Patents by Inventor Steven L. Kangas

Steven L. Kangas 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: 20240115270
    Abstract: A device for permanent placement across an atrial appendage ostium in a patient includes a support structure having a contracted delivery configuration and an expanded deployed configuration defining a radially enlarged portion to permanently engage an interior wall of the atrial appendage, a membrane attached to the support structure and configured to extend across the ostium of the atrial appendage when the support structure is in the expanded deployed configuration, and a polymer coating disposed on at least one of the support structure and the membrane, the polymer coating including a direct oral anticoagulant (DOAC) dispersed in a polymer.
    Type: Application
    Filed: October 19, 2023
    Publication date: April 11, 2024
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Steven L. Kangas, Edward Kopesky, Yen-Lane Chen
  • Patent number: 11832830
    Abstract: The present disclosure relates generally to devices, systems, and methods for coil embolization, and, more particularly, to use and methods of forming coated coils. In an aspect, an embolic system may include a coil having a proximal end, a distal end, and a length therebetween slidingly disposed within a sheath. A coating may be disposed about the coil. A delivery filament may be configured to be slidingly disposed within the sheath proximal of the coil such that the coil can be ejected from the distal end of the sheath into the working lumen of a microcatheter. The coating may be configured to substantially fracture as the coil transitions from being substantially aligned with a longitudinal axis of the microcatheter to substantially misaligned with the longitudinal axis of the microcatheter upon being ejected from the microcatheter. The coating may be configured to plasticize after being ejected into an aqueous environment.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: December 5, 2023
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Ajay Gupta, Daniel K. Tomaschko, Steven L. Kangas
  • Publication number: 20230052812
    Abstract: Medical devices as wells as methods for making and using medical devices are disclosed. An example medical device may include a left atrial appendage device. The left atrial appendage device may include an expandable frame configured to shift between a first configuration and an expanded configuration. A fabric mesh may be disposed along at least a portion of the expandable frame. An anti-thrombogenic coating may be disposed along the fabric mesh.
    Type: Application
    Filed: October 14, 2022
    Publication date: February 16, 2023
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: STEVEN L. KANGAS, EDWARD KOPESKY, YEN-LANE CHEN
  • Publication number: 20230011767
    Abstract: A device for permanent placement across an atrial appendage ostium in a patient includes a support structure having a contracted delivery configuration and an expanded deployed configuration defining a radially enlarged portion to permanently engage an interior wall of the atrial appendage, a membrane attached to the support structure and configured to extend across the ostium of the atrial appendage when the support structure is in the expanded deployed configuration, and a polymer coating disposed on at least one of the support structure and the membrane, the polymer coating including a direct oral anticoagulant (DOAC) dispersed in a polymer.
    Type: Application
    Filed: July 8, 2022
    Publication date: January 12, 2023
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Steven L. Kangas, Edward Kopesky, Yen-Lane Chen
  • Patent number: 11484320
    Abstract: Medical devices as wells as methods for making and using medical devices are disclosed. An example medical device may include a left atrial appendage device. The left atrial appendage device may include an expandable frame configured to shift between a first configuration and an expanded configuration. A fabric mesh may be disposed along at least a portion of the expandable frame. An anti-thrombogenic coating may be disposed along the fabric mesh.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: November 1, 2022
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Steven L. Kangas, Edward Kopesky, Yen-Lane Chen
  • Publication number: 20220151628
    Abstract: The present disclosure relates generally to devices, systems, and methods for coil embolization, and, more particularly, to use and methods of forming coated coils. In an aspect, an embolic system may include a coil having a proximal end, a distal end, and a length therebetween slidingly disposed within a sheath. A coating may be disposed about the coil. A delivery filament may be configured to be slidingly disposed within the sheath proximal of the coil such that the coil can be ejected from the distal end of the sheath into the working lumen of a microcatheter. The coating may be configured to substantially fracture as the coil transitions from being substantially aligned with a longitudinal axis of the microcatheter to substantially misaligned with the longitudinal axis of the microcatheter upon being ejected from the microcatheter. The coating may be configured to plasticize after being ejected into an aqueous environment.
    Type: Application
    Filed: November 18, 2021
    Publication date: May 19, 2022
    Inventors: Ajay Gupta, Daniel K. Tomaschko, Steven L. Kangas
  • Patent number: 11090267
    Abstract: In accordance with one aspect, embolic particles are provided which comprise sub-particles that comprise a therapeutic agent of low solubility dispersed in a matrix that comprises a biodegradable polymer. Other aspects pertain to injectable compositions that comprise such particles and to methods of treatment that employ such injectable compositions. Still other aspects pertain to methods of making such particles.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: August 17, 2021
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventor: Steven L. Kangas
  • Publication number: 20210186516
    Abstract: Medical devices as wells as methods for making and using medical devices are disclosed. An example medical device may include a left atrial appendage device. The left atrial appendage device may include an expandable frame configured to shift between a first configuration and an expanded configuration. A fabric mesh may be disposed along at least a portion of the expandable frame. An anti-thrombogenic coating may be disposed along the fabric mesh.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 24, 2021
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: STEVEN L. KANGAS, EDWARD KOPESKY, YEN-LANE CHEN
  • Publication number: 20200093743
    Abstract: In accordance with one aspect, embolic particles are provided which comprise sub-particles that comprise a therapeutic agent of low solubility dispersed in a matrix that comprises a biodegradable polymer. Other aspects pertain to injectable compositions that comprise such particles and to methods of treatment that employ such injectable compositions. Still other aspects pertain to methods of making such particles.
    Type: Application
    Filed: September 30, 2019
    Publication date: March 26, 2020
    Inventor: Steven L. Kangas
  • Patent number: 10575855
    Abstract: Medical devices and methods for forming the medical devices are disclosed in the present application. In one illustrative example an occlusion balloon comprises an outer balloon member, and an inner balloon member having an inner wall and an outer wall and extending through at least a portion of the outer balloon member. In at least some examples, when forces acting on the inner wall of the inner balloon member equal forces acting on the outer wall of the inner balloon member, the inner balloon member defines a lumen.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: March 3, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Cass A. Hanson, Joseph M. Connolly, Katherine Routh, Jaydeep Y. Kokate, Gary J. Pederson, Derek C. Sutermeister, Michele C. Tessmer, Jeffrey S. Lindquist, Robert N. Squire, Steven L. Kangas, David Raab, Joel Munsinger, Derek K. Larson, Martin R. Willard
  • Patent number: 10531945
    Abstract: Systems and methods for performing transcatheter coronary artery bypass grafting procedures are provided. The methods generally involve passing the graft from the aorta to the coronary artery through the pericardial space. The systems include poke-out wires, a coring device, and devices for forming anastomoses at the proximal and distal ends of a vascular graft.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: January 14, 2020
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Annamaria Szabolcs, Jeffrey W. Reineke, Andrew D. Bicek, John R. Ballard, Steven L. Kangas
  • Patent number: 10471012
    Abstract: Polymer microspheres for embolizing blood vessels and optionally delivering therapeutic agents are provided. The microspheres include PLGA 50:50 and/or Ptx, and are generally formed by emulsion means.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: November 12, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Hongxia Zeng, Steven L. Kangas, Yen-Lane Chen
  • Patent number: 10456361
    Abstract: In accordance with one aspect, embolic particles are provided which comprise sub-particles that comprise a therapeutic agent of low solubility dispersed in a matrix that comprises a biodegradable polymer. Other aspects pertain to injectable compositions that comprise such particles and to methods of treatment that employ such injectable compositions. Still other aspects pertain to methods of making such particles.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: October 29, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Steven L. Kangas
  • Patent number: 10098650
    Abstract: A system and method for treating atherosclerotic plaque. The system includes a first catheter including an expandable balloon and a second catheter including a lumen in fluid communication with a distal hole. The method includes inserting the first catheter into a body lumen adjacent to a plaque formation, and deploying a balloon from the first catheter adjacent to the plaque formation. In addition, the method includes inserting the second catheter adjacent to the first catheter, and routing the distal end portion of second catheter along at least a portion of the deployed balloon of the first catheter. Further, the method includes routing at least a portion of the second catheter into a subintimal space adjacent to the atherosclerotic plaque. Furthermore, the method includes injecting a therapeutic agent into the subintimal space adjacent to the atherosclerotic plaque.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: October 16, 2018
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Steven L. Kangas, Yen-Lane Chen
  • Publication number: 20160331564
    Abstract: In embodiments, medical devices, such balloon catheters or stents, can deliver a therapeutic agent to body tissue of a patient. The medical device a therapeutic coating comprising a polydopamine coated therapeutic agent disposed on a surface of the expandable medical device. In some instances, the therapeutic agent may comprise everolimus.
    Type: Application
    Filed: May 13, 2016
    Publication date: November 17, 2016
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventor: STEVEN L. KANGAS
  • Publication number: 20160287259
    Abstract: Medical devices and methods for forming the medical devices are disclosed in the present application. In one illustrative example an occlusion balloon comprises an outer balloon member, and an inner balloon member having an inner wall and an outer wall and extending through at least a portion of the outer balloon member. In at least some examples, when forces acting on the inner wall of the inner balloon member equal forces acting on the outer wall of the inner balloon member, the inner balloon member defines a lumen.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 6, 2016
    Inventors: Cass A. Hanson, Joseph M. Connolly, Katherine Routh, Jaydeep Y. Kokate, Gary J. Pederson, Derek C. Sutermeister, Michele C. Tessmer, Jeffrey S. Lindquist, Robert N. Squire, Steven L. Kangas, David Raab, Joel Munsinger, Derek K. Larson, Martin R. Willard
  • Publication number: 20160262917
    Abstract: A medical device includes a tubular network of struts including a bioerodible polymer. The tubular network can include a plurality of bands and a plurality of connector struts. Each band can include a plurality of peaks between adjacent band struts. Each band can be connected to one or more adjacent bands by at least two connector struts at a plurality of connector intersections. The bioerodible polymer can include a plurality of polymer chains functionalized with a photo active group.
    Type: Application
    Filed: March 10, 2016
    Publication date: September 15, 2016
    Inventors: JOHN J. CHEN, STEVEN L. KANGAS, YEN-LANE CHEN, HONGXIA ZENG, RAGHAV GOEL
  • Publication number: 20160228126
    Abstract: Medical devices and methods for forming the medical devices are disclosed in the present application. In one illustrative example, a medical device may comprise a catheter shaft extending from a proximal end to a distal end and may include a plurality of lumens extending through at least a portion of the catheter shaft. In some examples, the medical device may further include a balloon member disposed proximate the distal end of the catheter shaft, and the catheter shaft may comprise a frangible portion disposed proximate the distal end of the catheter shaft.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 11, 2016
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Robert N. Squire, Jeffrey S. Lindquist, Kent D. Harrison, Daniel J. Horn, Steven L. Kangas
  • Publication number: 20160220490
    Abstract: Polymer microspheres for embolizing blood vessels and optionally delivering therapeutic agents are provided. The microspheres include PLGA 50:50 and/or Ptx, and are generally formed by emulsion means.
    Type: Application
    Filed: January 4, 2016
    Publication date: August 4, 2016
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Hongxia Zeng, Steven L. Kangas, Yen-Lane Chen
  • Publication number: 20160213462
    Abstract: Systems and methods for performing transcatheter coronary artery bypass grafting procedures are provided. The methods generally involve passing the graft from the aorta to the coronary artery through the pericardial space. The systems include poke-out wires, a coring device, and devices for forming anastomoses at the proximal and distal ends of a vascular graft.
    Type: Application
    Filed: January 22, 2016
    Publication date: July 28, 2016
    Inventors: Annamaria Szabolcs, Jeffrey W. Reineke, Andrew D. Bicek, John R. Ballard, Steven L. Kangas