Patents by Inventor Shantanu Sarkar

Shantanu Sarkar 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: 20170325733
    Abstract: Systems and methods for assessing sympathetic nervous system (SNS) tone for renal neuromodulation therapy are disclosed herein. A system configured in accordance with embodiments of the present technology can include, for example, a detector attached to or implanted in a patient and a receiver communicatively coupled to the detector. The detector can measure cardiac data and the receiver and/or a device communicatively coupled thereto can analyze the cardiac data to provide one or more SNS tone indicators. The SNS tone indicators can be used to determine whether a patient will be responsive to a neuromodulation therapy and/or whether a neuromodulation therapy was effective.
    Type: Application
    Filed: December 17, 2015
    Publication date: November 16, 2017
    Inventors: DOUGLAS HETTRICK, Shantanu SARKAR
  • Patent number: 9818282
    Abstract: Wearable electronic communication devices having corresponding methods and computer-readable media comprise: an accelerometer; a don/doff detector; a transmitter; a processor configured to i) determine whether the wearable electronic communication device has experienced a fall based on information produced by the accelerometer, ii) determine whether the wearable electronic communication device was being worn during the fall based on information produced by the don/doff detector, and iii) cause the transmitter to transmit a message from the wearable electronic communication device responsive to the processor determining both i) the wearable electronic communication device has experienced a fall and ii) the wearable electronic communication device was being worn during the fall.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: November 14, 2017
    Assignee: Plantronics, Inc.
    Inventors: Joe Burton, Timothy P Johnston, Shantanu Sarkar
  • Publication number: 20170273589
    Abstract: A system and method for detecting and verifying bradycardia/asystole episodes includes sensing an electrogram (EGM) signal. The EGM signal is compared to a primary threshold to sense events in the EGM signal, and at least one of a bradycardia or an asystole is detected based on the comparison. In response to detecting at least one of a bradycardia or an asystole, the EGM signal is compared to a secondary threshold to sense events under-sensed by the primary threshold. The validity of the bradycardia or the asystole is determined based on the detected under-sensed events.
    Type: Application
    Filed: March 25, 2016
    Publication date: September 28, 2017
    Applicant: Medtronic, Inc.
    Inventors: Shantanu Sarkar, Michael Hudziak, Jerry Reiland, Erin Reisfeld
  • Publication number: 20170245794
    Abstract: Methods and systems for seamless adjustment of treatment are disclosed. A determination is made as to whether to intervene with a patient's treatment. Implanted device memory data is acquired over a pre-specified time period. Risk status is determined from the device memory data. Another external device memory data is acquired over a pre-specified time period. A determination is made as to whether to adjust treatment of the patient in response to the risk status, the data acquired from the implanted device memory and the external device memory data.
    Type: Application
    Filed: January 10, 2017
    Publication date: August 31, 2017
    Inventors: Vinod Sharma, Eduardo N. Warman, Shantanu Sarkar, Tommy D. Bennett, Lindsay M. Streeter, Jennifer K. Bravinder
  • Patent number: 9744364
    Abstract: A system including a programmable implantable monitoring device and a programmer for programming the device and a method of use thereof. The programmer may be configured to transmit programming commands responsive to entry of a reason for monitoring to the implantable device including a prioritization of an arrhythmia storage criterion. The implantable may be configured to thereafter store and/or transmit records of the arrhythmia according to the prioritization. The programmer may be configured to transmit the patient's age to the implantable device and the implantable may be configured to thereafter apply arrhythmia detection criteria based upon the patient's age.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: August 29, 2017
    Assignee: Medtronic, Inc.
    Inventors: Charles R Gordon, Paul G Krause, Grant Alan Neitzell, Shantanu Sarkar, Ryan Wyszynski
  • Publication number: 20170238838
    Abstract: A system and method is provided to measure intrathoracic complex impedance and to identify and indicate disease conditions based on the impedance measurements. Multiple impedance vectors may be taken into account, and an optimal vector may be selected to provide the most useful impedance measurement for the identification and indication of disease conditions.
    Type: Application
    Filed: May 8, 2017
    Publication date: August 24, 2017
    Inventors: Todd M. Zielinski, Douglas A. Hettrick, Shantanu Sarkar
  • Patent number: 9730601
    Abstract: Techniques for using multiple physiological parameters to provide an early warning for worsening heart failure are described. A medical device monitors a primary diagnostic parameter that is indicative of worsening heart failure, such as intrathoracic impedance or pressure, and one or more secondary diagnostic parameters. The medical device detects worsening heart failure in the patient based on the primary diagnostic parameter when an index that is changed over time based on the primary diagnostic parameter value is outside a range of values, termed the threshold zone. When the index is within the threshold zone, the medical device detects worsening heart failure in the patient based on the one or more secondary diagnostic parameters. Upon detecting worsening heart failure, the medical device may, for example, provide an alert that enables the patient to seek medical attention before experiencing a heart failure event.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: August 15, 2017
    Assignee: Medtronic, Inc.
    Inventors: Shantanu Sarkar, Douglas A Hettrick, Robert W Stadler
  • Patent number: 9713701
    Abstract: Techniques for using multiple physiological parameters to provide an early warning for worsening heart failure are described. A medical device monitors a primary diagnostic parameter that is indicative of worsening heart failure, such as intrathoracic impedance or pressure, and one or more secondary diagnostic parameters. The medical device detects worsening heart failure in the patient based on the primary diagnostic parameter when an index that is changed over time based on the primary diagnostic parameter value is outside a range of values, termed the threshold zone. When the index is within the threshold zone, the medical device detects worsening heart failure in the patient based on the one or more secondary diagnostic parameters. Upon detecting worsening heart failure, the medical device may, for example, provide an alert that enables the patient to seek medical attention before experiencing a heart failure event.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: July 25, 2017
    Assignee: Medtronic, Inc.
    Inventors: Shantanu Sarkar, Douglas A. Hettrick, Robert W. Stadler
  • Patent number: 9706602
    Abstract: Apparatus having corresponding methods and computer-readable media comprise: a processor configured to execute one or more applications associated with a plurality of identities; and one or more transceivers configured to transceive first wireless signals responsive to a first enablement signal, and to transceive second wireless signals responsive to a second enablement signal; wherein the first wireless signals represent a first transceiver identifier associated with a first one of the identities; wherein the second wireless signals represent a second transceiver identifier associated with a second one of the identities; wherein the processor is further configured to assert the first enablement signal responsive to occurrence of one or more first events; and wherein the processor is further configured to assert the second enablement signal responsive to occurrence of one or more second events.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: July 11, 2017
    Assignee: Plantronics, Inc.
    Inventors: Shantanu Sarkar, Timothy P Johnston, Cary Bran, Burton Joe
  • Patent number: 9699594
    Abstract: A mobile user device, configured to communicate over a wireless medium and a corresponding computer-implemented method is described. The mobile user device in one embodiment may comprise a near field communication interface for at least sending response information to a receiver in one or more near field transmissions; and a communication control module, connected with said near field communication interface. To improve the security of the mobile user device, the communication control module is configured to control whether said response information is sent by said near field communication interface in dependence of at least a communication safety parameter.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: July 4, 2017
    Assignee: Plantronics, Inc.
    Inventors: Shantanu Sarkar, Timothy P Johnston, Cary Bran, Joe Burton
  • Patent number: 9685195
    Abstract: Playback of multimedia data associated with a recorded conference session is simplified, particularly for a person who participated in the conference session from a mobile device. At a recording server that is in communication with a plurality of endpoints in a conference session, multimedia received from the plurality of endpoints participating in the conference session is recorded. The recording server obtains geographical location information for at least one mobile endpoint participating in the conference session as the at least one mobile endpoint moves. The recording server temporally correlates the geographical location information for the at least one endpoint with recorded multimedia data for the conference session. The recording server stores data tags for the geographical location information for the at least one mobile endpoint in association with the recorded multimedia data for subsequent use in indexing to map data to retrieve a portion of the recorded multimedia data for playback.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: June 20, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Shmuel Shaffer, Mukul Jain, Jochen Weppner, Shantanu Sarkar, Daniel Shaffer
  • Patent number: 9682240
    Abstract: Methods and/or devices are disclosed herein for monitoring cardiac impedance signal and delivering therapy to a patient's heart based upon the monitored cardiac impedance.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: June 20, 2017
    Assignee: Medtronic, Inc.
    Inventors: Douglas A. Hettrick, Todd M. Zielinski, Eduardo Warman, Shantanu Sarkar
  • Patent number: 9675270
    Abstract: A method and medical monitoring device for determining the occurrence of a premature ventricular contraction that includes sensing a cardiac signal and determining R-waves in response to the sensed cardiac signal, determining RR intervals between the determined R-waves, determining whether a first interval criteria is satisfied in response to the determined intervals, determining a correlation between the determined R-waves, determining whether a first correlation criteria is satisfied in response to the determined correlation, and determining the premature ventricular contraction is occurring in response to the first interval criteria and the first correlation criteria being satisfied.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: June 13, 2017
    Assignee: Medtronic, Inc.
    Inventor: Shantanu Sarkar
  • Patent number: 9675269
    Abstract: A method and implantable medical device for determining noise in response to a cardiac signal that includes sensing the cardiac signal, determining a sensing window in response to the sensed cardiac signal, the sensing window comprising a first portion and a second portion, determining a first derivative signal in response to the sensed cardiac signal within only one of the first portion and the second portion of the sensing window, determining a second derivative signal in response to the sensed cardiac signal within the one of the first portion and the second portion of the sensing window, determining whether an amplitude of the second derivative signal satisfies an amplitude threshold, and determining noise in response to the amplitude of the second derivative signal satisfying the amplitude threshold.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: June 13, 2017
    Assignee: Medtronic, Inc.
    Inventors: Shantanu Sarkar, Daniel L Hansen, Grant A Neitzell
  • Patent number: 9642558
    Abstract: A system and method is provided to measure intrathoracic complex impedance and to identify and indicate disease conditions based on the impedance measurements. Multiple impedance vectors may be taken into account, and an optimal vector may be selected to provide the most useful impedance measurement for the identification and indication of disease conditions.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: May 9, 2017
    Assignee: Medtronic, Inc.
    Inventors: Todd M Zielinski, Douglas A Hettrick, Shantanu Sarkar
  • Patent number: 9603543
    Abstract: A method and implantable medical device for determining an atrial arrhythmia event that includes sensing a cardiac signal, determining an atrial arrhythmia score for identifying the arrhythmia event in response to the sensed cardiac signal, determining a sensing window in response to the sensed cardiac signal, the sensing window having a first portion and a second portion, determining signal characteristics of the sensed cardiac signal within the first portion and within the second portion, determining whether the sensed cardiac signal within the first portion and within the second portion corresponds to a P-wave in response to the determined signal characteristics, determining whether a signal to noise ratio of the sensed cardiac signal within the first portion and the second portion of the sensing window is satisfied, determining whether to update the arrhythmia score in response to the determined P-wave and the determined signal to noise ratio, and determining whether to delivery an arrhythmia therapy in r
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: March 28, 2017
    Assignee: Medtronic, Inc.
    Inventors: Shantanu Sarkar, Daniel L Hansen, Grant A Neitzell, Jerry D Reiland, Ryan Wyszynski
  • Publication number: 20160361026
    Abstract: Techniques for using multiple physiological parameters to provide an early warning for worsening heart failure are described. A system is provided that monitors a multiple diagnostic parameters indicative of worsening heart failure. The parameters preferably include are least one parameter acquired from an implanted device, such as intrathoracic impedance. The system device derives an index of the likelihood of worsening heart failure based upon the parameters using a Bayesian approach and displays the resultant index for review by a physician.
    Type: Application
    Filed: March 29, 2011
    Publication date: December 15, 2016
    Applicant: Medtronic, Inc.
    Inventors: Shantanu Sarkar, Douglas A. Hettrick, Amul Y. Desai, Randolph M. Biallas, Holly S. Vitense, Jodi L. Redemske
  • Publication number: 20160331977
    Abstract: Methods and/or devices are disclosed herein for monitoring cardiac impedance signal and delivering therapy to a patient's heart based upon the monitored cardiac impedance.
    Type: Application
    Filed: July 26, 2016
    Publication date: November 17, 2016
    Inventors: Douglas A. Hettrick, Todd M. Zielinski, Eduardo Warman, Shantanu Sarkar
  • Patent number: 9486155
    Abstract: A method and medical device for determining a P-wave of a cardiac signal that includes sensing the cardiac signal, determining a P-wave sensing window in response to the sensed cardiac signal, the P-wave sensing window having a first portion and a second portion, determining signal characteristics of the sensed cardiac signal within the first portion and within the second portion, comparing the determined signal characteristics, and determining the P-wave in response to the comparing.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: November 8, 2016
    Assignee: Medtronic, Inc.
    Inventors: Shantanu Sarkar, Daniel L Hansen, Grant A Neitzell
  • Publication number: 20160310031
    Abstract: A method and medical monitoring device for determining the occurrence of a premature ventricular contraction that includes sensing a cardiac signal and determining R-waves in response to the sensed cardiac signal, determining RR intervals between the determined R-waves, determining whether a first interval criteria is satisfied in response to the determined intervals, determining a correlation between the determined R-waves, determining whether a first correlation criteria is satisfied in response to the determined correlation, and determining the premature ventricular contraction is occurring in response to the first interval criteria and the first correlation criteria being satisfied.
    Type: Application
    Filed: April 20, 2016
    Publication date: October 27, 2016
    Inventor: Shantanu SARKAR