Patents by Inventor Zhenghong Tao
Zhenghong Tao 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: 20240024638Abstract: A guidewire for backloading and inserting a percutaneous pump affixed to a cannula includes a proximal section made of a first material, with a first diameter, a rounded proximal end, and a distal end. The guidewire also includes a distal section made of a second material, with a second diameter which is greater than the first diameter, a distal end, and a proximal end abutting the distal end of the proximal section. The first material of the proximal section is selected to be softer than a material of the percutaneous pump to reduce damage to the pump during backloading. The distal section of the guidewire is configured to be stiffer than the proximal section to insert the percutaneous pump in a desired location without damaging the guidewire.Type: ApplicationFiled: July 31, 2023Publication date: January 25, 2024Applicant: ABIOMED, Inc.Inventors: Zhenghong Tao, Michael Thomas Finnegan
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Patent number: 11752308Abstract: A guidewire for backloading and inserting a percutaneous pump affixed to a cannula includes a proximal section made of a first material, with a first diameter, a rounded proximal end, and a distal end. The guidewire also includes a distal section made of a second material, with a second diameter which is greater than the first diameter, a distal end, and a proximal end abutting the distal end of the proximal section. The first material of the proximal section is selected to be softer than a material of the percutaneous pump to reduce damage to the pump during backloading. The distal section of the guidewire is configured to be stiffer than the proximal section to insert the percutaneous pump in a desired location without damaging the guidewire.Type: GrantFiled: April 16, 2021Date of Patent: September 12, 2023Assignee: ABIOMED, INC.Inventors: Zhenghong Tao, Michael Thomas Finnegan
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Publication number: 20210299411Abstract: A guidewire for backloading and inserting a percutaneous pump affixed to a cannula includes a proximal section made of a first material, with a first diameter, a rounded proximal end, and a distal end. The guidewire also includes a distal section made of a second material, with a second diameter which is greater than the first diameter, a distal end, and a proximal end abutting the distal end of the proximal section. The first material of the proximal section is selected to be softer than a material of the percutaneous pump to reduce damage to the pump during backloading. The distal section of the guidewire is configured to be stiffer than the proximal section to insert the percutaneous pump in a desired location without damaging the guidewire.Type: ApplicationFiled: April 16, 2021Publication date: September 30, 2021Applicant: ABIOMED, Inc.Inventors: Zhenghong Tao, Michael Thomas Finnegan
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Publication number: 20210213274Abstract: A blood pump with a stator and rotor wherein the rotor is assembled by bonding the stator components with epoxy. The bonding surfaces of the rotor components are primed with a silane-based primer to improve adhesion between the primer and the rotor components by rendering such surfaces hydrophobic. A bonding surface of one of the stator yoke or the stator sleeve, or both, is treated with a primer that improves wettability of the bonding surface and improves bonding of the epoxy to the binding surface. The device has a bonding surface adhered to epoxy in which a primer was applied on such bonding surface prior to introducing epoxy onto the bonding surface. In addition to improved bond strength, hydrophobic surface would control moister ingress.Type: ApplicationFiled: January 8, 2021Publication date: July 15, 2021Inventors: Soumen Das, Qingchao Kong, Zhenghong Tao, Alexander Ship
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Publication number: 20210145475Abstract: A cannula supporting a percutaneous pump can include a proximal section with a first flexural modulus. The cannula can include one or more distal sections with a flexural modulus that is different than the first flexural modulus. The material and its arrangement along the length of the cannula can be selected so as to influence bending properties. This can, for example, allow efficient positioning of the cannula in a desired location without displacing the guidewire.Type: ApplicationFiled: October 26, 2020Publication date: May 20, 2021Inventors: Zhenghong Tao, Christopher Zarins, Dion Mraz, Stephen Vaughan, Julius Steven Becker
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Patent number: 11007350Abstract: A guidewire for backloading and inserting a percutaneous pump affixed to a cannula includes a proximal section made of a first material, with a first diameter, a rounded proximal end, and a distal end. The guidewire also includes a distal section made of a second material, with a second diameter which is greater than the first diameter, a distal end, and a proximal end abutting the distal end of the proximal section. The first material of the proximal section is selected to be softer than a material of the percutaneous pump to reduce damage to the pump during backloading. The distal section of the guidewire is configured to be stiffer than the proximal section to insert the percutaneous pump in a desired location without damaging the guidewire.Type: GrantFiled: April 11, 2019Date of Patent: May 18, 2021Assignee: ABIOMED, INC.Inventors: Zhenghong Tao, Michael Thomas Finnegan
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Patent number: 10849653Abstract: A cannula supporting a percutaneous pump can include a proximal section with a first flexural modulus. The cannula can include one or more distal sections with a flexural modulus that is different than the first flexural modulus. The material and its arrangement along the length of the cannula can be selected so as to influence bending properties. This can, for example, allow efficient positioning of the cannula in a desired location without displacing the guidewire.Type: GrantFiled: January 30, 2017Date of Patent: December 1, 2020Assignee: ABIOMED, INC.Inventors: Zhenghong Tao, Christopher Zarins, Dion Mraz, Stephen Vaughan, Julius Steven Becker
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Publication number: 20190232025Abstract: A guidewire for backloading and inserting a percutaneous pump affixed to a cannula includes a proximal section made of a first material, with a first diameter, a rounded proximal end, and a distal end. The guidewire also includes a distal section made of a second material, with a second diameter which is greater than the first diameter, a distal end, and a proximal end abutting the distal end of the proximal section. The first material of the proximal section is selected to be softer than a material of the percutaneous pump to reduce damage to the pump during backloading. The distal section of the guidewire is configured to be stiffer than the proximal section to insert the percutaneous pump in a desired location without damaging the guidewire.Type: ApplicationFiled: April 11, 2019Publication date: August 1, 2019Inventors: Zhenghong Tao, Michael Thomas Finnegan
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Patent number: 10300249Abstract: A guidewire for backloading and inserting a percutaneous pump affixed to a cannula includes a proximal section made of a first material, with a first diameter, a rounded proximal end, and a distal end. The guidewire also includes a distal section made of a second material, with a second diameter which is greater than the first diameter, a distal end, and a proximal end abutting the distal end of the proximal section. The first material of the proximal section is selected to be softer than a material of the percutaneous pump to reduce damage to the pump during backloading. The distal section of the guidewire is configured to be stiffer than the proximal section to insert the percutaneous pump in a desired location without damaging the guidewire.Type: GrantFiled: October 23, 2017Date of Patent: May 28, 2019Assignee: Abiomed, Inc.Inventors: Zhenghong Tao, Michael Thomas Finnegan
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Publication number: 20180104453Abstract: A guidewire for backloading and inserting a percutaneous pump affixed to a cannula includes a proximal section made of a first material, with a first diameter, a rounded proximal end, and a distal end. The guidewire also includes a distal section made of a second material, with a second diameter which is greater than the first diameter, a distal end, and a proximal end abutting the distal end of the proximal section. The first material of the proximal section is selected to be softer than a material of the percutaneous pump to reduce damage to the pump during backloading. The distal section of the guidewire is configured to be stiffer than the proximal section to insert the percutaneous pump in a desired location without damaging the guidewire.Type: ApplicationFiled: October 23, 2017Publication date: April 19, 2018Inventors: Zhenghong Tao, Michael Thomas Finnegan
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Patent number: 9821146Abstract: A guidewire for backloading and inserting a percutaneous pump affixed to a cannula includes a proximal section made of a first material, with a first diameter, a rounded proximal end, and a distal end. The guidewire also includes a distal section made of a second material, with a second diameter which is greater than the first diameter, a distal end, and a proximal end abutting the distal end of the proximal section. The first material of the proximal section is selected to be softer than a material of the percutaneous pump to reduce damage to the pump during backloading. The distal section of the guidewire is configured to be stiffer than the proximal section to insert the percutaneous pump in a desired location without damaging the guidewire.Type: GrantFiled: September 22, 2015Date of Patent: November 21, 2017Assignee: Abiomed, Inc.Inventors: Zhenghong Tao, Michael Thomas Finnegan
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Publication number: 20170215918Abstract: A cannula supporting a percutaneous pump can include a proximal section with a first flexural modulus. The cannula can include one or more distal sections with a flexural modulus that is different than the first flexural modulus. The material and its arrangement along the length of the cannula can be selected so as to influence bending properties. This can, for example, allow efficient positioning of the cannula in a desired location without displacing the guidewire.Type: ApplicationFiled: January 30, 2017Publication date: August 3, 2017Inventors: Zhenghong Tao, Christopher Zarins, Dion Mraz, Stephen Vaughan, Julius Steven Becker
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Publication number: 20170080189Abstract: A guidewire for backloading and inserting a percutaneous pump affixed to a cannula includes a proximal section made of a first material, with a first diameter, a rounded proximal end, and a distal end. The guidewire also includes a distal section made of a second material, with a second diameter which is greater than the first diameter, a distal end, and a proximal end abutting the distal end of the proximal section. The first material of the proximal section is selected to be softer than a material of the percutaneous pump to reduce damage to the pump during backloading. The distal section of the guidewire is configured to be stiffer than the proximal section to insert the percutaneous pump in a desired location without damaging the guidewire.Type: ApplicationFiled: September 22, 2015Publication date: March 23, 2017Inventors: Zhenghong Tao, Michael Thomas Finnegan
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Patent number: 8795576Abstract: A method is disclosed of applying a radiopaque marker to a cannula for use with an intracardiac pump, the method including: obtaining a band of radiopaque polymer material; placing the band around an outer diameter of the cannula, the cannula including a flexible tubular wall formed around and supported by a coil of shape memory material; placing a heat shrink tube around the band and the cannula; heating the band and the polymer tube to: soften the band, cause the heat shrink tube to shrink and apply force on the softened band towards the cannula, and cause the softened band to be welded to the cannula to form a radiopaque marker in a portion of the tubular wall; and removing the heat shrink tube.Type: GrantFiled: November 30, 2011Date of Patent: August 5, 2014Assignee: Abiomed, Inc.Inventors: Zhenghong Tao, Stephen Vaughan, Marie-Eve Mongeau
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Patent number: 8703501Abstract: The present invention provides a method for directed assembly of a conducting polymer. A method of the invention comprises providing a template such as an insulated template and electrophorectically assembling a conducting polymer thereon. Preferably, the template comprises a patterned electrode on which the conducting polymer is assembled. Moreover, the invention provides a method for transferring an assembled conducting polymer. For example, a method of the invention comprises providing a substrate such as a polymeric substrate and contacting a surface thereof with an assembled conducting polymer. The assembled conducting polymer can be disposed on a patterned electrode of a template, hi one embodiment, a method comprises removing the substrate. By removing the substrate, the assembled conducting polymer is transferred from the patterned electrode of the template to the substrate. The invention also provides a device with a template or substrate comprising an assembled conducting polymer.Type: GrantFiled: June 7, 2006Date of Patent: April 22, 2014Assignee: Northeastern UniversityInventors: Joey L. Mead, Carol M. F. Barry, Ahmed Busnaina, Ming Wei, Zhenghong Tao
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Patent number: 8235008Abstract: The present invention relates to a collapsible/foldable structure that may include a top roof and a bottom platform. A pair of sidewalls may be provided each of which may be pivotally attached to the roof. The sidewalls may include at least two side section such as an upper and middle section. The sidewalls may also include a lower side section. The upper and middle sections may be pivotally attached to one another and the middle and lower side section may be pivotally attached to one another so that the upper and middle sidewall sections can be pivoted inwardly towards the bottom platform to provide a collapsed condition. The sidewalls may also each contain an outer and an inner surface thereof wherein the outer surface of the upper side wall and the outer surface of the adjacent middle side wall form an angle that is greater than 180 degrees when the structure is in an expanded or collapsed condition.Type: GrantFiled: November 28, 2006Date of Patent: August 7, 2012Assignee: T.F.H. Publications, Inc.Inventors: Glen S. Axelrod, Ajay Gajria, Zhenghong Tao
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Publication number: 20120142995Abstract: A method is disclosed of applying a radiopaque marker to a cannula for use with an intracardiac pump, the method including: obtaining a band of radiopaque polymer material; placing the band around an outer diameter of the cannula, the cannula including a flexible tubular wall formed around and supported by a coil of shape memory material; placing a heat shrink tube around the band and the cannula; heating the band and the polymer tube to: soften the band, cause the heat shrink tube to shrink and apply force on the softened band towards the cannula, and cause the softened band to be welded to the cannula to form a radiopaque marker in a portion of the tubular wall; and removing the heat shrink tube.Type: ApplicationFiled: November 30, 2011Publication date: June 7, 2012Inventors: Zhenghong Tao, Stephen Vaughan, Marie-Eve Mongeau
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Patent number: 7810455Abstract: The present disclosure provides an animal chew comprising an elongated central portion of a first material and a pair of end caps of a second material. The end caps may be connected by a shaft and may vary from the central portion or from each other by one or more properties such as, color, texture, hardness, toughness, functionality, flavor, odor or moisture level. The central portion of the dog chew may comprise a bladder, or a composite of materials such as one or more layers overlying the bladder, having an attractive design in the shape and/or texture of, e.g. a sports ball. The composite may comprise a soft or even fibrous cover overlying an elastomeric bladder, the bladder formed to fit relatively loosely over the shaft, the composite providing a soft and easily compressed central portion compared to the end caps.Type: GrantFiled: October 10, 2007Date of Patent: October 12, 2010Assignee: T.F.H. Publications, Inc.Inventors: Glen S. Axelrod, Ajay Gajria, Zhenghong Tao
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Patent number: D980971Type: GrantFiled: September 16, 2021Date of Patent: March 14, 2023Assignee: ABIOMED, INCInventors: Christopher Zarins, Alexander Ship, Zhenghong Tao
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Patent number: D980972Type: GrantFiled: September 16, 2021Date of Patent: March 14, 2023Assignee: ABIOMED, INC.Inventors: Christopher Zarins, Alexander Ship, Zhenghong Tao