RF energy delivery system
First Claim
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1. A radio frequency energy generation system for delivering radio frequency energy to a cardiac ablation catheter, comprising:
- a radio frequency generator adapted to deliver radio frequency energy in both monopolar and bipolar modes to an ablation catheter, the ablation catheter including an electrode array having at least one electrode, the radio frequency generator including a first output and a second output;
an EKG monitoring unit adapted to monitor and map signals detected by the at least one electrode, the EKG monitoring unit including a first input from the radio frequency generator and a second input from the radio frequency generator; and
an interface unit including a first inductor and a second inductor which couple the radio frequency generator and EKG monitoring unit to filter radio frequency signals from EKG signals received by the EKG monitoring unit, the first inductor being located between the first output of the radio frequency generator and the first input of the EKG monitoring unit and the second inductor being located between the second output of the radio frequency generator and the second input of the EKG monitoring unit.
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Abstract
A radio frequency tissue ablation system with a radio frequency generator, the generator comprising a radio frequency source, at least four independently controllable radio frequency outputs, a user interface and a controller configured to delivery radio frequency energy from the radio frequency source to the radio frequency outputs in one of at least two different output configurations in response to a configuration selection made through the user.
449 Citations
20 Claims
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1. A radio frequency energy generation system for delivering radio frequency energy to a cardiac ablation catheter, comprising:
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a radio frequency generator adapted to deliver radio frequency energy in both monopolar and bipolar modes to an ablation catheter, the ablation catheter including an electrode array having at least one electrode, the radio frequency generator including a first output and a second output; an EKG monitoring unit adapted to monitor and map signals detected by the at least one electrode, the EKG monitoring unit including a first input from the radio frequency generator and a second input from the radio frequency generator; and an interface unit including a first inductor and a second inductor which couple the radio frequency generator and EKG monitoring unit to filter radio frequency signals from EKG signals received by the EKG monitoring unit, the first inductor being located between the first output of the radio frequency generator and the first input of the EKG monitoring unit and the second inductor being located between the second output of the radio frequency generator and the second input of the EKG monitoring unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A radio frequency energy generation system for delivering radio frequency energy to a cardiac ablation catheter, comprising:
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a radio frequency generator adapted to deliver radio frequency energy in both monopolar and bipolar modes to an ablation catheter, the ablation catheter including an electrode array having at least one electrode configured to monitor the temperature of atrial tissue adjacent the electrode, the generator generating radio frequency energy based at least in part on the temperature of the atrial tissue, the radio frequency generator including a first output and a second output; an EKG monitoring unit adapted to monitor and map signals detected by the at least one electrode, the EKG monitoring unit including a first input from the radio frequency generator and a second input from the radio frequency generator, the first and second inputs of the EKG monitoring unit being in electrical communication with the first and second outputs of the radio frequency generator; and an interface unit including a first inductor and a second inductor which couple the radio frequency generator and EKG monitoring unit to filter radio frequency signals from EKG signals received by the EKG monitoring unit, the first inductor being located between the first output of the radio frequency generator and the first input of the EKG monitoring unit and the second inductor being located between the second output of the radio frequency generator and the second input of the EKG monitoring unit. - View Dependent Claims (18, 19)
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20. A radio frequency energy generation system for delivering radio frequency energy to a cardiac ablation catheter, comprising:
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a radio frequency generator adapted to deliver radio frequency energy in both monopolar and bipolar modes to an ablation catheter, wherein the ablation catheter comprises an electrode array comprising a plurality of electrodes configured to monitor a temperature of atrial tissue adjacent the plurality of electrodes, a first carrier arm, a second carrier arm, a third carrier arm, and a fourth carrier arm, the radio frequency generator generating radio frequency energy based at least in part on the temperature of the atrial tissue, the radio frequency generator including first radio frequency output and a second radio frequency output; an EKG monitoring unit configured to independently monitor temperature of atrial tissue measured by each of the plurality of electrodes and to map signals detected by each of the plurality of electrodes, the radio frequency generator being configured to generate and deliver radio frequency energy in a monopolar mode, a bipolar mode, and a combination of both bipolar and monopolar modes to each of the plurality of electrodes based at least in part on the independently monitored temperatures, the EKG monitoring unit including an EKG module, the EKG module having a first input and a second input; and an interface unit including a first inductor and a second inductor which couple the radio frequency generator and EKG monitoring unit to filter radio frequency signals from EKG signals received by the EKG monitoring unit, the first inductor being located between the first radio frequency output and the first input of the EKG module and the second inductor being located between the second radio frequency output and the second input of the EKG module, the inductor being a 1000 milliHenry inductor that attenuates a radio frequency energy signal of the radio frequency generator, the interface unit further including a capacitor between the first and second inputs of the EKG module.
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Specification