US 11,779,391 B2
Forming a lesion based on pre-determined amount of abaltive energy vs lesion size curve
Assaf Govari, Haifa (IL); Andres Claudio Altmann, Haifa (IL); and Ella Ozeri, Binyamina (IL)
Assigned to Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed by BIOSENSE WEBSTER (ISRAEL) LTD., Yokneam (IL)
Filed on Feb. 28, 2019, as Appl. No. 16/288,868.
Prior Publication US 2020/0275972 A1, Sep. 3, 2020
Int. Cl. A61B 18/00 (2006.01); A61B 18/14 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 2018/00351 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00684 (2013.01); A61B 2018/00702 (2013.01); A61B 2018/00714 (2013.01); A61B 2018/00791 (2013.01); A61B 2018/00988 (2013.01); A61B 2218/002 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of ablation, comprising:
receiving, by a processor of a computing system, a user input indicating a target lesion size in tissue and a target tissue temperature to be maintained during ablation;
determining by the processor, based solely on: i) a pre-determined relation between lesion size and an amount of ablative energy required to maintain a constant tissue temperature during ablation, and ii) the inputted target lesion size and the inputted target tissue temperature, an amount of ablative energy required to be applied to the tissue by at least one electrode for achieving the inputted target lesion size at the inputted target tissue temperature, the pre-determined relation being one of a plurality of pre-determined relations between lesion size and ablative energy required to maintain tissue temperature corresponding to a plurality of tissue temperatures, the plurality of pre-determined relations being derived from at least one of a model or through calibration and stored in a memory accessible by the computing system; and
controlling an ablation probe to apply the amount of ablative energy by the at least one electrode for the inputted lesion size and inputted target tissue temperature based solely on the pre-determined relationship between lesion size and tissue temperature stored in the memory accessible by the computing system.