Patents by Inventor Julian Nikolchev

Julian 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: 7785361
    Abstract: 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: Grant
    Filed: March 23, 2004
    Date of Patent: August 31, 2010
    Inventors: Julian Nikolchev, Dai T. Ton, William R. George, Nicholas C. Debeer
  • Patent number: 7699884
    Abstract: 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 may be used in the treatment of atherosclerosis in stenting procedures or be used in a variety of other procedures.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: April 20, 2010
    Assignee: Cardiomind, Inc.
    Inventors: Joe Kavinaugh, Frank Becking, William R. George, Julian Nikolchev
  • Publication number: 20100076440
    Abstract: A microfracture instrument for applying microfracture therapy to a bone, the microfracture instrument comprising: an elongated shaft comprising a distal end and a proximal end; a needle comprising a body terminating in at least one sharp point, the needle being movably mounted to the distal end of the shaft for movement between an extended position for engaging the bone with the at least one sharp point of the needle and a retracted position for withdrawing the at least one sharp point of the needle from the bone; and a drive shaft movably mounted to the elongated shaft, the drive shaft being connected to the body of the needle so that movement of the drive shaft relative to the elongated shaft moves the needle between its extended position and its retracted position.
    Type: Application
    Filed: May 8, 2009
    Publication date: March 25, 2010
    Inventors: Chris Pamichev, Julian Nikolchev, James R. Flom, Lynette Ross, Thomas Weisel, Matthew Frushell, William Kaiser
  • Patent number: 7651521
    Abstract: 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: Grant
    Filed: November 18, 2004
    Date of Patent: January 26, 2010
    Assignee: CardioMind, Inc.
    Inventors: Dai T. Ton, Julian Nikolchev, Nicholas C. Debeer, William R. George
  • Publication number: 20090281611
    Abstract: 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: Application
    Filed: May 13, 2009
    Publication date: November 12, 2009
    Applicant: CardioMind, Inc.
    Inventors: William R. George, Jean C. Chang, Dai T. Ton, Nicholas C. De Beer, Julian Nikolchev, Frank Becking
  • Publication number: 20090182340
    Abstract: A safety needle comprising a handle; a hollow needle; a trigger carriage; an obturator; a spring; a trigger; a first latch and a second latch; the first latch, second latch and trigger being configured so that when the trigger carriage is in a distal position and the first latch set, and the trigger is thereafter pulled proximally, the first latch is released and the trigger carriage moves proximally into a proximal position, and thereafter releasing the trigger causes the trigger carriage to move into an intermediate position and set the second latch; and further wherein, when the trigger carriage is in its intermediate position and the distal end of the obturator engages tissue, the trigger carriage is moved proximally so as to release the second latch.
    Type: Application
    Filed: September 15, 2008
    Publication date: July 16, 2009
    Inventors: Julian Nikolchev, Chris Pamichev
  • Publication number: 20090069845
    Abstract: A method and apparatus for re-attaching the labrum of a hip joint.
    Type: Application
    Filed: April 21, 2008
    Publication date: March 12, 2009
    Inventors: Matthew Frushell, Julian Nikolchev, John Savarese
  • Patent number: 7428904
    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 imposing a secondary shape on a resilient structure, 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. The resilient structure is then restrained by the walls of the fallopian tube, imposing anchoring forces as it tries to resume the secondary shape.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: September 30, 2008
    Assignee: Alien Technology Corporation
    Inventors: Julian Nikolchev, Dai Ton, Amy Thurmond
  • Publication number: 20070270708
    Abstract: The invention provides methods, devices and systems for collecting breast ductal fluid comprising cellular material and other useful markers for analysis. The methods typically comprise access of at least one breast duct and collecting materials from that duct separate from all other ducts in the breast. The devices comprise ductal access devices that provide the opportunity to collect fluid from a single duct separate from all the other ducts in the breast. The systems employ the methods and devices that used together provide systems for analysis of a breast condition in a patient specific to accessed breast ducts. The methods, devices and systems are particularly useful for indentification of breast precancer or cancer in patient.
    Type: Application
    Filed: July 24, 2007
    Publication date: November 22, 2007
    Inventors: David Hung, Christopher Ken, Xuanmin He, Phillip Olsen, Julian Nikolchev, Shawn O'Leary, Pam Sayavong
  • Publication number: 20070225789
    Abstract: 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 may be used in the treatment of atherosclerosis in stenting procedures or be used in a variety of other procedures.
    Type: Application
    Filed: March 22, 2006
    Publication date: September 27, 2007
    Inventors: Joseph T. Kavanagh, Frank P. Becking, William R. George, Julian Nikolchev, Victoria Tran
  • Publication number: 20070218056
    Abstract: The invention provides methods of identifying premalignant and malignant breast cancer, determining lymph node involvement in patients diagnosed with premalignant and malignant breast cancer growths, and methods of treating premalignant and malignant breast cancer. The diagnostic and methods comprise intraductal administration of a targeting molecule either alone acting as an identifying agent, or coupled to an identifying agent; the therapeutic methods comprise intraductal administration of a targeting molecule coupled to a therapeutic agent or administration of a targeting molecule having therapeutic activity in and of itself.
    Type: Application
    Filed: February 12, 2007
    Publication date: September 20, 2007
    Inventors: Susan Love, Julian Nikolchev, David Hung
  • Publication number: 20070189968
    Abstract: The invention is a gel composition for delivery to a breast milk duct prior to surgical excision of breast tissue including cancerous lesions. The invention also provides methods of mapping all or nearly all of a breast milk duct prior to surgical excision of breast tissue, and method of identifying part or all of a breast duct or ducts as a surgical aide to a breast surgeon. Kits to support these methods and including these compositions are also provided.
    Type: Application
    Filed: March 20, 2007
    Publication date: August 16, 2007
    Inventors: Annette Bianchi, Julian Nikolchev, David Hung, Ron Eyal, Linda Gont, Susan Love, Tina Patel
  • Publication number: 20070144528
    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 imposing a secondary shape on a resilient structure, 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. The resilient structure is then restrained by the walls of the fallopian tube, imposing anchoring forces as it tries to resume the secondary shape.
    Type: Application
    Filed: February 26, 2007
    Publication date: June 28, 2007
    Inventors: Julian Nikolchev, Dai Ton, Amy Thurmond
  • Publication number: 20070100420
    Abstract: 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 may be used in the treatment of atherosclerosis in stenting procedures or be used in a variety of other procedures.
    Type: Application
    Filed: March 22, 2006
    Publication date: May 3, 2007
    Inventors: Joseph Kavanagh, Victoria Tran, Frank Becking, William George, Julian Nikolchev
  • Publication number: 20070062542
    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: November 20, 2006
    Publication date: March 22, 2007
    Inventors: Julian Nikolchev, Dai Ton, Ashish Khera, Donnell Gurskis, Steven Bacich
  • Publication number: 20070044808
    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 imposing a secondary shape on a resilient structure, 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. The resilient structure is then restrained by the walls of the fallopian tube, imposing anchoring forces as it tries to resume the secondary shape.
    Type: Application
    Filed: July 31, 2006
    Publication date: March 1, 2007
    Applicant: CONCEPTUS, INC., a California corporation
    Inventors: Julian Nikolchev, Dai Ton, Amy Thurmond
  • Publication number: 20070043419
    Abstract: 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: Application
    Filed: March 23, 2004
    Publication date: February 22, 2007
    Applicant: CARDIOMIND, INC.
    Inventors: Julian Nikolchev, Dai Ton, William George, Nicholas Debeer
  • Publication number: 20070000496
    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 31, 2006
    Publication date: January 4, 2007
    Inventors: Julian Nikolchev, Dai Ton, Ashish Khera, Donnell Gurskis, Steven Bacich
  • Publication number: 20060144406
    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: March 2, 2006
    Publication date: July 6, 2006
    Inventors: Julian Nikolchev, Dai Ton, Ashish Khera, Donnell Gurskis, Steven Bacich
  • Publication number: 20050209672
    Abstract: 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: Application
    Filed: March 2, 2004
    Publication date: September 22, 2005
    Inventors: William George, Jean Chang, Dai Ton, Nicholas De Beer, Julian Nikolchev, Frank Becking