Patents by Inventor Raj Subramaniam

Raj Subramaniam 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: 20250090155
    Abstract: A suture retention device includes a housing having one or more suture slots. The device also includes a plunger with suture slots. The plunger is slidably disposed in a channel in the housing and when the housing suture slots are aligned with the plunger suture slots, a suture filament may be disposed in the slots. When the plunger is actuated so that the housing suture slots are misaligned with the plunger suture slots, the suture filament is captured between the plunger and the housing preventing movement of the suture filament.
    Type: Application
    Filed: December 2, 2024
    Publication date: March 20, 2025
    Inventors: Raj Subramaniam, Robert Quintos, Shashank Raina
  • Patent number: 12185929
    Abstract: A suture retention device includes a housing having one or more suture slots. The device also includes a plunger with suture slots. The plunger is slidably disposed in a channel in the housing and when the housing suture slots are aligned with the plunger suture slots, a suture filament may be disposed in the slots. When the plunger is actuated so that the housing suture slots are misaligned with the plunger suture slots, the suture filament is captured between the plunger and the housing preventing movement of the suture filament.
    Type: Grant
    Filed: August 24, 2023
    Date of Patent: January 7, 2025
    Assignee: DRS Vascular, Inc.
    Inventors: Raj Subramaniam, Robert Quintos, Shashank Raina
  • Publication number: 20240307045
    Abstract: A suture retention device includes a housing having one or more suture slots. The device also includes a plunger with suture slots. The plunger is slidably disposed in a channel in the housing and when the housing suture slots are aligned with the plunger suture slots, a suture filament may be disposed in the slots. When the plunger is actuated so that the housing suture slots are misaligned with the plunger suture slots, the suture filament is captured between the plunger and the housing preventing movement of the suture filament.
    Type: Application
    Filed: August 24, 2023
    Publication date: September 19, 2024
    Applicant: DRS Vascular, Inc.
    Inventors: Raj Subramaniam, Robert Quintos, Shashank Raina
  • Publication number: 20240293126
    Abstract: A device for sealing a left atrial appendage includes an anchor element, a sealing element, and a coupling element. The anchor element is configured to anchor the device to tissue in or adjacent the left atrial appendage. The sealing element is configured to seal the left atrial appendage and prevent thrombus from embolizing therefrom. The coupling element joins the anchor element with the sealing element. A delivery catheter may be used to deliver the sealing device.
    Type: Application
    Filed: February 6, 2024
    Publication date: September 5, 2024
    Inventors: Raj Subramaniam, Zaya Tun, Robert Quintos
  • Publication number: 20220331560
    Abstract: A steerable sheath includes an elongate shaft, a handle, an actuator element on the handle, and a plurality of control wires operably coupled to the elongate shaft and the actuator element. Actuation of the actuator element adjusts a shape of a proximal curve and a distal curve on the elongate shaft.
    Type: Application
    Filed: May 3, 2022
    Publication date: October 20, 2022
    Inventors: Raj Subramaniam, Zaya Tun, Robert Quintos
  • Patent number: 11344702
    Abstract: A steerable sheath includes an elongate shaft, a handle, an actuator element on the handle, and a plurality of control wires operably coupled to the elongate shaft and the actuator element. Actuation of the actuator element adjusts a shape of a proximal curve and a distal curve on the elongate shaft.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: May 31, 2022
    Assignee: Vizaramed, Inc.
    Inventors: Raj Subramaniam, Zaya Tun, Robert Quintos
  • Publication number: 20210298764
    Abstract: A device for sealing a left atrial appendage includes an anchor element, a sealing element, and a coupling element. The anchor element is configured to anchor the device to tissue in or adjacent the left atrial appendage. The sealing element is configured to seal the left atrial appendage and prevent thrombus from embolizing therefrom. The coupling element joins the anchor element with the sealing element. A delivery catheter may be used to deliver the sealing device.
    Type: Application
    Filed: March 19, 2021
    Publication date: September 30, 2021
    Inventors: Raj Subramaniam, Zaya Tun, Robert Quintos
  • Publication number: 20210177514
    Abstract: A device for treating tissue has a plurality of conductors that form one or more transmission lines configured to deliver microwave energy to target tissue. In addition to transmission lines, the device also may include an anchor element used to penetrate the target ablation tissue and anchor the device. A system includes the device, a microwave generator, and a coaxial cable. A biocompatible solution may be injected into the target ablation region to alter tissue properties or to facilitate visualization of the ablation region.
    Type: Application
    Filed: November 20, 2020
    Publication date: June 17, 2021
    Inventors: Raj Subramaniam, Jessi Johnson, Mariam H. Taimisto
  • Publication number: 20210031006
    Abstract: A steerable sheath includes an elongate shaft, a handle, an actuator element on the handle, and a plurality of control wires operably coupled to the elongate shaft and the actuator element. Actuation of the actuator element adjusts a shape of a proximal curve and a distal curve on the elongate shaft.
    Type: Application
    Filed: July 31, 2020
    Publication date: February 4, 2021
    Inventors: Raj Subramaniam, Zaya Tun, Robert Quintos
  • Publication number: 20190209179
    Abstract: A device for sealing a left atrial appendage includes an anchor element, a sealing element, and a coupling element. The anchor element is configured to anchor the device to tissue in or adjacent the left atrial appendage. The sealing element is configured to seal the left atrial appendage and prevent thrombus from embolizing therefrom. The coupling element joins the anchor element with the sealing element. A delivery catheter may be used to deliver the sealing device.
    Type: Application
    Filed: November 16, 2018
    Publication date: July 11, 2019
    Inventors: Raj Subramaniam, Zaya Tun, Robert Quintos
  • Publication number: 20190183512
    Abstract: A device for sealing a left atrial appendage includes an anchor element, a sealing element, and a coupling element. The anchor element is configured to anchor the device to tissue in or adjacent the left atrial appendage. The sealing element is configured to seal the left atrial appendage and prevent thrombus from embolizing therefrom. The coupling element joins the anchor element with the sealing element. A delivery catheter may be used to deliver the sealing device.
    Type: Application
    Filed: November 16, 2018
    Publication date: June 20, 2019
    Inventors: Raj Subramaniam, Zaya Tun, Robert Quintos
  • Patent number: 9757177
    Abstract: The disclosure pertains to an intravascular catheter for nerve modulation, comprising an elongate member having a proximal end and a distal end, a balloon having a lumen and a balloon wall, the balloon wall comprising RF permeable sections and non-electrically conductive sections, an electrode disposed within the balloon and extending distally to the furthest distal RF permeable section. The RF permeable sections may comprise a plurality of RF permeable windows, each window having a greater circumferential dimension than an axial dimension. The intravascular system is suited for modulation of renal nerves.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: September 12, 2017
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Raj Subramaniam, Zaya Tun, Daniel J. Horn, Derek C. Sutermeister, James M. Anderson, Jeffrey S. Lindquist, Kent D. Harrison
  • Patent number: 9687166
    Abstract: Devices, systems, and methods for performing a mapping procedure on body tissue are disclosed. An example mapping device for mapping a tissue surface includes an elongate shaft and an electrode assembly. The electrode assembly includes a plurality of splines and a plurality of electrodes disposed on at least some of the splines. The electrode assembly is capable of moving between a collapsed configuration and an expanded configuration. In the expanded configuration, the electrode assembly may have a generally planar structure.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: June 27, 2017
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Raj Subramaniam, Josef V. Koblish
  • Patent number: 9603659
    Abstract: Devices, systems, and methods for performing ablation therapy on body tissue are disclosed. An example ablation device for treating body tissue includes an ionically conductive balloon and a radio-frequency electrode that delivers RF energy into a distal section of the balloon. The balloon can have a composite structure with a non-conductive section and a conductive section. A method for fabricating a semi-permeable ablation balloon using ionizing radiation and an etching process is also disclosed.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 28, 2017
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Raj Subramaniam, Josef V. Koblish, Zaya Tun, Guy R. Harvey, Minhchau N. Cao, Kurt D. Sparks
  • Publication number: 20160331432
    Abstract: The disclosure pertains to an intravascular catheter for nerve modulation, comprising an elongate member having a proximal end and a distal end, a balloon having a lumen and a balloon wall, the balloon wall comprising RF permeable sections and non-electrically conductive sections, an electrode disposed within the balloon and extending distally to the furthest distal RF permeable section. The RF permeable sections may comprise a plurality of RF permeable windows, each window having a greater circumferential dimension than an axial dimension. The intravascular system is suited for modulation of renal nerves.
    Type: Application
    Filed: July 25, 2016
    Publication date: November 17, 2016
    Inventors: RAJ SUBRAMANIAM, ZAYA TUN, DANIEL J. HORN, DEREK C. SUTERMEISTER, JAMES M. ANDERSON, JEFFREY S. LINDQUIST, KENT D. HARRISON
  • Patent number: 9486280
    Abstract: Devices, systems, and methods for performing ablation therapy on body tissue are disclosed. An example ablation device for treating body tissue includes an ionically conductive balloon and a radio-frequency electrode that delivers RF energy into a distal section of the balloon. The balloon can have a composite structure with a non-conductive section and a conductive section. The ablation device can have a steering mechanism configured to deflect the balloon.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: November 8, 2016
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Josef V. Koblish, Raj Subramaniam
  • Patent number: 9463064
    Abstract: Devices, systems, and methods for performing ablation therapy on body tissue are disclosed. An example ablation device for treating body tissue includes an ionically conductive balloon and a radio-frequency electrode that delivers RF energy into a distal section of the balloon. The balloon is configured to transmit the RF energy in a direction distally towards a leading end of the ablation device. Multiple ablation electrodes on the device can be used for providing lesions of different size or shape.
    Type: Grant
    Filed: September 6, 2015
    Date of Patent: October 11, 2016
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Raj Subramaniam, Josef V. Koblish, Zaya Tun, Guy R. Harvey, Minhchau N. Cao, Kurt D. Sparks
  • Patent number: 9433760
    Abstract: The disclosure pertains to an intravascular catheter for nerve modulation, comprising an elongate member having a proximal end and a distal end, a balloon having a lumen and a balloon wall, the balloon wall comprising RF permeable sections and non-electrically conductive sections, an electrode disposed within the balloon and extending distally to the furthest distal RF permeable section. The RF permeable sections may comprise a plurality of RF permeable windows, each window having a greater circumferential dimension than an axial dimension. The intravascular system is suited for modulation of renal nerves.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: September 6, 2016
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Raj Subramaniam, Zaya Tun, Daniel J. Horn, Derek C. Sutermeister, James M. Anderson, Jeffrey S. Lindquist, Kent D. Harrison
  • Publication number: 20150374436
    Abstract: Devices, systems, and methods for performing ablation therapy on body tissue are disclosed. An example ablation device for treating body tissue includes an ionically conductive balloon and a radio-frequency electrode that delivers RF energy into a distal section of the balloon. The balloon is configured to transmit the RF energy in a direction distally towards a leading end of the ablation device. Multiple ablation electrodes on the device can be used for providing lesions of different size or shape.
    Type: Application
    Filed: September 6, 2015
    Publication date: December 31, 2015
    Inventors: Raj Subramaniam, Joseph V. Koblish, Zaya Tun, Guy R. Harvey, Minhchau N. Cao, Kurt D. Sparks
  • Publication number: 20150265348
    Abstract: A radio frequency (RF) ablation system and methods for using the radio frequency ablation system are disclosed. The RF ablation system may include an elongated member, an RF generator, and a processor. The elongated member may include a distal portion including one or more electrodes and the RF generator may be operatively coupled to one or more of the electrodes. The processor, which may be coupled to one or more of the electrodes, may obtain an output signal from the electrodes and may monitor changes in a frequency spectra of an electrical signal received with the output signal. The processor may determine a level of one or more characteristics that are proportional to an amplitude of the electrical signal, proportional to the frequency of the electrical signal, or proportional to both of the amplitude and the frequency of the electrical signal.
    Type: Application
    Filed: March 18, 2015
    Publication date: September 24, 2015
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: BOAZ AVITALL, JOSEF V. KOBLISH, MICHAL WEISMAN, RAJ SUBRAMANIAM