US 12,133,733 B2
Production method for noble metal electrodes
Andreas Liess, Hanau (DE); Oliver Keitel, Hanau (DE); and Robert Sievi, Hanau (DE)
Assigned to Heraeus Deutschland GmbH & Co. KG, Hanau (DE)
Filed by Heraeus Deutschland GmbH & Co. KG, Hanau (DE)
Filed on Nov. 5, 2021, as Appl. No. 17/520,149.
Claims priority of application No. 102020214076.6 (DE), filed on Nov. 10, 2020.
Prior Publication US 2022/0142543 A1, May 12, 2022
Int. Cl. A61B 5/263 (2021.01); C01G 15/00 (2006.01); C23C 18/12 (2006.01)
CPC A61B 5/263 (2021.01) [C01G 15/00 (2013.01); C23C 18/1216 (2013.01); A61B 2562/125 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for producing a medical electrode coated with iridium oxide, comprising the following steps:
(i) providing a medical electrode having an electrode surface;
(ii) applying a liquid composition to the electrode surface, the composition comprising an organic iridium complex compound;
(iii) heating the composition in an oxygen-containing atmosphere, thereby forming an iridium oxide layer on the electrode surface, and
wherein the liquid composition comprises an iridium complex comprising diolefin and C6-C18 monocarboxylate ligands of type [LIr[O(CO)R1]]m, where L denotes a compound acting as a diolefin ligand, where —O(CO)R1 denotes a non-aromatic C6-C18 monocarboxylic acid radical, and where m is an integer ≥2.