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).

  • Patent number: 11109861
    Abstract: 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: Grant
    Filed: August 19, 2019
    Date of Patent: September 7, 2021
    Assignee: AESCULAP AG
    Inventors: Benjamin J. Matthias, Kevin L. Hudelson, Nicholas J. Terzulli, Thomas J. Palermo, Julian N. Nikolchev
  • Patent number: 10588634
    Abstract: 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: Grant
    Filed: July 11, 2017
    Date of Patent: March 17, 2020
    Assignee: Aesculap AG
    Inventors: Benjamin J. Matthias, Kevin L. Hudelson, Nicholas J. Terzulli, Thomas J. Palermo, Julian N. Nikolchev
  • Publication number: 20190365383
    Abstract: 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: Application
    Filed: August 19, 2019
    Publication date: December 5, 2019
    Inventors: BENJAMIN J. MATTHIAS, KEVIN L. HUDELSON, NICHOLAS J. TERZULLI, THOMAS J. PALERMO, JULIAN N. NIKOLCHEV
  • Publication number: 20190015101
    Abstract: 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: Application
    Filed: July 11, 2017
    Publication date: January 17, 2019
    Inventors: Benjamin J. MATTHIAS, Kevin J. HUDELSON, Nicholas J. TERZULLI, Thomas J. PALERMO, Julian N. NIKOLCHEV
  • Publication number: 20140318549
    Abstract: 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: Application
    Filed: May 8, 2014
    Publication date: October 30, 2014
    Applicant: Bayer Essure Inc.
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Patent number: 8733361
    Abstract: 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: Grant
    Filed: November 19, 2012
    Date of Patent: May 27, 2014
    Assignee: Bayer Essure Inc.
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Patent number: 8733360
    Abstract: 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: Grant
    Filed: August 20, 2012
    Date of Patent: May 27, 2014
    Assignee: Bayer Essure Inc.
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Patent number: 8613282
    Abstract: 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: Grant
    Filed: May 7, 2012
    Date of Patent: December 24, 2013
    Assignee: Conceptus, Inc.
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Patent number: 8356599
    Abstract: 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: Grant
    Filed: November 11, 2011
    Date of Patent: January 22, 2013
    Assignee: Conceptus, Inc.
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Publication number: 20120312305
    Abstract: 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: Application
    Filed: August 20, 2012
    Publication date: December 13, 2012
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Patent number: 8327852
    Abstract: 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: Grant
    Filed: November 11, 2011
    Date of Patent: December 11, 2012
    Assignee: Conceptus, Inc.
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Publication number: 20120216817
    Abstract: 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: Application
    Filed: May 7, 2012
    Publication date: August 30, 2012
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Patent number: 8171936
    Abstract: 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: Grant
    Filed: October 20, 2010
    Date of Patent: May 8, 2012
    Assignee: Conceptus, Inc.
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Publication number: 20120055491
    Abstract: 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: Application
    Filed: November 11, 2011
    Publication date: March 8, 2012
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Publication number: 20120055492
    Abstract: 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: Application
    Filed: November 11, 2011
    Publication date: March 8, 2012
    Inventors: Julian N. NIKOLCHEV, Dai T. TON, Ashish KHERA, Donnell W. GURSKIS, Steven BACICH
  • Patent number: 7921848
    Abstract: 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: Grant
    Filed: August 13, 2003
    Date of Patent: April 12, 2011
    Assignee: Conceptus, Inc.
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Publication number: 20110030696
    Abstract: 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: Application
    Filed: October 20, 2010
    Publication date: February 10, 2011
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Patent number: 7686020
    Abstract: 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: Grant
    Filed: August 31, 2006
    Date of Patent: March 30, 2010
    Assignee: Conceptus, Inc.
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Publication number: 20040127918
    Abstract: 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: Application
    Filed: August 13, 2003
    Publication date: July 1, 2004
    Applicant: CONCEPTUS, INC.
    Inventors: Julian N. Nikolchev, Dai T. Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
  • Publication number: 20040079377
    Abstract: 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: Application
    Filed: June 20, 2003
    Publication date: April 29, 2004
    Applicant: CONCEPTUS, INC.
    Inventors: Julian N. Nikolchev, Dai T. Ton