US 12,440,261 B2
Adjusting phases of multiphase ablation generator to detect contact
Assaf Govari, Haifa (IL)
Assigned to Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed by Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed on Nov. 1, 2023, as Appl. No. 18/499,859.
Application 18/499,859 is a continuation of application No. 16/709,802, filed on Dec. 10, 2019, granted, now 11,826,088.
Claims priority of provisional application 62/786,037, filed on Dec. 28, 2018.
Prior Publication US 2024/0065748 A1, Feb. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/12 (2006.01); A61B 18/00 (2006.01); A61B 18/14 (2006.01); A61B 17/00 (2006.01); A61B 18/16 (2006.01); A61B 34/20 (2016.01)
CPC A61B 18/1206 (2013.01) [A61B 18/1492 (2013.01); A61B 2017/00199 (2013.01); A61B 2018/00351 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00827 (2013.01); A61B 2018/00869 (2013.01); A61B 2018/00875 (2013.01); A61B 2018/00892 (2013.01); A61B 2018/1467 (2013.01); A61B 2018/167 (2013.01); A61B 2034/2051 (2016.02)] 17 Claims
OG exemplary drawing
 
1. A radio frequency (RF) ablation system, comprising:
signal generator circuitry configured to generate a plurality of RF ablation current signals each having a respective phase and a respective amplitude; and
control circuitry configured to reduce crosstalk between a first RF ablation signal of the plurality of RF ablation current signals and a second RF ablation signal of the plurality of RF ablation current signals, by:
adjusting the respective phase of the first RF ablation signal in relation to the respective phase of the second RF ablation signal such that the respective phase of the first RF ablation signal is different than the respective phase of the second RF ablation signal; and
adjusting the respective amplitude of the first RF ablation signal in relation to the respective amplitude of the second RF ablation signal.