1
Michael P Whitman, John E Burbank, David A Nicholas: Carriage assembly for controlling a steering wire steering mechanism within a flexible shaft. Power Medical Interventions, Kenyon & Kenyon, February 11, 2003: US06517565 (529 worldwide citation)

A carriage assembly for controlling a steering wire steering mechanism within a flexible shaft, for use in gastrointestinal tract surgery, comprises a plurality of selectably engageable motors, including two drive motors for selectably rotating drive shafts of a surgical attachment, two steering mot ...


2
David A Nicholas, Ernie Aranyi, Boris Zvenyatsky, Paul A Matula, Stanley H Remiszewski, David T Green, Henry Bolanos: Articulating endoscopic surgical apparatus. United States Surgical Corporation, July 21, 1998: US05782859 (507 worldwide citation)

A surgical instrument is provided for use in endoscopic or laparoscopic procedures. The instrument includes a handle portion, an endoscopic portion extending from the handle portion, an articulating section pivotably connected to a distal end portion of the endoscopic portion, and a retractor assemb ...


3
David A Nicholas, Robert C Smith: Anastomosis instrument and method. Surgical Dynamics, July 4, 2000: US06083234 (412 worldwide citation)

A surgical instrument for performing an anastomosis includes a housing having a proximal end and a distal end; a shaft extending from the housing distal end; and a disposable loading unit configured and dimensioned to retain a plurality of surgical fasteners, the disposable loading unit extending fr ...


4
David A Nicholas, Ernie Aranyi, Boris Zvenyatsky, Paul A Matula, Stanley H Remiszewski, David T Green, Henry Bolanos: Articulating endoscopic surgical apparatus. United States Surgical Corporation, May 7, 1996: US05514157 (409 worldwide citation)

A surgical instrument is provided for use in endoscopic or laparoscopic procedures. The instrument includes a handle portion, an endoscopic portion extending from the handle portion, an articulating section pivotably connected to a distal end portion of the endoscopic portion, and a retractor assemb ...


5
David A Nicholas: Surgical instrument locking mechanism. United States Surgical Corporation, May 24, 1994: US05314424 (392 worldwide citation)

An endoscopic or laparoscopic surgical instrument having an internally disposed locking mechanism located within a barrel portion of a handle assembly. The instrument includes a handle assembly having a pivoting handle and a stationary handle, a barrel portion to which an elongated body assembly is ...


6
David A Nicholas, Robert C Smith, Scott E Manzo: Anastomosis instrument and method. United States Surgical Corporation, April 27, 2004: US06726697 (389 worldwide citation)

A surgical instrument for performing an anastomosis includes a housing having proximal and distal ends and a shaft extending from the distal end of the housing. The instrument also includes an actuator attached to the housing and a disposable loading unit configured for selective attachment to the s ...


7
Michael P Whitman, David A Nicholas: Surgical cutting and stapling device. Tyco Healthcare Group, September 27, 2011: US08025199 (360 worldwide citation)

The present invention, in accordance with various embodiments thereof, relates to a surgical device for at least one of cutting and stapling a section of tissue. The surgical device includes a housing including at least two drivers. The surgical device also includes an anvil mechanically attachable ...


8
David A Nicholas, Ernie Aranyi, Boris Zvenyatsky, Paul A Matula, Stanley H Remiszewski, David T Green, Henry Bolanos: Articulating endoscopic surgical apparatus. United States Surgical Corporation, August 8, 2006: US07087071 (356 worldwide citation)

A surgical instrument is provided for use in endoscopic or laparoscopic procedures. The instrument includes a handle portion, an endoscopic portion extending from the handle portion, an articulating section pivotably connected to a distal end portion of the endoscopic portion, and a retractor assemb ...


9
David A Nicholas, Robert C Smith, Scott E Manzo: Anastomosis instrument and method. United States Surgical Corporation, August 27, 2002: US06440146 (351 worldwide citation)

A surgical instrument for performing an anastomosis includes a housing having a proximal end and a distal end; a shaft extending from the housing distal end; and a disposable loading unit configured and dimensioned to retain a plurality of surgical fasteners, the disposable loading unit extending fr ...


10
Corbett W Stone, Stephen W Zlock, David A Nicholas: Surgical suturing apparatus with loading mechanism. United States Surgical Corporation, January 7, 1997: US05591181 (282 worldwide citation)

A surgical apparatus is provided for manipulating a surgical needle and an associated loading mechanism is provided for replacing the surgical needle. The surgical apparatus comprises an elongated body portion, first and second jaw elements extending from the body portion, securing means for securin ...