Advanced science applied to the formation of cardiac linear ablations
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AtriCure’s Coolrail linear pen is the latest ablation tool designed to create additional lesion lines on full-volume cardiac tissue. Using resistive heating, full thickness lesions are created by circulating internal cooling fluid in a closed-loop system, keeping surface temperature and tissue impedance low. As a result, energy is driven deeper into the tissue, reducing the potential for gaps associated with stamping lesions.
At t=0 seconds; current flow is initiated between the two electrodes. Current lines are depicted by the red lines.
At t=20 seconds; resistive heating occurs under the electrodes as energy is driven deeper into the tissue. Internal cooling channels maintain current density throughout the ablation cycle.
At t=40 seconds; energy continues along deeper conductive pathways until a full-thickness lesion is achieved.
*study based upon 5mm tissue thickness