Patents by Inventor Steven R. Larsen
Steven R. Larsen 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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Patent number: 9486611Abstract: Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a guide extension catheter. The guide extension catheter may include an elongate tubular member having a proximal region, a distal region, and a slot formed in the tubular member between the proximal region and the distal region. The proximal region of the tubular member may be configured to shift between a first configuration and a collapsed configuration. The guide extension catheter may also include an elongate shaft for shifting the proximal region between the first configuration and the collapsed configuration.Type: GrantFiled: August 16, 2013Date of Patent: November 8, 2016Assignee: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Eric M. Petersen, Steven R. Larsen, Wayne Falk, Joel M. Wasdyke, Huisun Wang
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Patent number: 9408951Abstract: Nanoparticles can be embedded into a medical device by accelerating them to a speed of between 100 m/s and 1,000 m/s and embedding the particles into a polymer surface of a medical device or a precursor thereof. In some cases, the nanoparticles can be embedded until the nanoparticles accumulate in sufficient number to adhere together to form a coating over the polymer surface. The nanoparticles can provide a conductive pathway, an abrasion resistant surface, a pro-healing surface, and/or an anti-bacterial surface.Type: GrantFiled: November 12, 2013Date of Patent: August 9, 2016Assignee: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Steven R. Larsen, Eric Petersen, Scott R. Schewe
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Patent number: 9289594Abstract: Medical devices may include an electrode that has been processed to increase its surface area. In some cases, an electrode may be processed using an ultrafast laser to produce an electrode surface that includes macrostructures formed within the electrode surface and nanostructures formed on the macrostructures. The nanostructures may be formed of material that was removed from the electrode surface in forming the macrostructures.Type: GrantFiled: September 3, 2013Date of Patent: March 22, 2016Assignee: Cardiac Pacemakers, Inc.Inventors: Eric M. Petersen, Steven R. Larsen
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Publication number: 20150366608Abstract: A medical device for sympathetic nerve ablation may include an elongate shaft and an expandable member. A printed ablation electrode assembly may be disposed on an outer surface of the expandable member, the printed ablation electrode assembly including a positive electrical pathway and a ground electrical pathway printed directly on the outer surface of the expandable member. A temperature sensor may be printed directly on the outer surface of the expandable member. A method of manufacturing a medical device for sympathetic nerve ablation may include printing a conductive ink network directly on a surface of a polymeric balloon material in a flat configuration, printing at least one temperature sensor directly on the surface of the polymeric balloon material, forming the polymeric balloon material into an inflatable balloon, and attaching the inflatable balloon to an elongate catheter shaft.Type: ApplicationFiled: June 19, 2015Publication date: December 24, 2015Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: JAN WEBER, JEFFREY S. LINDQUIST, STEVEN R. LARSEN, ERIC M. PETERSEN, MARTIN R. WILLARD
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Patent number: 9173696Abstract: Systems for nerve and tissue modulation are disclosed. An example system may include an intravascular nerve modulation system including an elongated shaft having a proximal end region and a distal end region. The system may include an expandable frame having one or more electrodes positioned on or about the frame. An actuation assembly including a biasing element, a central shaft, and a piston may be configured to provide for controlled expansion of the expandable frame. The system may further include a control element for controlling the actuation assembly.Type: GrantFiled: September 17, 2013Date of Patent: November 3, 2015Assignee: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Travis J. Schauer, Eric Petersen, Steven R. Larsen
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Publication number: 20150119724Abstract: Catheter systems and methods for determining blood flow rates based on light reflection measurements. The catheter may include a lumen extending between a proximal end of the catheter and a distal end of the catheter. The catheter may include fluid infusion openings at the distal end region of the catheter that are configured to permit the indicator fluid to exit the catheter from the lumen. The catheter system may include an optical fiber having one or more sensors thereon for sensing light reflected by blood particles in a body vessel lumen. A blood flow rate may be determined based on the sensed light reflected by blood particles in the body vessel lumen.Type: ApplicationFiled: October 24, 2014Publication date: April 30, 2015Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: JAN WEBER, JAMES M. ANDERSON, AIDEN FLANAGAN, ERIC M. PETERSEN, STEVEN R. LARSEN
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Publication number: 20140134322Abstract: Nanoparticles can be embedded into a medical device by accelerating them to a speed of between 100 m/s and 1,000 m/s and embedding the particles into a polymer surface of a medical device or a precursor thereof. In some cases, the nanoparticles can be embedded until the nanoparticles accumulate in sufficient number to adhere together to form a coating over the polymer surface. The nanoparticles can provide a conductive pathway, an abrasion resistant surface, a pro-healing surface, and/or an anti-bacterial surface.Type: ApplicationFiled: November 12, 2013Publication date: May 15, 2014Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Steven R. Larsen, Eric Petersen, Scott R. Schewe
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Publication number: 20140081261Abstract: Systems for nerve and tissue modulation are disclosed. An example system may include an intravascular nerve modulation system including an elongated shaft having a proximal end region and a distal end region. The system may include an expandable frame having one or more electrodes positioned on or about the frame. An actuation assembly including a biasing element, a central shaft, and a piston may be configured to provide for controlled expansion of the expandable frame. The system may further include a control element for controlling the actuation assembly.Type: ApplicationFiled: September 17, 2013Publication date: March 20, 2014Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: TRAVIS J. SCHAUER, ERIC PETERSEN, STEVEN R. LARSEN
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Patent number: 8668732Abstract: An endoprosthesis includes an expandable tubular body defined by a plurality of struts. In some embodiments, the expandable tubular body includes a bioerodible metal that has at least a first surface region and a second surface region. The first and second surface regions can have different surface oxide compositions. In some embodiments, the first portion has a thermally altered microstructure and the second portion has a wrought microstructure. The thermally altered microstructure can be a cast microstructure comprising dendritic grains. The first portion forms at least a portion of an outer surface of the expandable tubular body. In some embodiments, the expandable tubular body includes iron or a bioerodible iron alloy and at least one surface of the expandable tubular body includes a substantially uniform coating of iron(III) oxide.Type: GrantFiled: March 22, 2011Date of Patent: March 11, 2014Assignee: Boston Scientific SciMed, Inc.Inventors: Torsten Scheuermann, Jan Weber, Charles Deng, Jonathan S. Stinson, Steven R. Larsen, Dennis A. Boismier, Jacob D. Edick
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Publication number: 20140067031Abstract: Medical devices may include an electrode that has been processed to increase its surface area. In some cases, an electrode may be processed using an ultrafast laser to produce an electrode surface that includes macrostructures formed within the electrode surface and nanostructures formed on the macrostructures. The nanostructures may be formed of material that was removed from the electrode surface in forming the macrostructures.Type: ApplicationFiled: September 3, 2013Publication date: March 6, 2014Applicant: Cardiac Pacemakers, Inc.Inventors: Eric M. Petersen, Steven R. Larsen
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Publication number: 20140052097Abstract: Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a guide extension catheter. The guide extension catheter may include an elongate tubular member having a proximal region, a distal region, and a slot formed in the tubular member between the proximal region and the distal region. The proximal region of the tubular member may be configured to shift between a first configuration and a collapsed configuration. The guide extension catheter may also include an elongate shaft for shifting the proximal region between the first configuration and the collapsed configuration.Type: ApplicationFiled: August 16, 2013Publication date: February 20, 2014Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: ERIC M. PETERSEN, STEVEN R. LARSEN, WAYNE FALK, JOEL M. WASDYKE, HUISUN WANG
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Publication number: 20130296678Abstract: An implantable medical lead including a proximal end portion and a distal end portion and an electrical conductor electrically connected to the proximal end portion of the lead body. Also, the lead has at least one electrode connected to the distal end portion of the lead body and connected to the electrical conductor. The electrode includes a conductive base structure, a first set of pores formed on an outer surface of the conductive base structure, the first set of pores having an average first pore dimension of between about ¼th and about 1/100th an electrode dimension, and a second set of pores formed on at least a portion of the first set of pores, the second set of pores having an average second pore dimension of between about ¼th and about 1/100th average first pore dimension.Type: ApplicationFiled: April 23, 2013Publication date: November 7, 2013Inventors: Steven R. Larsen, Arthur J. Foster, Rakesj Radhakrishnan, Eric M. Petersen
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Publication number: 20120053674Abstract: A bioerodible endoprosthesis erodes to a desirable geometry that can provide, e.g., improved mechanical properties or degradation characteristics.Type: ApplicationFiled: November 8, 2011Publication date: March 1, 2012Applicant: Boston Scientific SciMed, Inc.Inventors: Dennis A. Boismier, Timothy S. Girton, Steven R. Larsen, Matt Shedlov, Ken Merdan, Barry O'Brien
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Patent number: 8057534Abstract: A bioerodible endoprosthesis erodes to a desirable geometry that can provide, e.g., improved mechanical properties or degradation characteristics.Type: GrantFiled: September 14, 2007Date of Patent: November 15, 2011Assignee: Boston Scientific SciMed, Inc.Inventors: Dennis A. Boismier, Timothy S. Girton, Steven R. Larsen, Matt Shedlov, Ken Merdan, Barry O'Brien
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Publication number: 20110238151Abstract: An endoprosthesis includes an expandable tubular body defined by a plurality of struts. In some embodiments, the expandable tubular body includes a bioerodible metal that has at least a first surface region and a second surface region. The first and second surface regions can have different surface oxide compositions. In some embodiments, the first portion has a thermally altered microstructure and the second portion has a wrought microstructure. The thermally altered microstructure can be a cast microstructure comprising dendritic grains. The first portion forms at least a portion of an outer surface of the expandable tubular body. In some embodiments, the expandable tubular body includes iron or a bioerodible iron alloy and at least one surface of the expandable tubular body includes a substantially uniform coating of iron(III) oxide.Type: ApplicationFiled: March 22, 2011Publication date: September 29, 2011Applicant: Boston Scientific Scimed, Inc.Inventors: Torsten Scheuermann, Jan Weber, Charles Deng, Jonathan S. Stinson, Steven R. Larsen, Dennis A. Boismier, Jacob D. Edick
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Publication number: 20100145436Abstract: Endoprostheses such as stents are disclosed that are, or that include portions that are, bioerodible.Type: ApplicationFiled: February 17, 2010Publication date: June 10, 2010Applicant: Boston Scientific Scimed, Inc.Inventors: Jan Weber, Liliana Atanasoska, Steven R. Larsen, Steven P. Mertens
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Publication number: 20080071349Abstract: Medical devices are described that include a device body that carries a first bioerodible member and a second bioerodible member. One of the first or second members includes a bioerodible metallic material or ceramic, and the other includes a bioerodible polymeric material. The first and/or second member can include a therapeutic agent such as paclitaxel.Type: ApplicationFiled: September 13, 2007Publication date: March 20, 2008Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Liliana Atanasoska, Jan Weber, Steven R. Larsen, Robert W. Warner
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Publication number: 20080071358Abstract: Endoprostheses such as stents are disclosed that are, or that include portions that are, bioerodible.Type: ApplicationFiled: September 13, 2007Publication date: March 20, 2008Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Jan Weber, Liliana Atanasoska, Steven R. Larsen, Steven P. Mertens
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Patent number: 6423451Abstract: A sealed lead-acid cell and positive plate for a sealed lead-acid cell are provided. The positive plate comprises a grid supporting structure having a layer of active material pasted thereto, the grid supporting structure comprising a lead-based alloy consisting essentially of lead, from about 0.02% to about 0.05% calcium, from about 1.5% to about 3.0% tin, and from about 0.01% to about 0.05% silver. A positive plate in accordance with the invention has excellent mechanical properties, and is satisfactory for use in a lead-acid cell.Type: GrantFiled: May 4, 1998Date of Patent: July 23, 2002Assignee: GNB Technologies, Inc.Inventor: Steven R. Larsen
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Patent number: 5948566Abstract: The use of a continuous process for making a directly cast strip to provide a thickness satisfactory for industrial cells and batteries for stationary and motive power applications is disclosed, the thickness of the strip being at least 0.060 inch, and the process providing a visually crack-free surface in the transverse direction of the directly cast strip, the strip being lead or a lead-based alloy, such as, for example, calcium-tin-silver.Type: GrantFiled: September 4, 1997Date of Patent: September 7, 1999Assignee: GNB Technologies, Inc.Inventors: Steven R. Larsen, Andrew Foote