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: 20250090174
    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 occlusive medical device includes an expandable frame configured to shift between a first configuration and an expanded configuration and a fabric disposed along at least a portion of the expandable frame. A drug eluting coating is disposed on the fabric, the drug eluting coating including a pharmaceutically active component dispersed within a polymeric carrier.
    Type: Application
    Filed: September 18, 2024
    Publication date: March 20, 2025
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Steven L Kangas, Edward Kopesky, Amod Shridhar Modak, Victoria Szlag
  • Publication number: 20240342348
    Abstract: A medical device may be coated with a therapeutic composition that includes a direct oral anticoagulant. An illustrative drug coating composition may comprise an excipient including polylactic acid (PLA), poly(lactic-co-glycolic acid) (PLGA), or poly(vinylidene fluoride)-co-hexafluoropropylene (PVDF-HFP) and a direct oral anticoagulant (DOAC). The illustrative drug coating may be applied to an outer surface of a medical device.
    Type: Application
    Filed: April 11, 2024
    Publication date: October 17, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Thomas John Herbst, Edward Kopesky, Steven L. Kangas, Hongxia Zeng, Aaron Cooper Foss
  • Publication number: 20240325592
    Abstract: Aqueous liquid embolic compositions, for example formed from amino acids, as well as method for making and using aqueous liquid embolic compositions are disclosed. An example aqueous liquid embolic composition may include a di-block or tri-block copolymer including a charged block and a hydrophobic block. The aqueous liquid embolic composition may also include templating agent.
    Type: Application
    Filed: March 27, 2024
    Publication date: October 3, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Nicolas Ball-Jones, Steven L. Kangas, Samuel Michael Hanson
  • Publication number: 20240325594
    Abstract: Aqueous liquid embolic compositions as well as method for making and using aqueous liquid embolic compositions are disclosed. An example aqueous liquid embolic composition may include a di-block or tri-block copolymer including a hydrophobic monomer block and a charged (polycationic or polyanionic) block. The charged (polycationic or polyanionic) block may include one or more anions. The aqueous liquid embolic composition may also include templating agent.
    Type: Application
    Filed: March 27, 2024
    Publication date: October 3, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Nicolas Ball-Jones, Victoria Szlag, Paul Vincent Grosso, Samuel Michael Hanson, Sasha Viola Rios, Steven L. Kangas, Boxin Tang
  • Publication number: 20240315984
    Abstract: The present disclosure pertains to biodegradable polymeric microspheres that comprise a biodegradable polymer and an immunotherapeutic agent selected from an inhibitor of poly ADP ribose polymerase enzyme (PARP inhibitor) and/or a Toll-like receptor (TLR) agonist wherein (a) 50% of a total amount of the immunotherapeutic agent in the biodegradable polymeric microspheres is released from the biodegradable polymeric microspheres into a 37° C. solution of PBS Tween 20 (0.05%) at a point in time ranging from 3 days and 14 days; (b) between 1 mg and 100 mg of immunotherapeutic agent per 1 g dry weight of microspheres is released from the biodegradable polymeric microspheres into a 37° C. solution of PBS Tween 20 (0.05%) at a point in time ranging from 3 days and 14 days; or (c) both (a) and (b). Other aspects of the present disclosure pertain to methods of using such microparticles and kits that contain such microparticles.
    Type: Application
    Filed: March 21, 2024
    Publication date: September 26, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Bhanu Prasanth Koppolu, Philip David Dorgan, Rhiannon Johnson, Steven L. Kangas, Nivedita Swetha Ramkumar, Matthew R. Dreher
  • 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