High frequency generator for electrosurgical cutting
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United States of America Patent
Stats
-
Dec 18, 2012
Grant Date -
Nov 5, 2009
app pub date -
Jun 24, 2009
filing date -
Jan 3, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A high frequency generator connected to an electrosurgical instrument comprising an electrical output terminal, a power source electrically connected to the output terminal, an arc detector, and a power control for controlling the electrical power delivered through the output terminal. The power control initially causes the delivery of a high output power for a phase for initial cutting support and thereafter, if ignition of an arc has occurred for a predetermined period of time to cause the delivery of reduced or no power and subsequently for a predetermined period of time to cause the delivery of reduced or no power at which no arc occurs, or if no ignition of an arc has occurred during the phase for initial cutting support, to cause the delivery of reduced or no power for a predetermined period of time of a short pause interval.
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