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Design And Evaluation Of A Catheter Contact-Force Controller For Cardiac Ablation Therapy., Daniel Gelman, Allan C Skanes, Mohammad A Tavallaei, Maria Drangova
Design And Evaluation Of A Catheter Contact-Force Controller For Cardiac Ablation Therapy., Daniel Gelman, Allan C Skanes, Mohammad A Tavallaei, Maria Drangova
Medical Biophysics Publications
GOAL: Maintaining a constant contact force (CF) of an ablation catheter during cardiac catheter ablation therapy is clinically challenging due to inherent myocardial motion, often resulting in poor ablation of arrhythmogenic substrates. To enable a prescribed contact force to be applied during ablation, a catheter contact force controller (CCFC) was developed.
METHODS: The system includes a hand-held device attached to a commercial catheter and steerable sheath. A compact linear motor assembly attaches to an ablation catheter and autonomously controls its relative position within the shaft of the steerable sheath. A closed-loop control system is implemented within embedded electronics to enable …