Patents by Inventor Dai T. Ton
Dai T. Ton 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: 20140318549Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization s effected by passing a current through there resilisent structure to the tubal walls.Type: ApplicationFiled: May 8, 2014Publication date: October 30, 2014Applicant: Bayer Essure Inc.Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Patent number: 8733360Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization s effected by passing a current through there resilient structure to the tubal walls.Type: GrantFiled: August 20, 2012Date of Patent: May 27, 2014Assignee: Bayer Essure Inc.Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Patent number: 8733361Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization is effected by passing a current through the resilient structure to the tubal walls.Type: GrantFiled: November 19, 2012Date of Patent: May 27, 2014Assignee: Bayer Essure Inc.Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Patent number: 8613282Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization is effected by passing a current through there resilisent structure to the tubal walls.Type: GrantFiled: May 7, 2012Date of Patent: December 24, 2013Assignee: Conceptus, Inc.Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Patent number: 8356599Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilizations effected by passing a current through there resilisent structure to the tubal walls.Type: GrantFiled: November 11, 2011Date of Patent: January 22, 2013Assignee: Conceptus, Inc.Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Publication number: 20120312305Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization s effected by passing a current through there resilient structure to the tubal walls.Type: ApplicationFiled: August 20, 2012Publication date: December 13, 2012Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Patent number: 8327852Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization s effected by passing a current through there resilisent structure to the tubal walls.Type: GrantFiled: November 11, 2011Date of Patent: December 11, 2012Assignee: Conceptus, Inc.Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Publication number: 20120216817Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization is effected by passing a current through there resilisent structure to the tubal walls.Type: ApplicationFiled: May 7, 2012Publication date: August 30, 2012Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Patent number: 8171936Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization s effected by passing a current through there resilient structure to the tubal walls.Type: GrantFiled: October 20, 2010Date of Patent: May 8, 2012Assignee: Conceptus, Inc.Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Publication number: 20120055491Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization s effected by passing a current through there resilisent structure to the tubal walls.Type: ApplicationFiled: November 11, 2011Publication date: March 8, 2012Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Publication number: 20120055492Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization s effected by passing a current through there resilisent structure to the tubal walls.Type: ApplicationFiled: November 11, 2011Publication date: March 8, 2012Inventors: Julian N. NIKOLCHEV, Dai T. TON, Ashish KHERA, Donnell W. GURSKIS, Steven BACICH
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Patent number: 7921848Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or a copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has a helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization is effected by passing a current through the resilient structure to the tubal walls.Type: GrantFiled: August 13, 2003Date of Patent: April 12, 2011Assignee: Conceptus, Inc.Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Publication number: 20110030696Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization s effected by passing a current through there resilient structure to the tubal walls.Type: ApplicationFiled: October 20, 2010Publication date: February 10, 2011Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Patent number: 7785361Abstract: Medical devices (100) and methods for delivery or implantation of prostheses (106) within hollow body organs and vessels (600) or other luminal anatomy are disclosed. The subject technologies may be used in the treatment of atherosclerosis in stenting procedures or for other purposes.Type: GrantFiled: March 23, 2004Date of Patent: August 31, 2010Inventors: Julian Nikolchev, Dai T. Ton, William R. George, Nicholas C. Debeer
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Patent number: 7771463Abstract: Medical devices and methods for delivery or implantation of tubular prostheses within hollow body organs and vessels or other luminal anatomy are disclosed. A prosthesis is held in a compressed from upon an inner wire of a delivery guide by twisting the device. The subject technologies may be used in the treatment of atherosclerosis in stenting procedures or for other purposes.Type: GrantFiled: November 2, 2005Date of Patent: August 10, 2010Inventors: Dai T. Ton, William R. George, David Licata
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Patent number: 7686020Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or a copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has a helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization is effected by passing a current through the resilient structure to the tubal walls.Type: GrantFiled: August 31, 2006Date of Patent: March 30, 2010Assignee: Conceptus, Inc.Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
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Patent number: 7651521Abstract: Medical device and methods for delivery or implantation of prostheses within hollow body organs and vessels or other luminal anatomy are disclosed. The subject technologies may be used in the treatment of atherosclerosis in stenting procedures. For such purposes, a self-expanding stent is deployed in connection with an angioplasty procedure with a corewire actuated delivery system having a fixed distal stent-carrying extension. Withdrawal of the corewire retracts a restraint freeing the stent from a collapsed state, whereupon the stent assumes an expanded configuration set in apposition to the interior surface of a vessel lumen in order to help maintain the vessel open.Type: GrantFiled: November 18, 2004Date of Patent: January 26, 2010Assignee: CardioMind, Inc.Inventors: Dai T. Ton, Julian Nikolchev, Nicholas C. Debeer, William R. George
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Publication number: 20090281611Abstract: Medical device and methods for delivery or implantation of prostheses within hollow body organs and vessels or other luminal anatomy are disclosed. The subject technologies may be used in the treatment of atherosclerosis in stenting procedures. For such purposes, a self-expanding stent may be deployed in connection with an angioplasty procedure with a sliding restraint based delivery system adapted for simplified use. In the system, the sliding restraint is sized, in coordination with a fixed sleeve accepting a core wire to actuate the restraint to effect an anchoring function with the sleeve so that the stent is not inadvertently advanced during deployment.Type: ApplicationFiled: May 13, 2009Publication date: November 12, 2009Applicant: CardioMind, Inc.Inventors: William R. George, Jean C. Chang, Dai T. Ton, Nicholas C. De Beer, Julian Nikolchev, Frank Becking
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Publication number: 20080221666Abstract: Medical devices and methods for delivery or implantation of prostheses within hollow body organs and vessels or other luminal anatomy are disclosed. The subject technologies can be used in the treatment of atherosclerosis in stenting procedures or be used in variety of other procedures. The systems can employ a self expanding stent restrained by one or more members released by an electrolytically erodable latch.Type: ApplicationFiled: December 14, 2007Publication date: September 11, 2008Applicant: CardioMind, Inc.Inventors: David Licata, Sudip Pandya, William R. George, Roman Turovskiy, Dai T. Ton, James C. Liu
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Publication number: 20040127918Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or a copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has a helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization is effected by passing a current through the resilient structure to the tubal walls.Type: ApplicationFiled: August 13, 2003Publication date: July 1, 2004Applicant: CONCEPTUS, INC.Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich