Surgery – Instruments – Electrical application
Reexamination Certificate
2005-07-13
2010-11-23
Sweet, Thomas J. (Department: 3739)
Surgery
Instruments
Electrical application
C606S041000, C606S051000, C606S032000, C606S001000
Reexamination Certificate
active
07837685
ABSTRACT:
Various safe switching mechanisms are provided for use with electrosurgical instruments which prevent arcing between the high-energy contacts as the high-energy source is activated. The switching mechanisms generally include a pair of high-energy contacts and a pair of activation contacts. An actuator is provided which initially engages the high-energy contacts in advance of engagement of the activation contacts to prevent arcing and subsequently disengages the activation contacts in advance of the high-energy contacts as the energy source is deactivated. A method of switching power to an electrosurgical instrument while avoiding damage to high-energy contacts is also disclosed.
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Couture Gary M.
Odom Darren
Sharp Robert
Weinberg Craig
Covidien AG
Hupczey, Jr. Ronald
Sweet Thomas J.
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