1
Julian N Nikolchev: Methods and devices for the localization of lesions in solid tissue. Pro Duct Health, Banner & Witcoff, January 8, 2002: US06336904 (118 worldwide citation)

Lesions, biopsy sites, and other target sites in solid tissue are localized by positioning an illumination source adjacent the lesion in the solid tissue. Usually, the illumination source is positioned using a localization wire which is percutaneously introduced to the lesion. Alternatively, the ill ...


2
Dai T Ton, Julian N Nikolchev: Endoluminal coil delivery system having a mechanical release mechanism. Conceptus, Townsend and Townsend and Crew, May 5, 1998: US05746769 (103 worldwide citation)

The invention provides endoluminal coil delivery systems and methods for positioning a coil within a body lumen. In particular, the device uses a mechanical latch in the form of jaws to positively engage the coil during positioning. The coil may be restrained in a straight configuration from within ...


3
Julian N Nikolchev, Dai T Ton, Ashish Khera, Donnell W Gurskis, Steven Bacich: Contraceptive transcervical fallopian tube occlusion devices and methods. Conceptus, Mark D Barrish Esq, Townsend and Townsend and Crew, March 16, 2004: US06705323 (94 worldwide citation)

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 reg ...


4
Julian N Nikolchev, Dai T Ton, Ashish Khera, Donnell W Gurskis, Steven Bacich: Contraceptive transcervical fallopian tube occlusion devices and methods. Conceptus, Mark D Barrish Esq, Townsend & Townsend&CrewLLP, October 21, 2003: US06634361 (91 worldwide citation)

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 reg ...


5
Robert E Woodard, Julian N Nikolchev, Phillip M Olsen: Radiation-transmitting sheath and methods for its use. Conceptus, Townsend and Townsend and Crew, September 7, 1999: US05947958 (87 worldwide citation)

A radiation transmitting sheath comprises a tubular body having a radiation guide extending axially therein. A coupler for attaching a radiation source is provided at the proximal end of the sheath. A dispersive tip for dispersing radiation from the radiation guide over a conical field is provided a ...


6
John Kerin, Charles Milo, Julian N Nikolchev, James Doty, Dai T Ton, Richard Hill, Marc Schraner, Tom Kramer: Access catheter and method for maintaining separation between a falloposcope and a tubal wall. Conceptus, Townsend and Townsend and Crew, February 23, 1999: US05873815 (83 worldwide citation)

A method and apparatus are provided for imaging a narrow body lumen, the method comprising maintaining separation between a distal end of an optical viewing scope and a lumen wall with a spacing structure which extends distally from the distal end of an access catheter. Optional spacing structures i ...


7
Julian N Nikolchev, Dai T Ton, Ashish Khera, Donnell W Gurskis, Steven Bacich: Contraceptive transcervical fallopian tube occlusion devices and methods. Conceptus, Mark D Barrish Esq, Townsend Townsend & Crew, March 4, 2003: US06526979 (82 worldwide citation)

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 reg ...


8
John Kerin, Charles Milo, Julian N Nikolchev, James Doty, Dai T Ton, Richard Hill, Marc Schraner, Tom Kramer: Access catheter and method for maintaining separation between a falloposcope and a tubal wall. Conceptus, Nena Bains Esq, Townsend Townsend & Crew, March 6, 2001: US06196966 (64 worldwide citation)

A method and apparatus are provided for imaging a narrow body lumen, the method comprising maintaining separation between a distal end of an optical viewing scope and a lumen wall with a spacing structure which extends distally from the distal end of an access catheter. Optional spacing structures i ...


9
Julian N Nikolchev, Dai T Ton, Ashish Khera, Donnell W Gurskis, Steven Bacich: Contraceptive transcervical fallopian tube occlusion devices and methods. Conceptus, Mark D Barrish Esq, Townsend & Townsend & Crew, February 3, 2004: US06684884 (63 worldwide citation)

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 reg ...


10
Julian N Nikolchev, Dai T Ton, Ashish Khera, Donnell W Gurskis, Steven Bacich: Contraceptive transcervical fallopian tube occlusion devices and methods. Conceptus, Blakely Sokoloff Taylor & Zafman, April 12, 2011: US07921848 (12 worldwide citation)

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 reg ...