Surgery – Instruments – Electrical application
Reexamination Certificate
2007-07-10
2007-07-10
Cohen, Lee S. (Department: 3739)
Surgery
Instruments
Electrical application
C606S045000, C606S046000, C604S035000, C604S114000, C607S105000, C607S113000
Reexamination Certificate
active
10713643
ABSTRACT:
Electrosurgical methods and apparatus for the controlled ablation of tissue from a target site of a patient. The instrument includes a shaft having proximal and distal end portion and an active screen electrode on the distal end portion; a return electrode arranged on the shaft spaced from the screen electrode; at least one electrical connector extending through the shaft that connects the active electrode with a high frequency power supply; at least one electrical coupling member (such as a ball wire) adapted to secure the active screen electrode to the shaft and to electrically couple the screen electrode to the at least one electrical connector; and an aspiration lumen within the shaft having a distal opening coupled to the single active electrode wherein the screen electrode inhibits clogging of the aspiration lumen.
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ArthroCare Corporation
Batt Richard R.
Cohen Lee S.
Raffle John
LandOfFree
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