Study of electrochemical properties of thin film materials obtained using plasma technologies for production of electrodes for pacemakers

19th Conference on Plasma Surface Interactions

Obrezkov, O.I.^1 ; Vinogradov, V.P.^1 ; Krauz, V.I.^1 ; Mozgrin, D.V.^2 ; Guseva, I.A.^3 ; Andreev, E.S.^4 ; Zverev, A.A.^4 ; Starostin, A.L.^5

NRC Kurchatov Institute, 1 Kurchatov Sq., Moscow

123098, Russia^1

National Research, Nuclear University, MEPhI (Moscow Engineering Physics Institute), 31 Kashirskoe highway, Moscow

115409, Russia^2

INNOVATECHPROM Ltd, 10 Ryazanskiy av., Moscow

109428, Russia^3

NPP Bulat Ltd., 18 Komitetsky les st., Korolev, Moscow region

141067, Russia^4

Cardioelectronics Ltd, 2 Zavodskaya st., Klimovsk, Moscow region

142181, Russia^5

关键词: Electron beam evaporation;    Magnetron discharges;    Medical practice;    Pacemaker electrodes;    Plasma technology;    Stimulation thresholds;    Thin film material;    Ti ion implantation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/748/1/012018/pdf
DOI  :  10.1088/1742-6596/748/1/012018

来源: IOP

【 摘 要 】

Studies of thin film materials (TFM) as coatings of tips of pacemaker electrodes implanted into the human heart have been performed. TFM coatings were deposited in vacuum by arc magnetron discharge plasma, by pulsed discharge of "Plasma Focus", and by electron beam evaporation. Simulation of electric charge transfer to the heart in physiological blood- imitator solution and determination of electrochemical properties of the coatings were carried out. TFM of highly developed surface of contact with tissue was produced by argon plasma spraying of titanium powder with subsequent coating by titanium nitride in vacuum arc assisted by Ti ion implantation. The TFM coatings of pacemaker electrode have passed necessary clinical tests and were used in medical practice. They provide low voltage myocardium stimulation thresholds within the required operating time.