Radio-frequency ablation and direct current electroporation catheters
a technology of direct current and electroporation catheter, which is applied in the field of radiofrequency ablation catheters, can solve the problems of difficult to keep adequate contact between electrodes and tissue for a sufficient length of time, affecting the quality of life of the patient,
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[0024]Aspects of the present disclosure are directed to flexible catheters for both electrophysiology mapping and ablation using a high-density array of electrodes. These catheters may be used to detect electrophysiological characteristics of tissue in contact with the electrodes, and conduct monopolar and / or bipolar ablations of the tissue. In particular, the instant disclosure relates to both planar and basket-type end effectors coupled to a distal end of a catheter shaft.
[0025]To conduct an electrophysiology mapping of a cardiac muscle, pacing is conducted. During the pacing procedure, adjacent electrodes are assigned to bipole pairings, and each bipole pair samples the electrical characteristics of the tissue between the pair. The resulting electrical signals are received and processed by controller circuitry. The controller circuitry develops an electrophysiology mapping by associating the signal samples from each bipole pair with a location of the tissue sampled by the bipole ...
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