Patents by Inventor Victoria Schuman

Victoria Schuman 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: 20210045749
    Abstract: In some examples, an embolization device includes multiple sections with three-dimensional non-helical structures when deployed at a vascular site. The multiple sections include a first section and one or more second sections that are smaller than the first section. The first section may have a deployed structure configured to anchor the device at a vascular site (e.g., a blood vessel) of a patient while each of the one or more second sections may be formed from loops that configured to pack and obstruct the vascular site. In some cases, the embolization device also includes a third section having a deployed configuration with multiple helical windings or loops is configured to anchor the embolization device at the vascular site.
    Type: Application
    Filed: August 13, 2019
    Publication date: February 18, 2021
    Inventors: Yihan Wang, Victoria Schuman, Zhimin Fang, Yapeng Xu, Haitao Cao, Zhipeng Chen, Xiaojing Guo, Shichang Wen
  • Patent number: 10905459
    Abstract: A tissue-removing catheter includes a tissue-removing element operably connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. The tissue-removing element is an integrally formed, one-piece body and has an annular tissue-removing head at the distal end of a tissue-removing element body. In some embodiments, primary tissue-removing components include an integrally formed cutting tooth and inner shearing member and are spaced angularly around the tissue-removing blade. Secondary tissue-removing components include cutting teeth and are interposed between the primary tissue-removing components around the tissue-removing blade. The tissue-removing element is made by removing material from a blank to form the primary and secondary tissue-removing components.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: February 2, 2021
    Inventors: Ethan Andrew Guggenheimer, Victoria Schuman, Lucas Schneider, Benjamin Robert Fruland
  • Patent number: 10905458
    Abstract: A tissue-removing catheter includes a tissue-removing element operatively connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. A tissue-removing head of the tissue-removing element defines an annular cutting blade. In some embodiments, angularly spaced cutting teeth form the cutting blade. Inner shearing members extend radially inward from the cutting blade. As the tissue-removing element rotates in the cutting direction and advances axially through a body lumen, the annular cutting edge separates the tissue from the body lumen wall. Leading surfaces of the inner shearing members shear the separated tissue radially inwardly. In some embodiments, the tissue-removing element is an integrally formed, one-piece body made by removing material from a blank to form the cutting blade and inner shearing members.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: February 2, 2021
    Inventors: Ethan Andrew Guggenheimer, Victoria Schuman, Virgil Koski, Benjamin Robert Fruland, Lucas Schneider
  • Publication number: 20200323664
    Abstract: Medical devices that include a tubular member with a plurality of braided filaments, each filament crossing another of the filaments at a respective crossing point forming sidewall and a plurality of pores in the sidewall that are sized to inhibit flow of blood through the sidewall into an aneurysm to a degree sufficient to lead to thrombosis and healing of the aneurysm when the tubular member is positioned in a blood vessel and adjacent to the aneurysm, the pores have an average pore size that is less than or equal to about 500 microns when the tubular member is in an expanded state, the filaments possessing antithrombogenic surfaces to increase antithrombogenicity of the medical device with pores substantially free of webs formed by antithrombogenic material, such that fewer than 5% of the crossing points have webs formed by antithrombogenic material thereby permitting the pores to be substantially free of webs.
    Type: Application
    Filed: June 26, 2020
    Publication date: October 15, 2020
    Inventors: John Wainwright, Todd Mendelson, Kurt Haggstrom, Masoud Molaei, Victoria Schuman, Min-Shyan Sheu
  • Patent number: 10695200
    Abstract: Medical devices that include a tubular member with a plurality of braided filaments, each filament crossing another of the filaments at a respective crossing point forming sidewall and a plurality of pores in the sidewall that are sized to inhibit flow of blood through the sidewall into an aneurysm to a degree sufficient to lead to thrombosis and healing of the aneurysm when the tubular member is positioned in a blood vessel and adjacent to the aneurysm, the pores have an average pore size that is less than or equal to about 500 microns when the tubular member is in an expanded state, the filaments possessing antithrombogenic surfaces to increase antithrombogenicity of the medical device with pores substantially free of webs formed by antithrombogenic material, such that fewer than 5% of the crossing points have webs formed by antithrombogenic material thereby permitting the pores to be substantially free of webs.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: June 30, 2020
    Assignee: COVIDIEN LP
    Inventors: John Wainwright, Todd Mendelson, Kurt Haggstrom, Masoud Molaei, Victoria Schuman, Min-Shyan Sheu
  • Patent number: 10631894
    Abstract: A tissue-removing catheter includes a tissue-removing element operably connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. The tissue-removing element is, in some embodiments, an integrally formed one-piece body. The tissue-removing element has a tissue-removing head that includes a plurality of shearing members spaced apart around the axis of rotation. Channels separate the plurality of shearing members and extend through the radially outer surface of the tissue-removing head. In some embodiments, the shearing members include respective wedge portions that hook and cleave tissue as the tissue-removing element rotates.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: April 28, 2020
    Assignee: Covidien LP
    Inventors: Ethan Guggenheimer, Benjamin Fruland, Victoria Schuman, Virgil Koski
  • Patent number: 10507036
    Abstract: A tissue-removing catheter includes a tissue-removing element operatively connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. In some embodiments, the tissue removing element has a cutting blade and cutting teeth positioned radially inward of the cutting blade with respect to the axis of rotation. The cutting blade and cutting teeth are fixed with respect to one another to form first and second cuts in tissue as the tissue-removing element rotates. In certain embodiments, the tissue-removing element includes a cutting blade and raised elements spaced apart inward of the cutting blade relative to the axis of rotation to define an annular tissue-receiving channel between the cutting blade and the raised elements. A bottom surface of the channel can define cutting teeth.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: December 17, 2019
    Assignee: Covidien LLP
    Inventors: Victoria Schuman, Ethan Guggenheimer
  • Patent number: 10335188
    Abstract: Drive shafts having helical blades and methods of making are disclosed. In one method a helical auger blade is formed by twisting or sculpting a heated polymer tube which has been placed over a cylindrical drive shaft. In another method a drive shaft is placed within a helical winding and heat is applied to melt polymer which has been coated over one or both of the drive shaft and helical winding.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: July 2, 2019
    Assignee: Covidien LP
    Inventors: Jenny Zeroni, Cory David Sills, Victoria Schuman, Marc D. Knutson, Bryan Matthew Ladd, Benjamin Robert Fruland, Lucas Schneider, Alexander J. Rice
  • Publication number: 20190175373
    Abstract: Medical devices that include a tubular member with a plurality of braided filaments, each filament crossing another of the filaments at a respective crossing point forming sidewall and a plurality of pores in the sidewall that are sized to inhibit flow of blood through the sidewall into an aneurysm to a degree sufficient to lead to thrombosis and healing of the aneurysm when the tubular member is positioned in a blood vessel and adjacent to the aneurysm, the pores have an average pore size that is less than or equal to about 500 microns when the tubular member is in an expanded state, the filaments possessing antithrombogenic surfaces to increase antithrombogenicity of the medical device with pores substantially free of webs formed by antithrombogenic material, such that fewer than 5% of the crossing points have webs formed by antithrombogenic material thereby permitting the pores to be substantially free of webs.
    Type: Application
    Filed: February 15, 2019
    Publication date: June 13, 2019
    Inventors: John Wainwright, Todd Mendelson, Kurt Haggstrom, Masoud Molaei, Victoria Schuman, Min-Shyan Sheu
  • Patent number: 10314664
    Abstract: A tissue-removing catheter includes a tissue-removing element operably connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. The tissue-removing element includes a cutting edge that extends around the axis of rotation and a depth stop that extends around the axis of rotation radially inward of the cutting edge relative to the axis of rotation. The depth stop defines an engagement surface adapted to engage a hard object and thereby limit the depth at which the cutting edge cuts into the hard object. In use, when the cutting edge cuts into a hard object, the depth stop engages the hard object to limit the cutting depth.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: June 11, 2019
    Assignee: Covidien LP
    Inventor: Victoria Schuman
  • Patent number: 10226366
    Abstract: Medical devices that include a tubular member with a plurality of braided filaments, each filament crossing another of the filaments at a respective crossing point forming sidewall and a plurality of pores in the sidewall that are sized to inhibit flow of blood through the sidewall into an aneurysm to a degree sufficient to lead to thrombosis and healing of the aneurysm when the tubular member is positioned in a blood vessel and adjacent to the aneurysm, the pores have an average pore size that is less than or equal to about 500 microns when the tubular member is in an expanded state, the filaments possessing antithrombogenic surfaces to increase antithrombogenicity of the medical device with pores substantially free of webs formed by antithrombogenic material, such that fewer than 5% of the crossing points have webs formed by antithrombogenic material thereby permitting the pores to be substantially free of webs.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: March 12, 2019
    Assignee: Covidien LP
    Inventors: John Wainwright, Todd Mendelson, Kurt Haggstrom, Masoud Molaei, Victoria Schuman, Min-Shyan Sheu
  • Patent number: 10143488
    Abstract: A catheter includes an elongate catheter body configured for insertion into a body lumen of a subject. A cutter is located generally at a distal end of the catheter body for rotation generally about a longitudinal axis of the cutter. An eccentric opening in a distal end portion of the cutter defines an angled cutting edge for cutting material from a wall of the body lumen. A center of the opening is offset from the longitudinal axis of the cutter. A cavity extends from the opening through the cutter from the distal end portion to a proximal end portion to allow material cut by the cutter to pass through the cutter into an interior passage of the catheter body for removal from the body lumen.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: December 4, 2018
    Assignee: Covidien LP
    Inventors: Alexander Rice, Victoria Schuman
  • Publication number: 20170360470
    Abstract: Drive shafts having helical blades and methods of making are disclosed. In one method a helical auger blade is formed by twisting or sculpting a heated polymer tube which has been placed over a cylindrical drive shaft. In another method a drive shaft is placed within a helical winding and heat is applied to melt polymer which has been coated over one or both of the drive shaft and helical winding.
    Type: Application
    Filed: August 23, 2017
    Publication date: December 21, 2017
    Inventors: Jenny Zeroni, Cory David Sills, Victoria Schuman, Marc D. Knutson, Bryan Matthew Ladd, Benjamin Robert Fruland, Lucas Schneider, Alexander J. Rice
  • Patent number: 9770259
    Abstract: Drive shafts having helical blades and methods of making are disclosed. In one method a helical auger blade is formed by twisting or sculpting a heated polymer tube which has been placed over a cylindrical drive shaft. In another method a drive shaft is placed within a helical winding and heat is applied to melt polymer which has been coated over one or both of the drive shaft and helical winding.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: September 26, 2017
    Assignee: Covidien LP
    Inventors: Jenny Zeroni, Cory David Sills, Victoria Schuman, Marc D. Knutson, Bryan Matthew Ladd, Benjamin Robert Fruland, Lucas Schneider, Alexander J. Rice
  • Publication number: 20170196588
    Abstract: A tissue-removing catheter includes a tissue-removing element operatively connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. In some embodiments, the tissue removing element has a cutting blade and cutting teeth positioned radially inward of the cutting blade with respect to the axis of rotation. The cutting blade and cutting teeth are fixed with respect to one another to form first and second cuts in tissue as the tissue-removing element rotates. In certain embodiments, the tissue-removing element includes a cutting blade and raised elements spaced apart inward of the cutting blade relative to the axis of rotation to define an annular tissue-receiving channel between the cutting blade and the raised elements. A bottom surface of the channel can define cutting teeth.
    Type: Application
    Filed: January 13, 2016
    Publication date: July 13, 2017
    Inventors: Victoria Schuman, Ethan Guggenheimer
  • Publication number: 20170119557
    Abstract: Medical devices that include a tubular member with a plurality of braided filaments, each filament crossing another of the filaments at a respective crossing point forming sidewall and a plurality of pores in the sidewall that are sized to inhibit flow of blood through the sidewall into an aneurysm to a degree sufficient to lead to thrombosis and healing of the aneurysm when the tubular member is positioned in a blood vessel and adjacent to the aneurysm, the pores have an average pore size that is less than or equal to about 500 microns when the tubular member is in an expanded state, the filaments possessing antithrombogenic surfaces to increase antithrombogenicity of the medical device with pores substantially free of webs formed by antithrombogenic material, such that fewer than 5% of the crossing points have webs formed by antithrombogenic material thereby permitting the pores to be substantially free of webs.
    Type: Application
    Filed: January 12, 2017
    Publication date: May 4, 2017
    Inventors: John Wainwright, Todd Mendelson, Kurt Haggstrom, Masoud Molaei, Victoria Schuman, Min-shyan Sheu
  • Publication number: 20170100150
    Abstract: A tissue-removing catheter includes a tissue-removing element operably connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. The tissue-removing element includes a cutting edge that extends around the axis of rotation and a depth stop that extends around the axis of rotation radially inward of the cutting edge relative to the axis of rotation. The depth stop defines an engagement surface adapted to engage a hard object and thereby limit the depth at which the cutting edge cuts into the hard object. In use, when the cutting edge cuts into a hard object, the depth stop engages the hard object to limit the cutting depth.
    Type: Application
    Filed: October 7, 2015
    Publication date: April 13, 2017
    Inventor: Victoria Schuman
  • Publication number: 20170014146
    Abstract: A tissue-removing catheter includes a tissue-removing element operably connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. The tissue-removing element is, in some embodiments, an integrally formed one-piece body. The tissue-removing element has a tissue-removing head that includes a plurality of shearing members spaced apart around the axis of rotation. Channels separate the plurality of shearing members and extend through the radially outer surface of the tissue-removing head. In some embodiments, the shearing members include respective wedge portions that hook and cleave tissue as the tissue-removing element rotates.
    Type: Application
    Filed: July 12, 2016
    Publication date: January 19, 2017
    Inventors: Ethan Guggenheimer, Benjamin Fruland, Victoria Schuman, Virgil Koski
  • Patent number: 9545301
    Abstract: Coating methods and related devices are provided. Such devices can include stents. For example, the device can comprise a sidewall and a plurality of pores in the sidewall that are sized to inhibit flow of blood through the sidewall into an aneurysm to a degree sufficient to lead to thrombosis and healing of the aneurysm when the tubular member is positioned in a blood vessel and adjacent to the aneurysm. The device can also comprise an anti-thrombogenic coating distributed over at least a portion of the device such that the pores are substantially free of webs formed by the coating.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: January 17, 2017
    Assignee: Covidien LP
    Inventors: John Wainwright, Todd Mendelson, Kurt Haggstrom, Masoud Molaei, Victoria Schuman, Min-Shyan Sheu
  • Publication number: 20160354110
    Abstract: A tissue-removing catheter includes a tissue-removing element operably connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. The tissue-removing element is an integrally formed, one-piece body and has an annular tissue-removing head at the distal end of a tissue-removing element body. In some embodiments, primary tissue-removing components include an integrally formed cutting tooth and inner shearing member and are spaced angularly around the tissue-removing blade. Secondary tissue-removing components include cutting teeth and are interposed between the primary tissue-removing components around the tissue-removing blade. The tissue-removing element is made by removing material from a blank to form the primary and secondary tissue-removing components.
    Type: Application
    Filed: June 7, 2016
    Publication date: December 8, 2016
    Inventors: Ethan Andrew Guggenheimer, Victoria Schuman, Lucas Schneider, Benjamin Robert Fruland