US 12,324,618 B2
Ablation probe
Volker Mayer, Tuebingen (DE)
Assigned to ERBE ELEKTROMEDIZIN GMBH, Tuebingen (DE)
Filed by Erbe Elektromedizin GmbH, Tuebingen (DE)
Filed on Aug. 27, 2020, as Appl. No. 17/004,606.
Claims priority of application No. 19195658 (EP), filed on Sep. 5, 2019.
Prior Publication US 2021/0068894 A1, Mar. 11, 2021
Int. Cl. A61B 18/12 (2006.01); A61B 18/14 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 2018/00011 (2013.01); A61B 2018/00077 (2013.01); A61B 2018/00172 (2013.01); A61B 2018/00577 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system for radio frequency ablation comprising:
a radio frequency ablation probe (10) with inner cooling, and
an RF generator;
the radio frequency ablation probe (10) with inner cooling comprising:
a flexible hose (12) that comprises a channel (18) limited by a hose wall (17) provided with at least one RF ablation electrode (15) at a distal end section (14) thereof, wherein the at least one RF ablation electrode (15) is configured for heating a tissue adjacent thereto or in contact therewith via application of an RF current;
wherein the at least one RF ablation electrode (15) is connected to an electric conductor (24), wherein the electric conductor (24) is connected to the RF generator for supplying the at least one RF ablation electrode (15) with the RF current;
wherein the hose wall (17) has a higher radial heat conductivity in the distal end section (14) in a radial direction than outside of the distal end section (14);
wherein the distal end section (14) of the flexible hose (12) is connected with a remaining portion of the flexible hose (12) via a sleeve adapter (29);
wherein the sleeve adapter (29) is electrically conductive, and the electric conductor (24) and the at least one RF ablation electrode (15) are each electrically connected to the sleeve adapter (29);
wherein the sleeve adapter (29) comprises an intermediate flange portion between the distal end section (14) of the flexible hose (12) and the remaining portion of the flexible hose (12) to which the at least one RF ablation electrode is electrically connected;
wherein the intermediate flange portion has a diameter substantially equal to a diameter of the remaining portion of the flexible hose (12) and larger than a diameter of the distal end section (14) of the flexible hose (12) such that the diameter of the intermediate flange portion is substantially equal to a diameter of the at least one RF ablation electrode.