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).
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Patent number: 11944313Abstract: 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: GrantFiled: July 19, 2022Date of Patent: April 2, 2024Assignee: Covidien LPInventors: Yihan Wang, Victoria Schuman, Zhimin Fang, Yapeng Xu, Haitao Cao, Zhipeng Chen, Xiaojing Guo, Shichang Wen
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Publication number: 20240016497Abstract: Devices, systems, and methods for occluding body lumens are disclosed herein. According to some embodiments, the present technology includes an embolization device configured to be positioned within a body lumen of a patient. The embolization device can comprise an elongated primary structure formed of a coiled wire, where the primary structure forms a secondary structure when unconstrained in which the primary structure forms an anchor portion and a trailing portion. The anchor portion can be configured to anchor the embolization device at the treatment site, and the trailing portion can be configured to fill space in the body lumen to reduce or block flow into or through the body lumen. The primary structure can have a stiffening feature along at least a portion of the anchor portion.Type: ApplicationFiled: July 12, 2022Publication date: January 18, 2024Inventors: Amanda K. Eldridge, Jeffrey H. Vogel, Victoria Schuman
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Publication number: 20220346802Abstract: 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: ApplicationFiled: July 19, 2022Publication date: November 3, 2022Inventors: Yihan Wang, Victoria Schuman, Zhimin Fang, Yapeng Xu, Haitao Cao, Zhipeng Chen, Xiaojing Guo, Shichang Wen
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Patent number: 11399840Abstract: 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: GrantFiled: August 13, 2019Date of Patent: August 2, 2022Assignee: COVIDIEN LPInventors: Yihan Wang, Victoria Schuman, Zhimin Fang, Yapeng Xu, Haitao Cao, Zhipeng Chen, Xiaojing Guo, Shichang Wen
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Patent number: 11376141Abstract: 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: GrantFiled: June 26, 2020Date of Patent: July 5, 2022Assignee: COVIDIEN LPInventors: John Wainwright, Todd Mendelson, Kurt Haggstrom, Masoud Molaei, Victoria Schuman, Min-Shyan Sheu
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Publication number: 20210045749Abstract: 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: ApplicationFiled: August 13, 2019Publication date: February 18, 2021Inventors: Yihan Wang, Victoria Schuman, Zhimin Fang, Yapeng Xu, Haitao Cao, Zhipeng Chen, Xiaojing Guo, Shichang Wen
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Patent number: 10905459Abstract: 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: GrantFiled: June 7, 2016Date of Patent: February 2, 2021Inventors: Ethan Andrew Guggenheimer, Victoria Schuman, Lucas Schneider, Benjamin Robert Fruland
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Patent number: 10905458Abstract: 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: GrantFiled: June 7, 2016Date of Patent: February 2, 2021Inventors: Ethan Andrew Guggenheimer, Victoria Schuman, Virgil Koski, Benjamin Robert Fruland, Lucas Schneider
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Publication number: 20200323664Abstract: 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: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Inventors: John Wainwright, Todd Mendelson, Kurt Haggstrom, Masoud Molaei, Victoria Schuman, Min-Shyan Sheu
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Patent number: 10695200Abstract: 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: GrantFiled: February 15, 2019Date of Patent: June 30, 2020Assignee: COVIDIEN LPInventors: John Wainwright, Todd Mendelson, Kurt Haggstrom, Masoud Molaei, Victoria Schuman, Min-Shyan Sheu
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Patent number: 10631894Abstract: 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: GrantFiled: July 12, 2016Date of Patent: April 28, 2020Assignee: Covidien LPInventors: Ethan Guggenheimer, Benjamin Fruland, Victoria Schuman, Virgil Koski
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Patent number: 10507036Abstract: 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: GrantFiled: January 13, 2016Date of Patent: December 17, 2019Assignee: Covidien LLPInventors: Victoria Schuman, Ethan Guggenheimer
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Patent number: 10335188Abstract: 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: GrantFiled: August 23, 2017Date of Patent: July 2, 2019Assignee: Covidien LPInventors: Jenny Zeroni, Cory David Sills, Victoria Schuman, Marc D. Knutson, Bryan Matthew Ladd, Benjamin Robert Fruland, Lucas Schneider, Alexander J. Rice
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Publication number: 20190175373Abstract: 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: ApplicationFiled: February 15, 2019Publication date: June 13, 2019Inventors: John Wainwright, Todd Mendelson, Kurt Haggstrom, Masoud Molaei, Victoria Schuman, Min-Shyan Sheu
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Patent number: 10314664Abstract: 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: GrantFiled: October 7, 2015Date of Patent: June 11, 2019Assignee: Covidien LPInventor: Victoria Schuman
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Patent number: 10226366Abstract: 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: GrantFiled: January 12, 2017Date of Patent: March 12, 2019Assignee: Covidien LPInventors: John Wainwright, Todd Mendelson, Kurt Haggstrom, Masoud Molaei, Victoria Schuman, Min-Shyan Sheu
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Patent number: 10143488Abstract: 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: GrantFiled: December 10, 2013Date of Patent: December 4, 2018Assignee: Covidien LPInventors: Alexander Rice, Victoria Schuman
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Publication number: 20170360470Abstract: 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: ApplicationFiled: August 23, 2017Publication date: December 21, 2017Inventors: Jenny Zeroni, Cory David Sills, Victoria Schuman, Marc D. Knutson, Bryan Matthew Ladd, Benjamin Robert Fruland, Lucas Schneider, Alexander J. Rice
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Patent number: 9770259Abstract: 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: GrantFiled: March 10, 2015Date of Patent: September 26, 2017Assignee: Covidien LPInventors: Jenny Zeroni, Cory David Sills, Victoria Schuman, Marc D. Knutson, Bryan Matthew Ladd, Benjamin Robert Fruland, Lucas Schneider, Alexander J. Rice
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Publication number: 20170196588Abstract: 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: ApplicationFiled: January 13, 2016Publication date: July 13, 2017Inventors: Victoria Schuman, Ethan Guggenheimer