Patents by Inventor Julian N. Nikolchev
Julian N. Nikolchev 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: 11109861Abstract: An exemplary surgical method includes possessing a loader that holds a curved-tip cartridge, and a surgical stapler that includes an anvil and channel at a distal end thereof; causing at least one of the loader and the channel to move toward the other; as a result of the causing, engaging the loader and the curved-tip cartridge with the channel; and causing at least one of the loader and the channel to move away from the other, such that the curved-tip cartridge remains engaged with the channel. That method further may include actuating the surgical stapler; grasping the unloader; sliding the unloader toward the channel; disengaging the curved-tip cartridge from the channel with the unloader; and withdrawing the unloader away from said channel, wherein the withdrawing causes the curved-tip cartridge to disengage from the channel.Type: GrantFiled: August 19, 2019Date of Patent: September 7, 2021Assignee: AESCULAP AGInventors: Benjamin J. Matthias, Kevin L. Hudelson, Nicholas J. Terzulli, Thomas J. Palermo, Julian N. Nikolchev
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Patent number: 10588634Abstract: An exemplary surgical method includes possessing a loader that holds a curved-tip cartridge, and a surgical stapler that includes an anvil and channel at a distal end thereof; causing at least one of the loader and the channel to move toward the other; as a result of the causing, engaging the loader and the curved-tip cartridge with the channel; and causing at least one of the loader and the channel to move away from the other, such that the curved-tip cartridge remains engaged with the channel. That method further may include actuating the surgical stapler; grasping the unloader; sliding the unloader toward the channel; disengaging the curved-tip cartridge from the channel with the unloader; and withdrawing the unloader away from said channel, wherein the withdrawing causes the curved-tip cartridge to disengage from the channel.Type: GrantFiled: July 11, 2017Date of Patent: March 17, 2020Assignee: Aesculap AGInventors: Benjamin J. Matthias, Kevin L. Hudelson, Nicholas J. Terzulli, Thomas J. Palermo, Julian N. Nikolchev
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Publication number: 20190365383Abstract: An exemplary surgical method includes possessing a loader that holds a curved-tip cartridge, and a surgical stapler that includes an anvil and channel at a distal end thereof; causing at least one of the loader and the channel to move toward the other; as a result of the causing, engaging the loader and the curved-tip cartridge with the channel; and causing at least one of the loader and the channel to move away from the other, such that the curved-tip cartridge remains engaged with the channel. That method further may include actuating the surgical stapler; grasping the unloader; sliding the unloader toward the channel; disengaging the curved-tip cartridge from the channel with the unloader; and withdrawing the unloader away from said channel, wherein the withdrawing causes the curved-tip cartridge to disengage from the channel.Type: ApplicationFiled: August 19, 2019Publication date: December 5, 2019Inventors: BENJAMIN J. MATTHIAS, KEVIN L. HUDELSON, NICHOLAS J. TERZULLI, THOMAS J. PALERMO, JULIAN N. NIKOLCHEV
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Publication number: 20190015101Abstract: An exemplary surgical method includes possessing a loader that holds a curved-tip cartridge, and a surgical stapler that includes an anvil and channel at a distal end thereof; causing at least one of the loader and the channel to move toward the other; as a result of the causing, engaging the loader and the curved-tip cartridge with the channel; and causing at least one of the loader and the channel to move away from the other, such that the curved-tip cartridge remains engaged with the channel. That method further may include actuating the surgical stapler; grasping the unloader; sliding the unloader toward the channel; disengaging the curved-tip cartridge from the channel with the unloader; and withdrawing the unloader away from said channel, wherein the withdrawing causes the curved-tip cartridge to disengage from the channel.Type: ApplicationFiled: July 11, 2017Publication date: January 17, 2019Inventors: Benjamin J. MATTHIAS, Kevin J. HUDELSON, Nicholas J. TERZULLI, Thomas J. PALERMO, Julian N. NIKOLCHEV
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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: 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: 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: 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: 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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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
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Publication number: 20040079377Abstract: 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: June 20, 2003Publication date: April 29, 2004Applicant: CONCEPTUS, INC.Inventors: Julian N. Nikolchev, Dai T. Ton