Surgery – Instruments – Electrical application
Patent
1992-04-10
1996-11-12
Sykes, Angela D.
Surgery
Instruments
Electrical application
606 31, 606 42, 606 45, 607101, 607102, A61B 1739
Patent
active
055735339
ABSTRACT:
A system for delivering radiofrequency energy to ablate cardiac tissue comprises a radiofrequency generator and an intravascular catheter. The catheter includes both a radiofrequency ablation electrode and a temperature sensor within its distal end. Delivery of power to the ablation electrode may then be controlled based on electrode temperature using a cascade control system wherein analog temperature controller adjusts the set point to a secondary power controller. Alternatively, power delivered to the patient can be controlled directly based on a power set point. Reuse of the catheter is prevented by a fuse within the catheter which is sensed prier to power delivery and broken prior to disconnection of the catheter.
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Medtronic CardioRhythm
Peffley Michael
Sykes Angela D.
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