Patents by Inventor Shibaji Shome

Shibaji Shome 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: 11135433
    Abstract: Approaches to rank potential left ventricular (LV) pacing vectors are described. Early elimination tests are performed to determine the viability of LV cathode electrodes. Some LV cathodes are eliminated from further testing based on the early elimination tests. LV cathodes identified as viable cathodes are tested further. Viable LV cathode electrodes are tested for hemodynamic efficacy. Cardiac capture and phrenic nerve activation thresholds are then measured for potential LV pacing vectors comprising a viable LV cathode electrode and an anode electrode. The potential LV pacing vectors are ranked based on one or more of the hemodynamic efficacy of the LV cathodes, the cardiac capture thresholds, and the phrenic nerve activation thresholds.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: October 5, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Krzysztof Z. Siejko, Shibaji Shome, Jiang Ding
  • Patent number: 10827939
    Abstract: The present disclosure relates to the field of tissue mapping and ablation. Specifically, the present disclosure relates to expandable medical devices for identifying and treating local anatomical abnormalities within a body lumen. More specifically, the present disclosure relates to systems and methods of focal treatment for overactive bladders.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: November 10, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Sandra Nagale, Bryan Clark, Allan Shuros, Ding He, Dennis Werner, Lynne Swanson, Charles Gibson, Amedeo Chiavetta, Michael Peterson, Shibaji Shome, Mark Boden, Timothy Harrah
  • Patent number: 10716620
    Abstract: The present disclosure relates to the field of tissue mapping and ablation. Specifically, the present disclosure relates to expandable medical devices for identifying and treating local anatomical abnormalities within a body lumen. More specifically, the present disclosure relates to systems and methods of focal treatment for overactive bladders.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: July 21, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Sandra Nagale, Mark W. Boden, Bryan Allen Clark, Shibaji Shome, Amedeo J. Chiavetta
  • Patent number: 10595745
    Abstract: A catheter adapted to determine a contact force, the catheter including a proximal segment, a distal segment, and an elastic segment extending from the proximal segment to the distal segment. The distal segment includes a plurality of tip electrodes including at least three radial electrodes disposed about a circumference of the distal segment. The radial electrodes are configured to output electrical signals indicative of a contact vector of the contact force. The elastic segment includes a force sensing device configured to output an electrical signal indicative of a magnitude of an axial component of the contact force, wherein the contact force is determined by scaling the magnitude of the axial component of the contact force by the contact vector.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: March 24, 2020
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Mary M. Byron, Jacob I. Laughner, Shibaji Shome
  • 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: 10575900
    Abstract: A catheter system includes a catheter comprising a tip assembly, the tip assembly having a plurality of electrodes and the plurality of electrodes are configured to measure electrical signals. The system also includes a processing unit configured to: receive a first electrical signal sensed by a first electrode of the plurality of electrodes and a second electrical signal sensed by a second electrode of the plurality of electrodes. A first vector is determined based on the first electrical signal that corresponds to the first electrode. A second vector is determined based on the second electrical signal that corresponds to the second electrode. A resultant vector is determined by summing at least the first vector and the second vector, wherein the resultant vector is indicative of the orientation of the tip assembly.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: March 3, 2020
    Assignee: Boston Scientific Scimed Inc
    Inventors: Jacob I. Laughner, Jason J. Hamann, Shibaji Shome, Allan C. Shuros, Mary M. Byron, Paul Hultz, Pramodsingh H. Thakur
  • 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: 10449367
    Abstract: Cardiac anodal electrostimulation detection systems and methods are described, such as for distinguishing between cathodal-only capture and at least partially anodal capture (e.g., combined anodal and cathodal capture, or between two anodes of which only one captures nearby cardiac tissue, etc.).
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: October 22, 2019
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Holly Rockweiler, Shibaji Shome, Aaron R. McCabe, Rachel A. Taylor
  • Patent number: 10368767
    Abstract: Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a system for mapping the electrical activity of the heart. The system may include a catheter shaft with a plurality of electrodes. The system may also include a processor. The processor may be capable of collecting a set of signals from at least one of the plurality of electrodes. The set of signals may be collected over a time period. The processor may also be capable of calculating at least one propagation vector from the set of signals, generating a data set from the at least one propagation vector, generating a statistical distribution of the data set and generating a visual representation of the statistical distribution.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: August 6, 2019
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Jacob I. Laughner, Shibaji Shome, Paul Hultz, Kevin J. Stalsberg, Pramodsingh H. Thakur
  • Patent number: 10350423
    Abstract: A device configured to deliver and deploy an implantable medical device (IMD) includes a handle assembly and a shaft extending distally therefrom. A device containment housing configured to accommodate the IMD is coupled to the distal region of the shaft. At least one of the shaft and device containment housing includes a compressible region that is configured to compress by an amount that is related to an applied force. The device may include a first position indicator and a second position indicator. An applied force causes the compressible region to compress by an amount that is related to the applied force, causing a change in distance between the first position indicator and the second position indicator and thus providing an indication of the applied force.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: July 16, 2019
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Allan Charles Shuros, Shibaji Shome, Brian Soltis, Brian L. Schmidt, Kevin John Stalsberg
  • Publication number: 20190143122
    Abstract: Approaches to rank potential left ventricular (LV) pacing vectors are described. Early elimination tests are performed to determine the viability of LV cathode electrodes. Some LV cathodes are eliminated from further testing based on the early elimination tests. LV cathodes identified as viable cathodes are tested further. Viable LV cathode electrodes are tested for hemodynamic efficacy. Cardiac capture and phrenic nerve activation thresholds are then measured for potential LV pacing vectors comprising a viable LV cathode electrode and an anode electrode. The potential LV pacing vectors are ranked based on one or more of the hemodynamic efficacy of the LV cathodes, the cardiac capture thresholds, and the phrenic nerve activation thresholds.
    Type: Application
    Filed: December 27, 2018
    Publication date: May 16, 2019
    Inventors: Krzysztof Z. Siejko, Shibaji Shome, Jiang Ding
  • Patent number: 10264985
    Abstract: Medical devices and methods for making and using medical devices are disclosed. An example system for mapping the electrical activity of the heart includes a catheter shaft. The catheter shaft includes a plurality of electrodes including a first and a second electrode. The system also includes a processor. The processor is capable of collecting a first signal corresponding to a first electrode over a time period and generating a first time-frequency distribution corresponding to the first signal. The first time-frequency distribution includes a first dominant frequency value representation occurring at one or more first base frequencies. The processor is also capable of applying a filter to the first signal or derivatives thereof to determine whether the first dominant frequency value representation includes a single first dominant frequency value at a first base frequency or two or more first dominant frequency values at two or more base frequencies.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: April 23, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Jacob I. Laughner, Carlos Alberto Ricci, Vladimir V. Kovtun, Shibaji Shome, Pramodsingh H. Thakur, Allan C. Shuros, Kevin J. Stalsberg
  • Publication number: 20190038161
    Abstract: Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a system for mapping the electrical activity of the heart. The system may include a catheter shaft with a plurality of electrodes. The system may also include a processor. The processor may be capable of collecting a set of signals from at least one of the plurality of electrodes. The set of signals may be collected over a time period. The processor may also be capable of calculating at least one propagation vector from the set of signals, generating a data set from the at least one propagation vector, generating a statistical distribution of the data set and generating a visual representation of the statistical distribution.
    Type: Application
    Filed: October 8, 2018
    Publication date: February 7, 2019
    Inventors: Jacob I. Laughner, Shibaji Shome, Paul Hultz, Kevin J. Stalsberg, Pramodsingh H. Thakur
  • Patent number: 10195443
    Abstract: Approaches to rank potential left ventricular (LV) pacing vectors are described. Early elimination tests are performed to determine the viability of LV cathode electrodes. Some LV cathodes are eliminated from further testing based on the early elimination tests. LV cathodes identified as viable cathodes are tested further. Viable LV cathode electrodes are tested for hemodynamic efficacy. Cardiac capture and phrenic nerve activation thresholds are then measured for potential LV pacing vectors comprising a viable LV cathode electrode and an anode electrode. The potential LV pacing vectors are ranked based on one or more of the hemodynamic efficacy of the LV cathodes, the cardiac capture thresholds, and the phrenic nerve activation thresholds.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: February 5, 2019
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Krzysztof Z. Siejko, Shibaji Shome, Jiang Ding
  • Publication number: 20190029535
    Abstract: Medical devices and methods for making and using medical devices are disclosed. An example system for mapping the electrical activity of the heart includes a catheter shaft. The catheter shaft includes a plurality of electrodes including a first and a second electrode. The system also includes a processor. The processor is capable of collecting a first signal corresponding to a first electrode over a time period and generating a first time-frequency distribution corresponding to the first signal. The first time-frequency distribution includes a first dominant frequency value representation occurring at one or more first base frequencies. The processor is also capable of applying a filter to the first signal or derivatives thereof to determine whether the first dominant frequency value representation includes a single first dominant frequency value at a first base frequency or two or more first dominant frequency values at two or more base frequencies.
    Type: Application
    Filed: October 1, 2018
    Publication date: January 31, 2019
    Inventors: Jacob I. Laughner, Carlos Alberto Ricci, Vladimir V. Kovtun, Shibaji Shome, Pramodsingh H. Thakur, Allan C. Shuros, Kevin J. Stalsberg
  • 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: 10092204
    Abstract: Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a system for mapping the electrical activity of the heart. The system may include a catheter shaft with a plurality of electrodes. The system may also include a processor. The processor may be capable of collecting a set of signals from at least one of the plurality of electrodes. The set of signals may be collected over a time period. The processor may also be capable of calculating at least one propagation vector from the set of signals, generating a data set from the at least one propagation vector, generating a statistical distribution of the data set and generating a visual representation of the statistical distribution.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: October 9, 2018
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Jacob I. Laughner, Shibaji Shome, Paul Hultz, Kevin J. Stalsberg, Pramodsingh H. Thakur
  • Patent number: 10085659
    Abstract: Medical devices and methods for making and using medical devices are disclosed. An example system for mapping the electrical activity of the heart includes a catheter shaft. The catheter shaft includes a plurality of electrodes including a first and a second electrode. The system also includes a processor. The processor is capable of collecting a first signal corresponding to a first electrode over a time period and generating a first time-frequency distribution corresponding to the first signal. The first time-frequency distribution includes a first dominant frequency value representation occurring at one or more first base frequencies. The processor is also capable of applying a filter to the first signal or derivatives thereof to determine whether the first dominant frequency value representation includes a single first dominant frequency value at a first base frequency or two or more first dominant frequency values at two or more base frequencies.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: October 2, 2018
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Jacob I. Laughner, Carlos Alberto Ricci, Vladimir V. Kovtun, Shibaji Shome, Pramodsingh H. Thakur, Allan C. Shuros, Kevin J. Stalsberg
  • 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: 10016145
    Abstract: Electrical activity propagation along an electrode array within a cardiac chamber is reconstructed. Signals are sampled from the electrode array and the signals are plotted in multi-dimensional space with each axis corresponding to a channel in the electrode array. An excursion direction of global activation in the multi-dimensional space is estimated and a change in vectors of the sampled signals over time is determined. Signals with vectors that change over time in the excursion direction are suppressed.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: July 10, 2018
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Pramodsingh Hirasingh Thakur, Barun Maskara, Allan C. Shuros, Sunipa Saha, Shibaji Shome