Patents by Inventor B. Kumar

B. Kumar 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: 12232991
    Abstract: Loading systems for prosthetic heart valve devices are disclosed. A loading funnel is provided within a watertight interior space that is at least partially filled or fillable with biocompatible fluid. Funnel may have a cylindrical end to which is connected a delivery catheter having a lumen that will receive the collapsed prosthetic heart valve device. An expanded prosthetic heart valve device may be placed within the funnel and pushed or pulled into the funnel which provides a predictable, reliable and repeatable surface for collapsing the prosthetic heart valve device. Ultimately the prosthetic heart valve device is collapsed and translated into the lumen of the delivery catheter for further translation therealong and release into the heart chamber of interest.
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: February 25, 2025
    Assignee: 4C Medical Technologies, Inc.
    Inventors: Jason S. Diedering, Saravana B. Kumar
  • Publication number: 20250057652
    Abstract: The present invention provides a prosthetic heart valve device with improved fit and/or apposition between the device frame and left atrial tissue and/or the device base and the annular tissue of the left atrium to improve shifting of the implanted device and/or mitigate paravalvular leakage. The improved fit and/or apposition arises in various embodiments by providing or allowing an asymmetrical frame and/or frame base and/or providing a lower lip to aid in conforming to the asymmetrical shape of the atrium and/or ensure firm positioning therein. An additional benefit of these arrangement(s) is mitigation of paravalvular leakage as a result of improved fit and seal. In certain embodiments, the asymmetry of the frame assists with delivery of the device into the atrium.
    Type: Application
    Filed: June 20, 2024
    Publication date: February 20, 2025
    Inventors: Saravana B. Kumar, Steven D. Kruse, Jeffrey R. Stone
  • Publication number: 20250049564
    Abstract: A collapsible and expandable prosthetic mitral valve stent is provided with improved recapture into a distal lumen of a delivery sheath. Various embodiments comprise a valve support within the interior of a stent frame and defining a flow channel therethrough, wherein the top or upstream of the valve support comprises a row, or a plurality, of stent cells that are bent radially inward at least partially over the flow channel. Some embodiments may comprise a recapture assist mechanism, such as an open paddle, attached to one or more of the inwardly bent stent cells and adapted to receive and/or engage a wire to aid in positioning, expansion, recapture and/or implanting the device in a patient's heart chamber.
    Type: Application
    Filed: April 18, 2024
    Publication date: February 13, 2025
    Inventors: Jonathan Berndt, Sounthara Khouengboua, Saravana B. Kumar, Jaqueline Wendel, Jason S. Diedering
  • Patent number: 12164748
    Abstract: The present disclosure generally relates to logging user activities during a subset of a recurring time period. In some embodiments, based on received physiological data, a computer system enables logging of one or more user activities to be performed during a subset of a recurring time period. In some embodiments, based on performance of the one or more user activities during a subset of a recurring time period, a computer system enables logging of one or more user activities to be performed during a subset of a recurring time period for a predetermined period of time.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: December 10, 2024
    Assignee: Apple Inc.
    Inventors: Aneesha Narra, Justin P. Dobson, Ottavia Golfetto, Shonn P. Hendee, Rajiv B. Kumar, Tal Lorberbaum, Ron D. Lue-Sang, Divya Nag, Andrew Plummer, Heather R. Schnek, Ryan D. Shelby, Jonathan C. Stemmle, Connie V. Tung
  • Publication number: 20240341952
    Abstract: An expandable and collapsible stent comprising prosthetic leaflets attached to an inner valve support section that extends radially upward into an outer stent section. A transition stent section is disposed between the inner valve support section and the outer stent section. Each of the outer stent section, the inner valve support section and the transition stent section may comprise struts or the equivalent that form and define cells having a pattern, wherein each section may comprise a different cell pattern. Transition stent section preferably comprises struts that are of equal curvature, with adjacent struts equally spaced from each other to allow nested collapsing of the transition stent section struts. A boss section extending downstream away from the inner valve support section may be provided to aid in alignment and retention of the expanded stent and may comprise a shape that is complementary to a heart chamber annulus.
    Type: Application
    Filed: November 9, 2023
    Publication date: October 17, 2024
    Inventors: Steven D. Kruse, Jeffrey W. Chambers, Jason S. Diedering, Saravana B. Kumar
  • Patent number: 12053375
    Abstract: The present invention provides a prosthetic heart valve device with improved fit and/or apposition between the device frame and left atrial tissue and/or the device base and the annular tissue of the left atrium to improve shifting of the implanted device and/or mitigate paravalvular leakage. The improved fit and/or apposition arises in various embodiments by providing or allowing an asymmetrical frame and/or frame base and/or providing a lower lip to aid in conforming to the asymmetrical shape of the atrium and/or ensure firm positioning therein. An additional benefit of these arrangement(s) is mitigation of paravalvular leakage as a result of improved fit and seal. In certain embodiments, the asymmetry of the frame assists with delivery of the device into the atrium.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: August 6, 2024
    Assignee: 4C Medical Technologies, Inc.
    Inventors: Saravana B. Kumar, Steven D. Kruse, Jeffrey R. Stone
  • Publication number: 20240252316
    Abstract: Embodiments of delivery systems, devices and methods for delivering a prosthetic heart valve device to a heart chamber for expanded implementation are disclosed. More specifically, methods, systems and devices are disclosed for delivering a self-expanding prosthetic mitral valve device to the left atrium, with no engagement of the left ventricle, the native mitral valve leaflets or the annular tissue downstream of the upper annular surface during delivery, and in some embodiments with no engagement of the ventricle, mitral valve leaflets and/or annular tissue located downstream of the upper annular surface by the delivered, positioned and expanded prosthetic mitral valve device.
    Type: Application
    Filed: November 8, 2023
    Publication date: August 1, 2024
    Inventors: Jeffrey W. Chambers, Gregory G. Brucker, Joseph P. Higgins, Saravana B. Kumar, Jason S. Diedering, Karl A. Kabarowski, Robert J. Thatcher, James E. Flaherty, Jeffrey R. Stone
  • Publication number: 20240242840
    Abstract: The present disclosure generally relates to logging health-related events and for health-related coaching. In some embodiments, an event is logged by associating an action with a specific time and a user sentiment. In some embodiments, an event challenge, associated with a log entry, is transmitted to an external electronic device.
    Type: Application
    Filed: January 19, 2024
    Publication date: July 18, 2024
    Inventors: Rajiv B. KUMAR, Susie H. BUI, Louis CHATTA, Kelsey D. VARBEL, Justin P. DOBSON, Shonn P. HENDEE, Brett L. LAREAU, Tal LORBERBAUM, Helen T. VO
  • Patent number: 12036113
    Abstract: The invention relates to prosthetic heart valves comprising a stent frame with valve support disposed or inverted at least partially within the stent frame, wherein the valve support is at least partially within the interior of the stent frame. The inverted configuration comprises a maximum number of layers of material in cross section where the stent frame and valve support overlap. The maximum number of cross-sectional layers of material structure may be reduced to, e.g., two layers of material to reduce outer diameter during delivery by everting the valve portion to a position located outside of the stent portion, followed by inverted reconfiguration back to the inverted anchoring structure after delivery from the lumen of the delivery catheter to the heart chamber.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: July 16, 2024
    Assignee: 4C Medical Technologies, Inc.
    Inventor: Saravana B. Kumar
  • Patent number: 12029647
    Abstract: Devices and methods for supplementing and/or replacing native cardiac valve functionality, e.g., the mitral valve with a single prosthetic leaflet. An exemplary device is directed to dysfunctional mitral valves. In some cases, the entire device, including the single prosthetic leaflet, will be arranged entirely above the dysfunctional mitral valves and, therefore, disposed entirely within the left atrium. In other cases, the valve support and/or single prosthetic leaflet may extend a distance into the annulus between the left atrium and left ventricle. In some cases, the device will not physically interact with the native leaflets. In other cases, the device may physically interact with the native leaflets.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: July 9, 2024
    Assignee: 4C Medical Technologies, Inc.
    Inventors: Jeffrey W. Chambers, Saravana B. Kumar, Joseph P. Higgins, Robert J. Thatcher, Jason S. Diedering, Jeffrey R. Stone
  • Patent number: 12001648
    Abstract: The present disclosure generally relates to logging user activities during a subset of a recurring time period. In some embodiments, based on received physiological data, a computer system enables logging of one or more user activities to be performed during a subset of a recurring time period. In some embodiments, based on performance of the one or more user activities during a subset of a recurring time period, a computer system enables logging of one or more user activities to be performed during a subset of a recurring time period for a predetermined period of time.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: June 4, 2024
    Assignee: Apple Inc.
    Inventors: Aneesha Narra, Justin P. Dobson, Ottavia Golfetto, Shonn P. Hendee, Rajiv B. Kumar, Tal Lorberbaum, Ron D. Lue-Sang, Divya Nag, Andrew Plummer, Heather R. Schneck, Ryan D. Shelby, Jonathan C. Stemmle, Connie V. Tung
  • Patent number: 12002588
    Abstract: The present disclosure generally relates to logging health-related events and for health-related coaching. In some embodiments, an event is logged by associating an action with a specific time and a user sentiment. In some embodiments, an event challenge, associated with a log entry, is transmitted to an external electronic device.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: June 4, 2024
    Assignee: Apple Inc.
    Inventors: Rajiv B. Kumar, Susie H. Bui, Louis Chatta, Kelsey Dedoshka, Justin P. Dobson, Shonn P. Hendee, Brett L Lareau, Jay C. Mung, Andrew Plummer, Ryan D. Shelby, Helen T. Vo
  • Patent number: 11980448
    Abstract: Systems and methods of maternal and fetal monitoring include acquiring ultrasound physiological data with an ultrasound transducer. A plurality of electrodes acquire biopotential physiological data from the skin of a patient. A controller receives the ultrasound and biopotential physiological data and calculates fetal heart rate (fHR) values, maternal heart rate (mHR) values, and uterine activity (UA) values from the ultrasound and biopotential physiological data.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: May 14, 2024
    Assignee: GE Precision Healthcare LLC
    Inventor: Kiran B. Kumar
  • Publication number: 20240148363
    Abstract: An ultrasound system includes a transducer array including a flexible substrate, ultrasound transducer elements disposed on the flexible substrate and configured to transmit and acquire ultrasound signals that propagate in a body of a patient, and strain sensors coupled to or integrated into the flexible substrate and configured to measure a strain in the flexible substrate generated by flexing the flexible substrate. The ultrasound system also includes a processor coupled to the ultrasound transducer elements and the strain sensors, wherein the processor is configured to process the signals acquired by the ultrasound transducer elements based at least in part on the strain measured by the strain sensors.
    Type: Application
    Filed: November 8, 2022
    Publication date: May 9, 2024
    Applicant: GE Precision Healthcare LLC
    Inventors: Steven M. Falk, Sivaramanivas Ramaswamy, Nagapriya Kavoori Sethumadhavan, Vijith Venugopalan, Kiran B. Kumar, Karen P. Becker, Dianne R. Kessler
  • Publication number: 20240138976
    Abstract: Apparatus and methods for a prosthetic heart valve are provided. The apparatus may include a prosthetic heart-valve fitting. The fitting may be seated in a valve annulus of the heart. The fitting may be a fitting that does not include a tissue-penetrating anchor. The fitting may be a fitting that does not include a tissue-penetrating barb. The apparatus may include a brace. The brace may be urged by an atrial tissue of the heart to maintain a position of the fitting in the annulus.
    Type: Application
    Filed: June 19, 2023
    Publication date: May 2, 2024
    Inventors: Jonathan Berndt, Jeffrey W. Chambers, Jason S. Diedering, Olivia Johnson, Shelby Jo Byron, Saravana B. Kumar, Jaqueline Wendel
  • Patent number: 11957577
    Abstract: Embodiments of delivery systems, devices and methods for delivering a prosthetic heart valve device to a heart chamber for expanded implementation are disclosed. More specifically, methods, systems and devices are disclosed for delivering a self-expanding prosthetic mitral valve device to the left atrium, with no engagement of the left ventricle, the native mitral valve leaflets or the annular tissue downstream of the upper annular surface during delivery, and in some embodiments with no engagement of the ventricle, mitral valve leaflets and/or annular tissue located downstream of the upper annular surface by the delivered, positioned and expanded prosthetic mitral valve device.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: April 16, 2024
    Assignee: 4C Medical Technologies, Inc.
    Inventors: Jeffrey W. Chambers, Gregory G. Brucker, Joseph P. Higgins, Saravana B. Kumar, Jason S. Diedering, Karl A. Kabarowski, Robert J. Thatcher, James E. Flaherty, Jeffrey R. Stone
  • Publication number: 20240053862
    Abstract: The present disclosure generally relates to logging user activities during a subset of a recurring time period. In some embodiments, based on received physiological data, a computer system enables logging of one or more user activities to be performed during a subset of a recurring time period. In some embodiments, based on performance of the one or more user activities during a subset of a recurring time period, a computer system enables logging of one or more user activities to be performed during a subset of a recurring time period for a predetermined period of time.
    Type: Application
    Filed: July 14, 2023
    Publication date: February 15, 2024
    Inventors: Aneesha NARRA, Justin P. DOBSON, Andrew PLUMMER, Shonn P. HENDEE, Rajiv B. KUMAR, Tal LORBERBAUM, Ron D. LUE-SANG, Divya NAG, Andrew PLUMMER, Heather R. SCHNEK, Ryan D. SHELBY, Jonathan C. STEMMLE, Connie V. TUNG
  • Publication number: 20240035590
    Abstract: In a segmented ball valve for low noise and anti-cavitation applications, a replaceable cartridge is fixed inside and retained by stem and end post. The segment has a machined cylindrical bore with a slide-fit noise cartridge, enabling field replaceability with minor effort & without need of welding or fasteners. The replaceable cartridge also enables use of a fully cylindrical cartridge with greater pressure reduction stages compared to welded-on noise plates on the segment. The segment has a flattened front face resulting in lower Fd enabled by dual flow path in lower openings values thereby attaining higher noise attenuation where the cartridge is not required. The curved plates of the low noise and anti-cavitation cartridge enable: expanding flow resulting in non-impinging jet streams thereby achieving higher noise attenuation in one direction; and converging flow in the opposite direction resulting in reduction of flow energy, and the potential for cavitation for liquids.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 1, 2024
    Inventors: Mathew Varghese, Pramod B. Kumar, Sarath Ks, Sreeharsha Paramashivaiah
  • Patent number: 11857441
    Abstract: A device and method for predictably and controlling the collapsing of a collapsible and expandable stent for subsequent translation through a delivery sheath lumen to an anatomical target such as a heart valve or intravascular location for expansion and implantation. The loading device defines in inner lumen comprising a successively decreasing, from the proximal to the distal direction, inner diameter to a region of constant inner diameter wherein the stent is in a collapsed configuration. The device and method may provide for an at least partially collapsed configuration of the stent that may be further collapsed as a part of the implantation procedure and may comprise a stent that is pre-loaded for future use.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: January 2, 2024
    Assignee: 4C Medical Technologies, Inc.
    Inventors: Jason S. Diedering, Saravana B. Kumar
  • Publication number: 20230372089
    Abstract: A collapsible and expandable prosthetic heart valve stent is provided that may be adapted to provide a one-way blood flow therethrough that targets blood flow at the posterior lateral side of a ventricle to enable a natural blood flow to persist post-implant.
    Type: Application
    Filed: May 23, 2023
    Publication date: November 23, 2023
    Inventor: Saravana B. Kumar