Patent ID: 7918850

Claim:
A cardiac ablation system, comprising: a catheter adapted for insertion into a heart, having a distal tip and a distally disposed electrode thereon; a first generator for producing a pacing signal; a second generator for producing an ablation energy signal; a conductor in said catheter for transmitting said pacing signal and said ablation energy signal to said electrode for ablation of a specified area in said heart; a monitor operative to provide an indication of a capture of said pacing signal by said heart while said ablation energy signal is being applied to said electrode for application to said specified area in said heart, the second generator configured to produce the ablation energy signal when the capture of said pacing signal occurs as a heartbeat synchronizes with said pacing signal, the second generator configured to stop production of the ablation energy signal when the capture of said pacing signal does not occur; and a mixer for combining said pacing signal and said ablation energy signal to transmit said pacing signal and said ablation energy signal to said electrode simultaneously.