In one example, a method comprising delivering, by a stimulation electrode, electrical stimulation as a candidate therapy to a patient according to a set of candidate therapy parameters, the stimulation electrode located in proximity to the dorsal column of a patient; sensing, by a sensing electrode, an electrically evoked compound action potential (eECAP) signal in response to the delivery of the electrical stimulation; and classifying, by a processor, the sensed eECAP signal generated in response to the application of the candidate therapy relative to an eECAP baseline is disclosed.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: February 25, 2020
    Assignee: Medtronic, Inc.
    Inventors: David A. Dinsmoor, Timothy J. Denison, Xin Su
  • Patent number: 10512780
    Abstract: The present invention is generally directed to methods, systems, and computer program products for coordinating musculoskeletal and cardiovascular hemodynamics. In some embodiments, a heart pacing signal causes heart contractions to occur with an essentially constant time relationship with respect to rhythmic musculoskeletal activity. In other embodiments, prompts (e.g., audio, graphical, etc.) are provided to a user to assist them in timing of their rhythmic musculoskeletal activity relative to timing of their cardiovascular cycle. In further embodiments, accurately indicating a heart condition during a cardiac stress test is increased.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: December 24, 2019
    Assignee: Pulson, Inc.
    Inventors: Jeffery L. Bleich, Paul Mannheimer, Darin Howard Buxbaum
  • Patent number: 10512781
    Abstract: The present disclosure relates to cardiac evoked response detection and, more particularly, reducing polarization effects in order to detect an evoked response following delivery of a stimulation pulse. An implantable medical device (IMD) is configured to deliver a ventricular pacing pulse. A signal is sensed in response to the ventricular pacing stimulus. A window is placed over the sensed signal to obtain a set of data from the signal after a paced event. The set of data extracted from the sensed signal comprises a maximum amplitude, a maximum time associated with the maximum amplitude, a minimum amplitude, and a minimum time associated with the minimum amplitude. Responsive to processing the extracted data, the window is delayed to avoid polarization effects. A determination is then made as to whether the ventricular pacing stimulus is capturing the paced ventricle in response to determining whether the maximum time is greater than the minimum time.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: December 24, 2019
    Assignee: Medtronic, Inc.
    Inventors: Robert W. Stadler, Subham Ghosh
  • Patent number: 10471264
    Abstract: Techniques for detecting a value of a sensed patient parameter, and automatically delivering therapy to a patient according to therapy information previously associated with the detected value, are described. In exemplary embodiments, a medical device receives a therapy adjustment from the patient. In response to the adjustment, the medical device associates a sensed value of a patient parameter with therapy information determined based on the adjustment. Whenever the parameter value is subsequently detected, the medical device delivers therapy according to the associated therapy information. In this manner, the medical device may “learn” to automatically adjust therapy in the manner desired by the patient as the sensed parameter of the patient changes. Exemplary patient parameters that may be sensed for performance of the described techniques include posture, activity, heart rate, electromyography (EMG), an electroencephalogram (EEG), an electrocardiogram (ECG), temperature, respiration rate, and pH.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: November 12, 2019
    Assignee: Medtronic, Inc.
    Inventors: Duane Bourget, Keith A. Miesel
  • Patent number: 10463263
    Abstract: A multifunctional invasive cardiovascular diagnostic measurement host is disclosed that interfaces a variety of sensor devices, such as guide wire-mounted pressure sensors, flow sensors, temperature sensors, etc, and provides a multi-Mode graphical user interface providing a plurality of displays in accordance with the various types of sensors and measurements rendered by the sensors.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: November 5, 2019
    Assignee: VOLCANO CORPORATION
    Inventors: Howard David Alpert, Paul Michael Hoseit
  • Patent number: 10448829
    Abstract: There is provided a biological rhythm disturbance degree calculating device, including a physiological index time series data acquiring unit which acquires time series data of a physiological index calculated from a biomedical signal of a subject, a calculation period deciding unit which decides a calculation period which is a time length corresponding to substantially a half of a cycle with which daily-life physiological index time series data calculated from the biomedical signal measured in daily life fluctuates, a calculating unit which calculates, during the calculation period, a phase shift amount between inspected physiological index time series data calculated from the biomedical signal measured during an inspection and the daily-life physiological index time series data, and a disturbance degree deciding unit which decides a disturbance degree of a biological rhythm during the inspection of the subject based on the phase shift amount.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: October 22, 2019
    Assignee: Sony Corporation
    Inventor: Naoya Sazuka
  • Patent number: 10413732
    Abstract: An implantable neurostimulator-implemented method for managing tachyarrhythmias upon a patient's awakening from sleep through vagus nerve stimulation is provided. An implantable neurostimulator, including a pulse generator, is configured to deliver electrical therapeutic stimulation in a manner that results in creation and propagation (in both afferent and efferent directions) of action potentials within neuronal fibers comprising the cervical vagus nerve of a patient. Operating modes of the pulse generator are stored. An enhanced dose of the electrical therapeutic stimulation is parametrically defined and tuned to prevent initiation of or disrupt tachyarrhythmia upon the patient's awakening from a sleep state through at least one of continuously-cycling, intermittent and periodic ON-OFF cycles of electrical pulses. Other operating modes, including a maintenance dose and a restorative dose are defined.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: September 17, 2019
    Assignee: LivaNova USA, Inc.
    Inventors: Imad Libbus, Badri Amurthur, Bruce H. KenKnight
  • Patent number: 10413203
    Abstract: Some method examples may include pacing a heart with cardiac paces, sensing a physiological signal for use in detecting pace-induced phrenic nerve stimulation, performing a baseline level determination process to identify a baseline level for the sensed physiological signal, and detecting pace-induced phrenic nerve stimulation using the sensed physiological signal and the calculated baseline level. Detecting pace-induced phrenic nerve stimulation may include sampling the sensed physiological signal during each of a plurality of cardiac cycles to provide sampled signals and calculating the baseline level for the physiological signal using the sampled signals. Sampling the sensed physiological signal may include sampling the signal during a time window defined using a pace time with each of the cardiac cycles to avoid cardiac components and phrenic nerve stimulation components in the sampled signal.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: September 17, 2019
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Sunipa Saha, Yanting Dong, Holly Rockweiler
  • Patent number: 10398358
    Abstract: A wrist-worn athletic performance monitoring system, including an analysis processor, configured to execute an activity recognition processes to recognize a sport or activity being performed by an athlete, and a sampling rate processor, configured to determine a sampling rate at which an analysis processor is to sample data from an accelerometer. The sampling rate processor may determine the sampling rate such that the analysis processor uses a low amount of electrical energy while still being able to carry out an activity classification process to classify an activity being performed.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: September 3, 2019
    Assignee: NIKE, Inc.
    Inventors: Manan Goel, Kate Cummings
  • Patent number: 10350426
    Abstract: An implantable medical device system includes a pacemaker and an implantable cardioverter defibrillator (ICD). The pacemaker is configured to confirm a hemodynamically unstable rhythm based on an activity metric determined from an activity sensor signal after detecting a ventricular tachyarrhythmia and withhold anti-tachycardia pacing (ATP) pulses in response to confirming the hemodynamically unstable rhythm. The pacemaker may deliver ATP when a hemodynamically unstable rhythm is not confirmed based on the activity metric. The ICD is configured to detect the ATP and withhold a shock therapy in response to detecting the ATP in some examples.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: July 16, 2019
    Assignee: Medtronic, Inc.
    Inventors: Todd J. Sheldon, Wade M. Demmer, Teresa A. Whitman
  • Patent number: 10342482
    Abstract: Hat, helmet, and other headgear apparatus includes dry electrophysiological electrodes and, optionally, other physiological and/or environmental sensors to measure signals such as ECG from the head of a subject. Methods of use of such apparatus to provide fitness, health, or other measured or derived, estimated, or predicted metrics are also disclosed.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 9, 2019
    Assignee: Orbital Research Inc.
    Inventors: Frederick J. Lisy, Anthony Opperman, David D. Dashevsky
  • Patent number: 10197520
    Abstract: Disclosed is an integrated circuit comprising a substrate (10) carrying a plurality of circuit elements; a metallization stack (12, 14, 16) interconnecting said circuit elements, said metallization stack comprising a patterned upper metallization layer comprising a first metal portion (20) and a second metal portion (21); a passivation stack (24, 26, 28) covering the metallization stack; a gas sensor including a sensing material portion (32, 74) on the passivation stack; a first conductive portion (38) extending through the passivation stack connecting a first region of the sensing material portion to the first metal portion; and a second conductive portion (40) extending through the passivation stack connecting a second region of the sensing material portion to the second metal portion. A method of manufacturing such an IC is also disclosed.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: February 5, 2019
    Assignee: ams International AG
    Inventors: Matthias Merz, Aurelie Humbert, Roel Daamen, David Tio Castro
  • Patent number: 10183160
    Abstract: A wearable therapeutic device includes a garment configured to be worn on a torso of a patient. The garment has an anterior portion and a posterior portion. The garment is configured to house at least one defibrillator component, a first therapy electrode disposed in the anterior portion of the garment, a second therapy electrode disposed in the posterior portion of the garment, and an alarm module configured to alert the patient of an impending defibrillation shock from the at least one defibrillator component to be delivered by at least one of the first therapy electrode and the second therapy electrode. The first therapy electrode and the second therapy electrode are configured to be electrically coupled to the at least one defibrillator component. At least one of the first therapy electrode and the second therapy electrode is at least one of woven into the garment and comprises a textile material.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: January 22, 2019
    Assignee: ZOLL Medical Corporation
    Inventors: Thomas E. Kaib, Shane S. Volpe, Emil Oskin
  • Patent number: 10137305
    Abstract: Systems, devices, and methods for adjusting functionality of an implantable medical device based on posture are disclosed. In some instances, a method for operating a leadless cardiac pacemaker implanted into a patient, where the patient has two or more predefined behavioral states, may include detecting a change in the behavioral state of the patient, and in response, changing a sampling rate of a sensor signal generated by a sensor of the leadless cardiac pacemaker. In some embodiments, the method may further include using the sampled sensor signal to determine an updated pacing rate of the leadless cardiac pacemaker and providing pacing to the patient at the updated pacing rate.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: November 27, 2018
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Michael J. Kane, William J. Linder, Lance Eric Juffer, Benjamin J. Haasl, Brian L. Schmidt, Paul Huelskamp, Keith R. Maile
  • Patent number: 10124172
    Abstract: A monitoring system has biomechanical sensors, physiological sensors and a controller which receive sensory inputs from the sensors to provide output signals for the output device, and it detects from the sensory inputs risk of a syncopal event The bio-mechanical sensors include sensors arranged to allow the processor to detect a user postures and posture transitions. The processor operates a finite state machine, in which there is a state corresponding to each of a plurality of user physical postures and to each of a plurality of transitions between said postures, and the processor determines a relevant state depending on the sensory inputs. A device output may be muscle stimulation to prevent syncope, and there are stimulation permissions associated with the finite state machine states.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: November 13, 2018
    Assignees: National University of Ireland, Galway
    Inventors: Declan Lyons, Colin Quinn, Gearóid Ó Laighin, Paul Breen, Brian Deegan, Fabio Quondamatteo
  • Patent number: 10123722
    Abstract: The invention provides a multi-sensor system that uses an algorithm based on adaptive filtering to monitor a patient's respiratory rate. The system features a first sensor which is selected from the group consisting of an impedance pneumography sensor, an ECG sensor, a PPG sensor, * and a motion sensor (e.g., an accelerometer) configured to attach to the patient's torso and measure therefrom a motion signal. The system further comprises (iii) a processing system, configured to operably connect to the first and motion sensors, and to determine a respiration rate value by applying filter parameters obtained from the first sensor signals to the motion sensor signals.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: November 13, 2018
    Assignee: SOTERA WIRELESS, INC.
    Inventors: Matt Banet, Devin McCombie, Marshal Dhillon
  • Patent number: 10004909
    Abstract: A Medical Device Application (MDA) is disclosed for an external device (e.g., a cell phone) that can communicate with an Implantable Medical Device (IMD). The MDA receives data logged in the IMD, processes that data in manners reviewable by an IMD patient, and that can control the IMD based on such processed data. The MDA can use the logged data to adjust IMD therapy based on patient activity or posture, and allows a patient to learn optimal therapy settings for particular activities. The MDA can also use the logged data to allow a patient to review details about IMD battery performance, whether such battery is primary or rechargeable, and to control stimulation parameters based on that performance. The MDA also allows a patient to enter medicine dose information, to review the relationship between medicinal therapy and IMD therapy, and to adjust IMD therapy based on the dosing information.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: June 26, 2018
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventor: Samuel Tahmasian
  • Patent number: 9968787
    Abstract: Implantable devices having motion sensors. In some examples the a configuration is generated for the implantable device to use the motion sensor in an energy preserving mode in which one or more axis of detection of the motion sensor is disabled or ignored. In some examples the motion sensor outputs along multiple axes are analyzed to determine which axes best correspond to certain patient parameters including patient motion/activity and/or cardiac contractility. In other examples the output of the motion sensor is observed across patient movements or postures to develop conversion parameters to determine a patient standard frame of reference relative to outputs of the motion sensor of an implanted device.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: May 15, 2018
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Michael J. Kane, William J. Linder, Ron A. Balczewski, Bin Mi, John D. Hatlestad, Paul Huelskamp, Keith R. Maile
  • Patent number: 9956412
    Abstract: The disclosure is directed towards posture-responsive therapy. To avoid interruptions in effective therapy, an implantable medical device may include a posture state module that detects the posture state of the patient and automatically adjusts therapy parameter values according to the detected posture state. A system may include a user interface that receives user input linking a plurality of posture states of a patient, and selecting a set of therapy parameter values for delivery of therapy to the patient for each of a linked posture states, a processor that defines the therapy to be delivered to the patient for each of the linked posture states based on the selection, and an implantable medical device that delivers the therapy to the patient for each of the linked posture states based on the selection.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: May 1, 2018
    Assignee: Medtronic, Inc.
    Inventors: Dennis M. Skelton, Jon P. Davis, Shyam Gokaldas
  • Patent number: 9872991
    Abstract: The present invention is generally directed to methods, systems, and computer program products for coordinating musculoskeletal and cardiovascular hemodynamics. In some embodiments, a heart pacing signal causes heart contractions to occur with an essentially constant time relationship with respect to rhythmic musculoskeletal activity. In other embodiments, prompts (e.g., audio, graphical, etc.) are provided to a user to assist them in timing of their rhythmic musculoskeletal activity relative to timing of their cardiovascular cycle. In further embodiments, accurately indicating a heart condition during a cardiac stress test is increased.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: January 23, 2018
    Assignee: Pulson, Inc.
    Inventors: Jeffery L. Bleich, Paul Mannheimer, Darin Howard Buxbaum
  • Patent number: 9737719
    Abstract: A medical device provides stimulation therapy to a patient based on a set of therapy parameters. One or more therapy parameters may be automatically adjusted based on acceleration forces detected by a sensor, the acceleration forces being applied to the patient. In some examples, adjustments to one or more therapy parameter may be made based on an algorithm. The algorithm may be defined by acceleration and therapy parameter value pairs associated with opposite patient positions.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: August 22, 2017
    Assignee: Medtronic, Inc.
    Inventors: Dennis M. Skelton, Christopher Poletto, Eric J. Panken
  • Patent number: 9730618
    Abstract: A physiological response to activity (PRA) during a subject's activities of daily living (ADL) can be used, such as to generate useful diagnostic information about the subject. This can involve using a template, such as an impulse response template. The technique can be used with an implantable or other ambulatory medical monitoring or therapy device, such as a cardiac function management device, or with a local or remote external interface device.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: August 15, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Kenneth C. Beck, Lemont Baker, Kassity Yefei Liu
  • Patent number: 9723987
    Abstract: Techniques for remotely calibrating an implanted patient sensor with a remote networking device are described. In some embodiments, the sensor is a component of an implantable medical device (IMD). The remote networking device communicates with the IMD via a network to which the IMD and/or external programmer is connected. The IMD may transmit sensor information to the remote networking device when the IMD detects a problem with the sensor or when the patient indicates that therapy is not correctly selected for different activities. New calibration settings may be remotely generated by directly interrogating the sensor and/or communicating with the patient in order to associate sensor output with patient activities, motions, or postures.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: August 8, 2017
    Assignee: Medtronic, Inc.
    Inventor: Steven M. Goetz
  • Patent number: 9687655
    Abstract: A leadless cardiac pacemaker comprises a hermetic housing, a power source disposed in the housing, at least two electrodes supported by the housing, a semiconductor temperature sensor disposed in the housing, and a controller disposed in the housing and configured to deliver energy from the power source to the electrodes to stimulate the heart based upon temperature information from the temperature sensor. In some embodiments, the sensor can be configured to sense temperature information within a predetermined range of less than 20 degrees C. The temperature sensor can be disposed in the housing but not bonded to the housing.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: June 27, 2017
    Assignee: Pacesetter, Inc.
    Inventors: Michiel Pertijs, Kenneth J. Carroll
  • Patent number: 9602669
    Abstract: One embodiment provides a method for allocating assignments based on workload and physiological stress. The method comprises maintaining a queue of logged-in service representatives, and, in response to receiving a service request for a new assignment, scanning the queue to determine a subset of potential service representatives to assign the new assignment to. A corresponding workload level of each service representative of the subset is the smallest among all service representatives of the queue. For each service representative of the subset, a corresponding anxiety level is determined based on physiological sensor data captured by a wearable tracking device attached to the service representative. The new assignment is assigned to a service representative of the subset, the service representative having a corresponding anxiety level that is the smallest among all service representatives of the subset.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: March 21, 2017
    Assignee: International Business Machines Corporation
    Inventors: Douglas J. Griffith, Anil Kalavakolanu, Srinivasa R. Muppala, Srinivasa M. Raghavan, Yanhua Yang
  • Patent number: 9498630
    Abstract: An active implantable medical device for cardiac resynchronization includes implantable electrodes configured to detect atrial and ventricular events and to apply electrical pulses to a plurality of stimulation sites of the right and left ventricles, where a first combination of stimulation sites define an original pacing configuration and a second combination of stimulation sites define a changed pacing configuration. A sensing device is configured to measure a peak to peak amplitude of the first peak of endocardial acceleration for each cardiac cycle. A processing circuit is configured to change the pacing configuration from the original pacing configuration to the changed pacing configuration, measure one of a set of values in the changed pacing configuration, and change the pacing configuration from the changed pacing configuration to the original pacing configuration.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: November 22, 2016
    Assignee: SORIN CRM SAS
    Inventors: Cyrille Casset, Melanie Heurteau
  • Patent number: 9457190
    Abstract: The present invention is generally directed to methods, systems, and computer program products for coordinating musculoskeletal and cardiovascular hemodynamics. In some embodiments, a heart pacing signal causes heart contractions to occur with an essentially constant time relationship with respect to rhythmic musculoskeletal activity. In other embodiments, prompts (e.g., audio, graphical, etc.) are provided to a user to assist them in timing of their rhythmic musculoskeletal activity relative to timing of their cardiovascular cycle. In further embodiments, accurately indicating a heart condition during a cardiac stress test is increased.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: October 4, 2016
    Assignee: Pulson, Inc.
    Inventors: Jeffery L. Bleich, Paul Mannheimer, Darin Howard Buxbaum
  • Patent number: 9381366
    Abstract: Per the disclosure subcutaneously implantable medical devices (IMDs) with rate responsive implantable pulse generator (IPG) capability that also include dual patient activity sensors are adaptively controlled. One of the activity sensors uses multiple electrodes adapted to acquire electrocardiographic signals and signals from non-cardiac muscle tissue (myopotentially-based signals). The signals from the electrode-based activity sensor are used to confirm and/or override the patient-activity sensor signals from the other non-myopotentially-based patient activity sensor. The electrodes are directly mechanically coupled to the housing of the IMD and electrically coupled to circuitry that filters, processes, and interprets both the patient activity sensor signals.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: July 5, 2016
    Assignee: Medtronic, Inc.
    Inventor: Christopher C. Stancer
  • Patent number: 9238138
    Abstract: A method, electrical tissue stimulation system, and programmer for providing therapy to a patient are provided. Electrodes are placed adjacent tissue (e.g., spinal cord tissue) of the patient, electrical stimulation energy is delivered from the electrodes to the tissue in accordance with a defined waveform, and a pulse shape of the defined waveform is modified, thereby changing the characteristics of the electrical stimulation energy delivered from the electrode(s) to the tissue. The pulse shape may be modified by selecting one of a plurality of different pulse shape types or by adjusting a time constant of the pulse shape.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: January 19, 2016
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Dongchul Lee, Michael Moffitt, Christopher Ewan Gillespie, Kerry Bradley
  • Patent number: 9205263
    Abstract: A neural stimulation system automatically corrects or adjusts the stimulus magnitude (stimulation energy) in order to maintain a comfortable and effective stimulation therapy. Because the changes in impedance associated with the electrode-tissue interface can indicate obstruction of current flow and positional lead displacement, lead impedance can indicate the quantity of electrical stimulation energy that should be delivered to the target neural tissue to provide corrective adjustment. Hence, a change in impedance or morphology of an impedance curve may be used in a feedback loop to indicate that the stimulation energy needs to be adjusted and the system can effectively auto correct the magnitude of stimulation energy to maintain a desired therapeutic effect.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: December 8, 2015
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: John D. H. King, James R. Thacker
  • Patent number: 9132273
    Abstract: A positionally sensitive spinal cord stimulation apparatus and method using near-infrared (NIR) reflectometry are provided for automatic adjustments of spinal cord stimulation. The system comprises an electrode assembly with an integrated optical fiber sensor for sensing spinal cord position. The integrated optical fiber sensor, comprising a set of optical elements for emitting light from a set of IR emitters and for collecting reflected light into a set of IR photodetectors, determines a set of measured optical intensities. As the spinal cord changes position, the angles of incidence for light from the IR emitter and the measured optical intensities change. A ratio of measured optical intensities in combination with a total measured optical intensity is used to interpolate a set of electrode stimulation settings from a calibration table. Electrode pulse characteristics are adjusted in real time to minimize changes in stimulation perceived by the patient during motion.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: September 15, 2015
    Inventor: Erich W. Wolf, II
  • Patent number: 9081889
    Abstract: Improved techniques and systems for utilizing a portable electronic device to monitor, process, present and manage data captured by a remote sensor during a physical activity session are disclosed. The portable electronic device offers a convenient user interface that can be visual and/or audio based customized to a particular application, user-friendly and/or dynamic. The portable electronic device can pertain to a personal media device and thus also provide media playback.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: July 14, 2015
    Assignee: Apple Inc.
    Inventors: Michael I. Ingrassia, Jr., Eugene Dvortsov
  • Patent number: 9026209
    Abstract: An implantable cardiac stimulator includes at least one first sensing unit for detecting intrinsic cardiac activities of a first ventricle, at least one ventricular stimulation unit for stimulating a second ventricle, and a stimulation control unit connected to the first sensing unit. The stimulation unit processed output signals of the first sensing unit and generates control signals for the stimulation units. The stimulation control unit derives a current intrinsic RR interval from detected ventricular intrinsic cardiac activities R of the first ventricle, and to determine from the RR interval a delay interval ?, which begins with a ventricular event of the first ventricle and at the end of which the stimulation control unit triggers a stimulation of the second ventricle (unless it is suppressed).
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: May 5, 2015
    Assignee: Biotronik CRM Patent AG
    Inventors: Michael Vollkron, Michael Lippert
  • Patent number: 8996108
    Abstract: An implantable cardiac device includes a sensor for sensing patient activity and detecting phrenic nerve activation. A first filter channel attenuates first frequencies of the sensor signal to produce a first filtered output. A second filter channel attenuates second frequencies of the accelerometer signal to produce a second filtered output. Patient activity is evaluated using the first filtered output and phrenic nerve activation caused by cardiac pacing is detected using the second filtered output.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: March 31, 2015
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Aaron R. McCabe, Holly E. Rockweiler, Jacob I. Laughner
  • Publication number: 20150073494
    Abstract: Methods, systems and computer program products for cardiac pacing are provided. For pacing using biventricular synchronization in a patient, a first stimulation signal is applied to a first region of a heart of the patient at a first time and a second stimulation signal applied to a second region of the heart of the patient at a second time to provide biventricular synchronization stimulation of the heart. Cardiac function of the patient associated with application of the first and the second stimulation signals is sensed and a timing relationship of the first stimulation signal to the second stimulation signal is adjusted based on the sensed cardiac function.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 12, 2015
    Inventors: Raymond E. Ideker, Gregory P. Walcott
  • Patent number: 8956295
    Abstract: Devices and methods for sleep detection involve the use of an adjustable threshold for detecting sleep onset and termination. A method for detecting sleep includes adjusting a sleep threshold associated with a first sleep-related signal using a second sleep-related signal. The first sleep-related signal is compared to the adjusted threshold and sleep is detected based on the comparison. The sleep-related signals may be derived from implantable or external sensors. Additional sleep-related signals may be used to confirm the sleep condition. A sleep detector device implementing a sleep detection method may be a component of an implantable pulse generator such as a pacemaker or defibrillator.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: February 17, 2015
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Quan Ni, Zoe Hajenga, Douglas R. Daum, Jeffrey E. Stahmann, John D. Hatlestad, Kent Lee
  • Patent number: 8923964
    Abstract: An implantable neurostimulator-implemented method for managing tachyarrhythmias upon a patient's awakening from sleep through vagus nerve stimulation is provided. An implantable neurostimulator, including a pulse generator, is configured to deliver electrical therapeutic stimulation in a manner that results in creation and propagation (in both afferent and efferent directions) of action potentials within neuronal fibers comprising the cervical vagus nerve of a patient. Operating modes of the pulse generator are stored. An enhanced dose of the electrical therapeutic stimulation is parametrically defined and tuned to prevent initiation of or disrupt tachyarrhythmia upon the patient's awakening from a sleep state through at least one of continuously-cycling, intermittent and periodic ON-OFF cycles of electrical pulses. Other operating modes, including a maintenance dose and a restorative dose are defined.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: December 30, 2014
    Assignee: Cyberonics, Inc.
    Inventors: Imad Libbus, Badri Amurthur, Bruce H. Kenknight
  • Patent number: 8914107
    Abstract: A cardiac rhythm management (CRM) device can extract ventilation information from thoracic impedance or other information, and adjust a delivery rate of the CRM therapy. A tidal volume of a patient is measured and used to adjust a ventilation rate response factor. The measured tidal volume can optionally be adjusted using a ventilation rate dependent adjustment factor. The ventilation rate response factor can also be adjusted using a maximum voluntary ventilation (MVV), an age predicted maximum heart rate, a resting heart rate, and a resting ventilation determined for the patient. In various examples, a global ventilation sensor rate response factor (for a population) can be programmed into the CRM device, and automatically tailored to be appropriate for a particular patient.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: December 16, 2014
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Paul F. Emerson, Gary T. Seim, Michael A. Querimit, Donald L. Hopper, Stephen R. Pitzl, Daniel O'Brien
  • Patent number: 8903491
    Abstract: An implantable cardiac device is configured and programmed to assess a patient's cardiopulmonary function by evaluating the patient's minute ventilation response. Such evaluation may be performed by computing a minute ventilation response slope, defined as the ratio of an incremental change in minute ventilation to an incremental change in measured activity level. The minute ventilation response slope may then be compared with a normal range to assess the patient's functional status.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: December 2, 2014
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Donald L. Hopper, Bruce Wilkoff, Richard Morris
  • Patent number: 8886302
    Abstract: In general, the disclosure relates to the delivery of therapy according to a detected posture state of a patient. The disclosure contemplates a variety of techniques for managing therapy delivered to a patent. In one example, the disclosure relates to a technique including delivering therapy to a patient from a medical device, wherein the therapy is delivered to the patient according to a detected posture state of the patient; and automatically adjusting at least one aspect of the therapy delivered from a medical device based at least in part on one or more of time or patient posture state behavior, wherein automatically adjusting at least one aspect of therapy comprises suspending at least one aspect of the therapy or decreasing a posture state detection frequency.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: November 11, 2014
    Assignee: Medtronic, Inc.
    Inventors: Dennis M. Skelton, Jon P. Davis
  • Patent number: 8874211
    Abstract: According to an embodiment of a method for using an implantable device to deliver a hypertension therapy to a patient, an activity level is sensed using the implantable medical device. The implantable device may be programmed with a mapping of the sensed activity level to intensity levels for the hypertension therapy. The method may determine a desired intensity for the hypertension therapy as a function of both a circadian rhythm template and the sensed activity level, and use the implantable device to deliver the hypertension therapy using the desired intensity.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: October 28, 2014
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Imad Libbus, Andrew P. Kramer
  • Publication number: 20140277241
    Abstract: The present invention is generally directed to methods, systems, and computer program products for coordinating musculoskeletal and cardiovascular hemodynamics. In some embodiments, a heart pacing signal causes heart contractions to occur with an essentially constant time relationship with respect to rhythmic musculoskeletal activity. In other embodiments, prompts (e.g., audio, graphical, etc.) are provided to a user to assist them in timing of their rhythmic musculoskeletal activity relative to timing of their cardiovascular cycle. In further embodiments, accurately indicating a heart condition during a cardiac stress test is increased.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicant: Pulson, Inc.
    Inventors: Jeffery L. Bleich, Paul Mannheimer, Darin Howard Buxbaum
  • Publication number: 20140277240
    Abstract: Pacing parameters may be adjusted to increase the cardiac output of a patient's heart while a patient is awake and/or active and the demand placed on the heart may be greatest, and to decrease or hemodynamic efficiency while a patient is at rest so that the heart itself has time to rest before the next period of higher demand for efficiency begins. This may aid in lessening the strain placed on the heart by making the heart work hard when needed such as when the patient is active, and by permitting the heart to “rest” when the patient is relatively inactive.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicant: Cardiac Pacemakers, Inc.
    Inventors: Barun Maskara, Qi An, Pramodsingh Thakur, Julie Thompson