Stephen Norman Donnigan
Engineers at Fenwood Pl, Littleton, CO
License number
Colorado 35813
Issued Date
Jun 28, 2001
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
4541 Fenwood Pl, Littleton, CO 80130
Professional information
Adapter And Method For Converting Gas-Enhanced Electrosurgical Coagulation Instrument For Cutting
US Patent:
2008005, Mar 6, 2008
Filed:
Sep 1, 2006
Appl. No.:
11/515966
Inventors:
Kenneth D. Taylor - Broomfield CO, US
Stephen N. Donnigan - Highlands Ranch CO, US
Alan R. Lee - Littleton CO, US
Stephen N. Donnigan - Highlands Ranch CO, US
Alan R. Lee - Littleton CO, US
International Classification:
A61B 18/14
US Classification:
606 45, 606 49
Abstract:
An adapter includes a coupling mechanism that mates with a protruding nozzle of a gas-enhanced electrosurgical coagulation handpiece to convert the coagulation handpiece into a gas-enhanced electrosurgical cutting instrument. An adapter electrode and flow passageways of the adapter conduct electrical energy and gas from the nozzle of the coagulation handpiece to a protruding cutting end portion of an adapter electrode.
Jaw Movement Mechanism And Method For A Surgical Tool
US Patent:
2012002, Jan 26, 2012
Filed:
Jul 23, 2010
Appl. No.:
12/842327
Inventors:
Stephen Donnigan - Highlands Ranch CO, US
Eric Sugalski - Cambridge MA, US
Erik Holverson - Naperville IL, US
Randall Koplin - Sun Prairie WI, US
Michael Gregor - Chicago IL, US
Eric Sugalski - Cambridge MA, US
Erik Holverson - Naperville IL, US
Randall Koplin - Sun Prairie WI, US
Michael Gregor - Chicago IL, US
International Classification:
A61B 17/28
US Classification:
606206
Abstract:
A jaw movement mechanism for surgical tools has improved mechanical efficiency and other advantages. The jaw movement mechanism controls the orientation and position of a movable jaw relative to a fixed jaw through a range of movement of the movable jaw. The jaws maintain a parallel orientation throughout a portion of the range of movement of the movable jaw. The jaws maintain an angular relationship throughout a portion of the range of movement of the movable jaw.