Patents by Inventor Shantha Arcot-Krishnamurthy

Shantha Arcot-Krishnamurthy 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).

  • Patent number: 10595739
    Abstract: An anatomical mapping system including a plurality of mapping electrodes disposed in or near an anatomical structure and configured to detect activation signals of physiological activity, each of the plurality of mapping electrodes having an electrode location, and a processing system associated with the plurality of mapping electrodes, and configured to record the detected activation signals and associate one of the plurality of mapping electrodes with each recorded activation signal. The processing system further configured to determine a dominant frequency at each electrode location, and determine a wavefront vector at each electrode location based on a difference between the dominant frequency at a first electrode location and the dominant frequency at neighboring electrode locations.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: March 24, 2020
    Assignee: Boston Scientific Scimed Inc
    Inventors: Pramodsingh Hirasingh Thakur, Shibaji Shome, Allan C. Shuros, Shantha Arcot-Krishnamurthy, Barun Maskara, Sunipa Saha
  • Patent number: 10555680
    Abstract: A method and system for mapping an anatomical structure includes sensing activation signals of intrinsic physiological activity with a plurality of mapping electrodes disposed in or near the anatomical structure, each of the plurality of mapping electrodes having an electrode location. A vector field map which represents a direction of propagation of the activation signals at each electrode location is generated to identify a signature pattern and a location in the vector field map according to at least one vector field template. A target location of the identified signature pattern is identified according to a corresponding electrode location.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: February 11, 2020
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Pramodsingh H. Thakur, Shibaji Shome, Shantha Arcot-Krishnamurthy, Allan C. Shuros, Barun Maskara, Sunipa Saha
  • Patent number: 10172536
    Abstract: A catheter system includes a mapping catheter including a plurality of mapping electrodes, each mapping electrode configured to sense signals associated with an anatomical structure. The catheter system further includes a processor operatively coupled to the plurality of mapping electrodes and configured to receive the signals sensed by the plurality of mapping electrodes, characterize the signals sensed by the plurality of mapping electrodes based on a signal parameter of the sensed signals, and generate an output of a quality of contact of the plurality of mapping electrodes with the anatomical structure based on the signal characterization.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: January 8, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Barun Maskara, Pramodsingh H. Thakur, Shantha Arcot-Krishnamurthy, Shibaji Shome, Sunipa Saha, Allan C. Shuros, Scott A. Meyer
  • Patent number: 10173067
    Abstract: An implantable pacing device for delivering ventricular pacing may be configured to intermittently and variably reduce the AV delay interval used in an atrial triggered pacing mode in a manner that simulates exercise. The device may be programmed to intermittently switch to and from a variably shortened AV delay mode according to defined entry and exit conditions.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: January 8, 2019
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Allan Charles Shuros, Donald L. Hopper, Shantha Arcot-Krishnamurthy
  • Patent number: 10076258
    Abstract: Medical devices and methods for using medical devices are disclosed. An example mapping medical device may include a catheter shaft with a plurality of electrodes. The plurality of electrodes may include a first pair of electrodes, a second pair of electrodes, a third pair of electrodes and a fourth pair of electrodes. The mapping medical device may further include a processor, wherein the processor may be configured to determine a first latency between the first pair of electrodes, determine a second latency between the second pair of electrodes, determine a third latency between the third pair of electrodes, determine a fourth latency between the fourth pair of electrodes, and determine a target signal by interpolating the first latency, the second latency, the third latency and the fourth latency.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: September 18, 2018
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Pramodsingh Hirasingh Thakur, Barun Maskara, Shibaji Shome, Allan C. Shuros, Shantha Arcot-Krishnamurthy, Sunipa Saha
  • Patent number: 10029091
    Abstract: A medical apparatus comprising an implantable lead and a stylet configured for stimulation of a target region of a patient's nervous system is described. The lead includes a generally tubular lead body, a conductor, and an electrode assembly. The generally tubular lead body has a stylet lumen and a conductor lumen extending through the proximal and distal ends of the lead body. The conductor is enclosed within the conductor lumen. The electrode assembly extends from the distal end of the lead body. The electrode assembly includes a flexible polymeric carrier and an electrode on the carrier and electrically coupled to the conductor. The stylet is sized and shaped to be receivable within the stylet lumen and configured to stiffen and support the lead body. The distal portion of the stylet includes a bend having a predetermined angle of incidence relative to the proximal portion of the stylet.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: July 24, 2018
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Eric A. Mokelke, Shantha Arcot-Krishnamurthy, Brian Soltis, Jason J. Hamann
  • Publication number: 20180153426
    Abstract: A method and system for mapping an anatomical structure includes sensing activation signals of intrinsic physiological activity with a plurality of mapping electrodes disposed in or near the anatomical structure, each of the plurality of mapping electrodes having an electrode location. A vector field map which represents a direction of propagation of the activation signals at each electrode location is generated to identify a signature pattern and a location in the vector field map according to at least one vector field template. A target location of the identified signature pattern is identified according to a corresponding electrode location.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 7, 2018
    Inventors: Pramodsingh H. Thakur, Shibaji Shome, Shantha Arcot-Krishnamurthy, Allan C. Shuros, Barun Maskara, Sunipa Saha
  • Patent number: 9918649
    Abstract: A method and system for mapping an anatomical structure includes sensing activation signals of intrinsic physiological activity with a plurality of mapping electrodes disposed in or near the anatomical structure, each of the plurality of mapping electrodes having an electrode location. A vector field map which represents a direction of propagation of the activation signals at each electrode location is generated to identify a signature pattern and a location in the vector field map according to at least one vector field template. A target location of the identified signature pattern is identified according to a corresponding electrode location.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: March 20, 2018
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Pramodsingh H. Thakur, Shibaji Shome, Shantha Arcot-Krishnamurthy, Allan C. Shuros, Barun Maskara, Sunipa Saha
  • Publication number: 20170326371
    Abstract: A neurostimulation system includes a neural stimulation lead having a proximal portion and a distal portion and including a plurality of electrodes along the distal portion. The plurality of electrodes are configured for positioning proximate a portion of the autonomic nervous system. A neural stimulation circuit, coupled to the plurality of electrodes, delivers neural stimulation pulses to the plurality of electrodes. A processor and controller is configured to control the neural stimulation circuit to deliver first neural stimulation pulses to each of a plurality of electrode configurations. Each electrode configuration includes one or more of the plurality of electrodes. The processor and controller is further configured to receive information related to motor fiber activity that is induced in response to delivery of the first neural stimulation pulses to each of the plurality of electrode configurations and to identify the electrode configurations that induce the motor fiber activity.
    Type: Application
    Filed: August 1, 2017
    Publication date: November 16, 2017
    Inventors: Shantha Arcot-Krishnamurthy, David J. Ternes, Jason J. Hamann, Juan Gabriel Hincapie Ordonez, Stephen B. Ruble
  • Patent number: 9814395
    Abstract: Implanted electrodes can be used to deliver electrical stimulation signals to areas near blood vessels, nerves, or other internal body locations. In an example, an electrode can be implanted in a cervical location and can be used to measure dimensional changes in an artery using impedance plethysmography. Measured artery dimensional changes can be used to determine one or more physiological parameters associated with a patient's health status, such as pulse transit time, relative pulse pressure, or aterial compliance, among others. These parameters can be used to monitor a patient health status or to modulate a patient's therapy, among other uses. In some examples, an electrode configured to deliver an electrostimulation signal to nerve tissue can be used to provide non-neurostimulating electrical stimulation plethysmography signals near a blood vessel.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: November 14, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jeffrey E. Stahmann, David J. Ternes, Barun Maskara, Shantha Arcot-Krishnamurthy, Juan Gabriel Hincapie Ordonez, Scott Vanderlinde
  • Publication number: 20170311834
    Abstract: An anatomical mapping system including a plurality of mapping electrodes disposed in or near an anatomical structure and configured to detect activation signals of physiological activity, each of the plurality of mapping electrodes having an electrode location, and a processing system associated with the plurality of mapping electrodes, and configured to record the detected activation signals and associate one of the plurality of mapping electrodes with each recorded activation signal. The processing system further configured to determine a dominant frequency at each electrode location, and determine a wavefront vector at each electrode location based on a difference between the dominant frequency at a first electrode location and the dominant frequency at neighboring electrode locations.
    Type: Application
    Filed: July 17, 2017
    Publication date: November 2, 2017
    Inventors: Pramodsingh Hirasingh Thakur, Shibaji Shome, Allan C. Shuros, Shantha Arcot-Krishnamurthy, Barun Maskara, Sunipa Saha
  • Patent number: 9795778
    Abstract: An electrode structure for an implantable stimulation lead for use in stimulating a target nerve structure within a patient includes a flexible backing defined by a major dimension extending in a direction of a first axis, and a minor dimension extending generally orthogonal to the first axis. The electrode structure also includes a plurality of electrodes coupled to the backing.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: October 24, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Eric A. Mokelke, Shantha Arcot-Krishnamurthy, Brian Soltis
  • Patent number: 9737227
    Abstract: A system and method for mapping an anatomical structure includes sensing activation signals of physiological activity with a plurality of mapping electrodes disposed in or near the anatomical structure. Patterns among the sensed activation signals are identified based on a similarity measure generated between each unique pair of identified patterns which are classified into groups based on a correlation between the corresponding pairs of similarity measures. A characteristic representation is determined for each group of similarity measures and displayed as a summary plot of the characteristic representations.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: August 22, 2017
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Pramodsingh Hirasingh Thakur, Shibaji Shome, Allan C. Shuros, Shantha Arcot-Krishnamurthy, Barun Maskara, Sunipa Saha
  • Patent number: 9731135
    Abstract: A neurostimulation system includes a neural stimulation lead having a proximal portion and a distal portion and including a plurality of electrodes along the distal portion. The plurality of electrodes are configured for positioning proximate a portion of the autonomic nervous system. A neural stimulation circuit, coupled to the plurality of electrodes, delivers neural stimulation pulses to the plurality of electrodes. A processor and controller is configured to control the neural stimulation circuit to deliver first neural stimulation pulses to each of a plurality of electrode configurations. Each electrode configuration includes one or more of the plurality of electrodes. The processor and controller is further configured to receive information related to motor fiber activity that is induced in response to delivery of the first neural stimulation pulses to each of the plurality of electrode configurations and to identify the electrode configurations that induce the motor fiber activity.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: August 15, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Shantha Arcot-Krishnamurthy, David J. Ternes, Jason J. Hamann, Juan Gabriel Hincapie Ordonez, Stephen B. Ruble
  • Patent number: 9730600
    Abstract: Medical devices and methods for using medical devices are disclosed. An example mapping medical device may include a catheter shaft with a plurality of electrodes. The catheter shaft may be coupled to a processor. The processor may be capable of collecting a first set of signals from a first location, collecting a second set of signals from a second location, characterizing the first set of signals over a first time period, characterizing the second set of signals over a second time period, comparing the first set of signals to the second set of signals and matching a first signal from the first set of signals with a second signal from the second set of signals.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: August 15, 2017
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Pramodsingh Hirasingh Thakur, Allan C. Shuros, Barun Maskara, Shibaji Shome, Shantha Arcot-Krishnamurthy, Sunipa Saha, Scott A. Meyer
  • Patent number: 9681817
    Abstract: A method for mapping an anatomical structure includes sensing activation signals of intrinsic physiological activity with a plurality of electrodes disposed in or near the anatomical structure, identifying at least one of the electrodes not in direct contact with the anatomical structure, and adjusting the activation signals sensed by each of the plurality of electrodes based on the activation signals sensed by the identified at least one of the electrodes not in direct contact with the anatomical structure.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: June 20, 2017
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Barun Maskara, Shantha Arcot-Krishnamurthy, Pramodsingh H. Thakur, Allan C. Shuros, Sunipa Saha, Shibaji Shome
  • Patent number: 9636032
    Abstract: A system and method for mapping an anatomical structure includes sensing activation signals of intrinsic physiological activity with a plurality of electrodes disposed in or near the anatomical structure. A most recent intrinsic event at a selected time is determined based on the sensed activation signals and a persistent display of relevant characteristics is generated based on the sensed activation signals of the most recent intrinsic event. The persistent display is updated upon detection of a subsequent intrinsic event.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: May 2, 2017
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Pramodsingh H. Thakur, Shantha Arcot-Krishnamurthy, Allan C. Shuros, Sunipa Saha, Shibaji Shome, Barun Maskara
  • Patent number: 9579034
    Abstract: An anatomical mapping system and method includes mapping electrodes configured to detect activation signals of cardiac activity. A processing system is configured to record the detected activation signals and generate a vector field for each sensed activation signal during each instance of the physiological activity. The processing system determines an onset time and alternative onset time candidates, identifies an initial vector field template based on a degree of similarity between the initial vector field and a vector field template from a bank of templates, then determines an optimized onset time for each activation signal based on a degree similarity between the onset time candidates and initial vector field template.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: February 28, 2017
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Pramodsingh H. Thakur, Shantha Arcot-Krishnamurthy, Allan C. Shuros, Shibaji Shome, Barun Maskara, Sunipa Saha
  • Patent number: 9572989
    Abstract: Some embodiments provide a method, comprising performing a neural stimulation test routine for stimulating a neural target in a cervical region of a patient, wherein for each of a plurality of head positions, performing the neural stimulation test routine includes testing a plurality of electrode configurations. The method further comprises recording threshold data for each of the tested electrode configurations for the plurality of head positions, and recommending an electrode configuration based on the recorded threshold data.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: February 21, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Shantha Arcot-Krishnamurthy, Stephen B. Ruble, Jason J. Hamann, Juan Gabriel Hincapie Ordonez, David J. Ternes
  • Patent number: 9561374
    Abstract: Various embodiments intermittently deliver a sympathetic stimulus, including deliver a sequence of stress-inducing pacing pulses adapted to increase sympathetic tone during the stress-inducing pacing. The stress-inducing pacing results in a parasympathetic reflex after the sequence of stress-inducing pacing. The embodiment further delivers neural stimulation to elicit a parasympathetic response or a sympathetic response in a coordinated manner with respect to the sequence of stress-inducing pacing pulses.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: February 7, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Allan C. Shuros, Shantha Arcot-Krishnamurthy, Bruce H. KenKnight, Douglas R. Daum