US 11,931,182 B2
Catheter with plurality of sensing electrodes used as ablation electrode
Assaf Govari, Haifa (IL)
Assigned to Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed by Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed on Dec. 9, 2019, as Appl. No. 16/708,285.
Prior Publication US 2021/0169421 A1, Jun. 10, 2021
Int. Cl. A61B 5/00 (2006.01); A61B 5/0538 (2021.01); A61B 5/06 (2006.01); A61B 18/14 (2006.01); A61M 25/00 (2006.01); A61B 18/00 (2006.01)
CPC A61B 5/6858 (2013.01) [A61B 5/0538 (2013.01); A61B 5/068 (2013.01); A61B 5/6853 (2013.01); A61B 18/1492 (2013.01); A61M 25/0074 (2013.01); A61B 2018/00029 (2013.01); A61B 2018/0022 (2013.01); A61B 2018/00375 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00613 (2013.01); A61B 2018/00791 (2013.01); A61B 2018/00839 (2013.01); A61B 2018/00875 (2013.01); A61B 2018/00958 (2013.01); A61B 2018/1467 (2013.01); A61B 2218/003 (2013.01); A61M 2205/054 (2013.01); A61M 2205/33 (2013.01); A61M 2230/65 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A system, comprising:
a switching assembly, which is connected to multiple electrodes that are disposed on an expandable distal end of a catheter, the switching assembly configured to electrically connect the multiple electrodes to one of a position tracking system, an electro physiological (EP) sensing module and a generator of an ablative power, and
a processor, which is configured to control the switching assembly to switch the electrodes between the position tracking system, the EP sensing module, and the generator of the ablative power;
wherein when a detected impedance is indicative of an electrode of the multiple electrodes in contact with tissue, the processor is configured to switch the electrode to the generator of ablative power or the EP sensing module and the remaining electrodes of the multiple electrodes to the position tracking system; and
wherein when a detected impedance is indicative of the electrode of the multiple electrodes in contact with surrounding blood, the processor is configured to switch the electrode to the position tracking system.