Saline-enhanced catheter for radiofrequency tumor ablation
AssigneeMedelec-Minimeca S.A.
InventorsJean-Francois Butty, Fernando Burdio, Antonio Laborda
Life of this patent
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Abstract
Catheter for the radiofrequency ablation of tissue, comprising at least one pair of bipolar electrodes adapted to function in bipolar mode, each bipolar electrode comprising supply channels adapted for the perfusion of saline solution around the electrodes, the catheter further comprising at least two end electrodes arranged towards opposed ends of the catheter, on either side of the pair of bipolar electrodes, said end electrodes adapted to function in monopolar mode.
Claims13
1-12. (canceled)
Catheter for the radiofrequency ablation of tissue, having a pointed tip for piercing insertion into said tissue, comprising at least one pair of bipolar electrodes adapted to function in bipolar mode, each bipolar electrode comprising supply channels adapted for the perfusion of saline solution around the electrodes, the catheter further comprising at least two end electrodes arranged towards opposed ends of the catheter, on either side of the pair of bipolar electrodes, said end electrodes adapted to function in monopolar mode.
Method of radiofrequency ablation of tissue, comprising the steps of:
- providing a catheter having at least one pair of bipolar electrodes with saline solution supply channels, and at least two monopolar electrodes arranged towards opposed ends of the catheter on either side of the pair of bipolar electrodes;
- inserting the catheter into a central region of the volume of tissue to be ablated;
- supplying electrical power to the monopolar electrodes to coagulate tissue therearound and seal the puncture performed by the catheter;
- perfusing saline solution into the tissue surrounding the bipolar electrodes and supplying electrical RF energy to the bipolar electrodes for thermal ablation.
Dependencies are inferred from the claim text.