RF treatment apparatus

Details RF treatment apparatus RF treatment apparatus

1994-08-24

1997-02-04

Sykes, Angela D.

Surgery

Instruments

Electrical application

606 45, 606 42, 604 22, 607102, A61B 1739

Patent

active

055993451

ABSTRACT:
An RF treatment apparatus includes a catheter with a catheter lumen. A removable needle electrode is positioned in the catheter lumen in a fixed relationship to the catheter. The needle electrode includes a needle lumen and a needle electrode distal end. A removable introducer is slidably positioned in the needle lumen. The introducer includes an introducer distal end. A first sensor is positioned on a surface of the needle electrode or the insulator. An RF power source is coupled to the needle electrode and a return electrode. An insulator sleeve is slidably positioned around the electrode and includes a second sensor. Resources are associated with the electrodes, sensors as well as the RF power source for maintaining a selected power at the electrode independent of changes in current or voltage.

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