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).
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Publication number: 20240115270Abstract: 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: ApplicationFiled: October 19, 2023Publication date: April 11, 2024Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Steven L. Kangas, Edward Kopesky, Yen-Lane Chen
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Patent number: 11832830Abstract: 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: GrantFiled: November 18, 2021Date of Patent: December 5, 2023Assignee: Boston Scientific Scimed, Inc.Inventors: Ajay Gupta, Daniel K. Tomaschko, Steven L. Kangas
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Publication number: 20230052812Abstract: 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: ApplicationFiled: October 14, 2022Publication date: February 16, 2023Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: STEVEN L. KANGAS, EDWARD KOPESKY, YEN-LANE CHEN
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Publication number: 20230011767Abstract: 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: ApplicationFiled: July 8, 2022Publication date: January 12, 2023Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Steven L. Kangas, Edward Kopesky, Yen-Lane Chen
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Patent number: 11484320Abstract: 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: GrantFiled: December 17, 2020Date of Patent: November 1, 2022Assignee: Boston Scientific Scimed, Inc.Inventors: Steven L. Kangas, Edward Kopesky, Yen-Lane Chen
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Publication number: 20220151628Abstract: 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: ApplicationFiled: November 18, 2021Publication date: May 19, 2022Inventors: Ajay Gupta, Daniel K. Tomaschko, Steven L. Kangas
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Patent number: 11090267Abstract: 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: GrantFiled: September 30, 2019Date of Patent: August 17, 2021Assignee: BOSTON SCIENTIFIC SCIMED, INC.Inventor: Steven L. Kangas
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Publication number: 20210186516Abstract: 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: ApplicationFiled: December 17, 2020Publication date: June 24, 2021Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: STEVEN L. KANGAS, EDWARD KOPESKY, YEN-LANE CHEN
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Publication number: 20200093743Abstract: 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: ApplicationFiled: September 30, 2019Publication date: March 26, 2020Inventor: Steven L. Kangas
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Patent number: 10575855Abstract: 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: GrantFiled: March 30, 2016Date of Patent: March 3, 2020Assignee: 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
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Patent number: 10531945Abstract: 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: GrantFiled: January 22, 2016Date of Patent: January 14, 2020Assignee: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Annamaria Szabolcs, Jeffrey W. Reineke, Andrew D. Bicek, John R. Ballard, Steven L. Kangas
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Patent number: 10471012Abstract: 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: GrantFiled: January 4, 2016Date of Patent: November 12, 2019Assignee: Boston Scientific Scimed, Inc.Inventors: Hongxia Zeng, Steven L. Kangas, Yen-Lane Chen
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Patent number: 10456361Abstract: 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: GrantFiled: February 5, 2015Date of Patent: October 29, 2019Assignee: Boston Scientific Scimed, Inc.Inventor: Steven L. Kangas
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Patent number: 10098650Abstract: 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: GrantFiled: June 9, 2015Date of Patent: October 16, 2018Assignee: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Steven L. Kangas, Yen-Lane Chen
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Publication number: 20160331564Abstract: 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: ApplicationFiled: May 13, 2016Publication date: November 17, 2016Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventor: STEVEN L. KANGAS
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Publication number: 20160287259Abstract: 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: ApplicationFiled: March 30, 2016Publication date: October 6, 2016Inventors: 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
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Publication number: 20160262917Abstract: 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: ApplicationFiled: March 10, 2016Publication date: September 15, 2016Inventors: JOHN J. CHEN, STEVEN L. KANGAS, YEN-LANE CHEN, HONGXIA ZENG, RAGHAV GOEL
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Publication number: 20160228126Abstract: 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: ApplicationFiled: February 5, 2016Publication date: August 11, 2016Applicant: Boston Scientific Scimed, Inc.Inventors: Robert N. Squire, Jeffrey S. Lindquist, Kent D. Harrison, Daniel J. Horn, Steven L. Kangas
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Publication number: 20160220490Abstract: 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: ApplicationFiled: January 4, 2016Publication date: August 4, 2016Applicant: Boston Scientific Scimed, Inc.Inventors: Hongxia Zeng, Steven L. Kangas, Yen-Lane Chen
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Publication number: 20160213462Abstract: 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: ApplicationFiled: January 22, 2016Publication date: July 28, 2016Inventors: Annamaria Szabolcs, Jeffrey W. Reineke, Andrew D. Bicek, John R. Ballard, Steven L. Kangas