Patents by Inventor Keshava Datta

Keshava Datta 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: 20240081712
    Abstract: A catheter for electrophysiology applications is disclosed herein that includes a tubular member and an end effector. The end effector is coupled to a distal portion of the tubular member. The end effector includes first, second, and third loop members configured so that the first loop member defines a first plane, the second loop member defines a second plane at an angle to the first plane, and the third loop member defines a third plane at an angle to the first plane and at an angle to the second plane. Each of the first, second, and third loop members are configured as a respective single axis magnetic coil, and the first, second, and third loop members are collectively configured to function as a three axis magnetic sensor.
    Type: Application
    Filed: November 10, 2023
    Publication date: March 14, 2024
    Inventors: Thomas V. SELKEE, Keshava DATTA, Thanh NGUYEN, Anand RAO, Rajesh PENDEKANTI, Meir BAR-TAL, Ricardo PADILLA
  • Patent number: 11896395
    Abstract: An apparatus includes a catheter assembly for use in a medical procedure to conduct electrophysiological mapping. The catheter assembly includes a catheter having an end effector with a tip member. One or more insert-molded microelectrodes are located in the tip member of the end effector for conducting electrophysiological mapping. The insert-molded microelectrodes include a microelectrode and a composite that isolates the microelectrode from contact with the tip member.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: February 13, 2024
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Anand R. Rao, Keshava Datta, Thanh V. Nguyen, Thomas V. Selkee
  • Patent number: 11872358
    Abstract: A catheter with a variable circular loop is responsive to a contraction wire for increasing the coiling of the circular loop. The shape of the loop is supported by an elongated member, wherein a radially constrictive sleeve confines the contraction wire to extends immediately alongside the length of elongated member so as to improve uniformity and minimize misshaping of the loop during contraction.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: January 16, 2024
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Ricardo Padilla, Homero Padilla, Julie Bui, Mario Solis, Thomas Selkee, Jose Jimenez, Keshava Datta, Fernando Salazar
  • Publication number: 20240001081
    Abstract: A catheter with a variable circular loop is responsive to a contraction wire for increasing the coiling of the circular loop. The shape of the loop is supported by an elongated member, wherein a radially constrictive sleeve confines the contraction wire to extends immediately alongside the length of elongated member so as to improve uniformity and minimize misshaping of the loop during contraction.
    Type: Application
    Filed: September 18, 2023
    Publication date: January 4, 2024
    Inventors: Ricardo PADILLA, Homero PADILLA, Julie BUI, Mario SOLIS, Thomas SELKEE, Jose JIMENEZ, Keshava DATTA, Fernando SALAZAR
  • Patent number: 11850051
    Abstract: A catheter is described with an end effector having densely arrayed electrodes on three loops which are arrayed in various planar configurations when the end effector is unconstrained. The end effector has first, second and third loop members, each loop member includes two spines and a connector that connects the two spines to define a loop extending away from a tubular member of the catheter such that the first, second and third loop members are configured so that each connector of each of the first, second and third loop members is in contact with only one connector of the adjacent loop member.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: December 26, 2023
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Thomas Selkee, Keshava Datta, Thanh Nguyen, Anand Rao, Rajesh Pendekanti, Meir Bar-Tal, Ricardo Padilla
  • Publication number: 20230386184
    Abstract: Provided herein are methods for automated image quality control (QC). The method comprises: generating training data based at least in part on metadata obtained from a data augmentation process; training a model for a QC task based at least in part on the training data. The model is trained using a self-supervised learning algorithm.
    Type: Application
    Filed: April 11, 2023
    Publication date: November 30, 2023
    Inventors: Ben Andrew Duffy, Gajanana Keshava Datta, Enhao Gong
  • Patent number: 11819267
    Abstract: A catheter has a two-piece tip electrode with a shell and a support structure defining a chamber, and a fluid distribution tube that extends longitudinally into the chamber, the fluid tube having fluid apertures along its length for distributing fluid more uniformly distributed throughout the chamber for improved cooling and thus minimizing the risk of char formation on regions of the tip electrode more prone to overheating.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: November 21, 2023
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Anand R. Rao, Thanh Nguyen, Keshava Datta
  • Publication number: 20230346463
    Abstract: The disclosed technology includes an electrode for a medical probe having an elongated body. At least a portion of the elongated body can be electrically conductive. The elongated body can define a lumen that extends through the elongated body along a longitudinal axis of the elongated body. The electrode can include a locking stub that extends at least partially into the lumen so that the locking stub is locked to a member inserted into the lumen.
    Type: Application
    Filed: March 16, 2023
    Publication date: November 2, 2023
    Inventors: Kevin Mark OKARSKI, Thanh NGUYEN, Abubakarr BAH, Keshava DATTA
  • Publication number: 20230346461
    Abstract: The disclosed technology includes a spine retention hub for a basket type catheter, which may include a cylindrical member including a plurality of first irrigation openings, a first portion at a distal end of the spine retention hub having a first diameter, a second portion proximate the first portion and having a curved section with a first radius of curvature in a longitudinal direction, and a third portion proximate to the second portion at a proximal end of the spine retention hub, having a third diameter that is approximately three times the first diameter, a plurality of relief lands, and a plurality of brackets. Each bracket may be disposed at the proximal end of the spine retention hub, overlap a portion of a respective relief land, and may be, along with a respective relief land, configured to receive and retain a respective spine section.
    Type: Application
    Filed: March 28, 2023
    Publication date: November 2, 2023
    Inventors: Kevin Mark OKARSKI, Abubakarr BAH, Thanh NGUYEN, Keshava DATTA
  • Publication number: 20230301712
    Abstract: The disclosed technology includes a medical probe comprising a tubular shaft extending along a longitudinal axis of the medical probe. The medical probe further comprises an expandable basket assembly coupled to the distal end of the tubular shaft. The basket assembly comprises a plurality of spines and a plurality of electrodes. The electrode comprises an electrode body that defines a lumen therethrough such that the respective spine extends through the lumen. The respective electrode body comprises two sections that define a lengthwise direction of the electrode body section that are inclined inward with respect to a central axis of the respective electrode.
    Type: Application
    Filed: February 15, 2023
    Publication date: September 28, 2023
    Inventors: Kevin Mark OKARSKI, Keshava DATTA, Abubakarr BAH, Thanh NGUYEN
  • Publication number: 20230301713
    Abstract: The disclosed technology includes an expandable basket assembly for a medical probe, which may include a single unitary structure including a plurality of spines converging at a central spine intersection. The central spine intersection being positioned on a longitudinal axis of the expandable basket assembly at a distal end thereof. The single unitary structure may include a plurality of radial cutouts with each radial cutout defining an opening in each of the plurality of spines proximate the central spine intersection so that each opening extends for a length along each spine away from the central spine intersection.
    Type: Application
    Filed: February 24, 2023
    Publication date: September 28, 2023
    Inventors: Kevin Mark OKARSKI, Keshava DATTA, Abubakarr BAH, Thanh NGUYEN
  • Publication number: 20230301707
    Abstract: The disclosed technology includes a medical probe comprising a tubular shaft extending along a longitudinal axis of the medical probe. The medical probe further comprises an expandable basket assembly coupled to the distal end of the tubular shaft. The basket assembly comprises a plurality of spines and a plurality of electrodes. The electrode comprises an electrode body that defines a lumen therethrough such that the respective spine extends through the lumen. The basket assembly comprises an electrically insulative jacket disposed between each respective spine and each respective electrode. Each electrode body and electrically insulative jacket comprises a substantially circular cross-sectional shape.
    Type: Application
    Filed: February 15, 2023
    Publication date: September 28, 2023
    Inventors: Kevin Mark OKARSKI, Keshava DATTA, Abubakarr BAH, Thanh NGUYEN
  • Patent number: 11769229
    Abstract: A computer-implemented method is provided for improving live video quality. The method comprises: (a) acquiring, using a medical imaging apparatus, a stream of consecutive image frames of a subject; (b) feeding the stream of consecutive image frames to a first set of denoising components, wherein each of the first set of denoising components is configured to denoise an image frame from the stream of consecutive image frames in a spatial domain to output an intermediate image frame; (c) feeding a plurality of the intermediate image frames to a second denoising component, wherein the second denoising component is configured to (i) denoise the plurality of the intermediate image frames in a temporal domain and (ii) generate a weight map; and outputting a final image frame with improved quality in both temporal domain and spatial domain based at least in part on the weight map.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: September 26, 2023
    Assignee: Subtle Medical, Inc.
    Inventors: Enhao Gong, Ben Andrew Duffy, Gajanana Keshava Datta, David Van Veen
  • Patent number: 11717648
    Abstract: A medical probe includes a generally tubular member with a tip portion coupled to the tubular member. A puller wire is disposed in the tubular member and configured for movement along the longitudinal axis to bend the tip portion with respect to the longitudinal axis. An anchor is disposed within the tubular member and connected to the puller wire such that the anchor has a t-bar. The t-bar includes a generally transverse extension and a ferrule connected to the puller wire. The probe includes a fiber engaged to the generally transverse extension and extending distally into the probe to increase a strength of the anchor with respect to forces applied to the puller wire to deflect the tip of the medical probe.
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: August 8, 2023
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Thanh Nguyen, Anand Rao, Joy Baybay, Keshava Datta
  • Publication number: 20230226638
    Abstract: Wiring is disclosed herein that is configured to supply IRE ablation signals through a catheter body and is resistant against dielectric breakdown, arcing, and noise during ablation. The wiring includes a highly conductive core, a conductive cover surrounding the core that has lower electrical and/or thermal conductivity than the core, and an insulative jacket surrounding the conductive cover. A catheter including such wiring may be suitable for supplying electrical signals to tissue to perform IRE ablation. In some examples, such a catheter can also be suitable for reversible electroporation and/or RF ablation.
    Type: Application
    Filed: December 14, 2022
    Publication date: July 20, 2023
    Inventors: Keshava DATTA, Anand RAO, Thanh NGUYEN, Thomas V. SELKEE
  • Publication number: 20230225783
    Abstract: The disclosed technology includes a medical probe including a tubular shaft having a proximal end and a distal end. The tubular shaft can extend along a longitudinal axis. The medical probe can include an expandable basket assembly proximate the distal end of the tubular shaft. The expandable basket assembly can include a single spine comprising a resilient material extending generally linearly along the longitudinal axis in a collapsed form and forming a spiral member defining a generally spherical outer periphery in an expanded form. One or more electrodes can be coupled to the single spine. Each electrode can include a lumen offset with respect to a centroid of the electrode so that the single spine extends through the lumen of each of the one or more electrodes.
    Type: Application
    Filed: December 14, 2022
    Publication date: July 20, 2023
    Inventors: Kevin Mark OKARSKI, Keshava DATTA, Abubakarr BAH, Thanh NGUYEN
  • Publication number: 20230225790
    Abstract: The disclosed technology includes a medical probe comprising a tubular shaft having a proximal end and a distal end, the tubular shaft extending along a longitudinal axis. The medical probe further comprises an expandable basket assembly coupled to the distal end of the tubular shaft. The basket assembly includes a plurality of electrodes with each electrode of the plurality of electrodes having a lumen therethrough. The basket assembly further includes a plurality of spines extending along the longitudinal axis and configured to bow radially outward from the longitudinal axis when the expandable basket assembly is transitioned from a collapsed form to an expanded form. Each spine includes a proximal and a distal end and a strut passing through the lumen of an electrode. The strut includes a mechanical retainer disposed on the strut to prevent the electrode from sliding proximally or distally along a length of the spine.
    Type: Application
    Filed: December 14, 2022
    Publication date: July 20, 2023
    Inventors: Kevin Mark OKARSKI, Keshava DATTA, Abubakarr BAH, Thanh NGUYEN
  • Publication number: 20230226336
    Abstract: The disclosed technology includes a medical probe including a tubular shaft having an expandable basket assembly coupled to a distal end of the tubular shaft. The basket assembly can have at least one spine extending along a longitudinal axis and configured to bow radially outward from the longitudinal axis when the basket assembly is transitioned from a collapsed form to an expanded form. The basket assembly can include electrode assemblies each attached to the spine. Each electrode assembly includes an electrode and a first and second electrically insulating portion that electrically isolate the electrode from the spine. The electrode, the first electrically insulating portion, and the second electrically insulating portion are interlocked onto the spine such that the plurality of electrode assemblies are prevented from sliding proximally or distally along a length of the spine.
    Type: Application
    Filed: December 14, 2022
    Publication date: July 20, 2023
    Inventors: Kevin Mark OKARSKI, Keshava DATTA, Abubakarr BAH, Thanh NGUYEN
  • Publication number: 20230225784
    Abstract: The disclosed technology includes a medical probe comprising a tubular shaft extending along a longitudinal axis and including a proximal end and a distal end. The medical probe further comprises an expandable basket assembly proximate the distal end of the tubular shaft. The basket assembly comprises a first unitary tripodic structure and a second unitary tripodic structure, each tripodic structure formed from a respective planar sheet of material that includes three linear spines converging at a respective central spine intersection and one or more electrodes coupled to each of the spines, each electrode defining a lumen through the electrode so that the spine extends through the lumen of each of the one or more electrodes. Each tripodic structure formed from a respective planar sheet of material that includes three linear spines converging at a respective central spine intersection.
    Type: Application
    Filed: December 14, 2022
    Publication date: July 20, 2023
    Inventors: Kevin Mark OKARSKI, Keshava DATTA, Abubakarr BAH, Thanh NGUYEN
  • Publication number: 20230225787
    Abstract: The disclosed technology includes a medical probe comprising a tubular shaft extending along a longitudinal axis and including a proximal end and a distal end. The medical probe further comprises an expandable basket assembly proximate the distal end of the tubular shaft. The basket assembly comprises a single unitary structure that includes a plurality of linear spines formed from a planar sheet of material and one or more electrodes coupled to each of the spines, each electrode defining a lumen through the electrode so that a spine extends through the lumen of each of the one or more electrodes. The spines converge at a central spine intersection at a distal end of the basket assembly. The central spine intersection includes one or more cutouts that allows for bending of the spines. Each spine comprises a respective end connected to the distal end of the tubular shaft.
    Type: Application
    Filed: December 14, 2022
    Publication date: July 20, 2023
    Inventors: Kevin Mark OKARSKI, Keshava DATTA, Abubakarr BAH, Thanh NGUYEN