Cardiac ablation catheter having resistive mapping electrodes
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United States of America Patent
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Mar 15, 1994
Grant Date -
N/A
app pub date -
Jun 30, 1992
filing date -
Jun 30, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cardiac ablation catheter includes a distal, energy delivering electrode and at least one sensing electrode proximal to the energy delivering electrode. The catheter communicates with an electrosurgical generator which provides electrical energy, such as a radio frequency energy, to the distal electrode. The sensing electrodes communicate with a monitor for recording electrical signals within the heart. One or more resistors is positioned adjacent each sensing electrode, and in series with a conductor associated with the sensing electrode, to reduce or eliminate any current tending to be emitted through the sensing electrodes as a result of delivery of electrical current through the distal electrode.
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