Stimulation Electrodes for Pacemaker Applications : Electrochemistry of bioelectrodes

ISBN-13: 9783639108149 / Angielski / Miękka / 2009 / 156 str.

Anna Norlin Weissenrieder

Opis

People suffering from certain types of arrhythmia may benefit from the implantation of a cardiac pacemaker. The electrical stimulation pulses are transferred from the pacemaker to the heart via an electrode which is implanted into the cardiac tissue. To design functional pacemaker electrodes it is essential to understand and control the charge transferring processes on the electrode/tissue interface. Bioelectrodes which operates outside its inherent physical limits may degrade by electrochemically driven processes (corrosion) or produce chemical byproducts which may be harmful to the patient. As the electrode size is reduced to meet market demand the design strategies for high performance stimulation and sensing bioelectrodes needs to be revisited and the electrode/tissue interface must be characterized to ensure safe and optimal electrode performance during its operational lifespan.In this thesis various electrochemical and surface analytical techniques were used to investigate the performance of different electrode materials and surface textures.

O autorze

Anna Norlin Weissenrieder holds a Ph. D. in
Materials Science and a M.Sc. in Chemical
Engineering from the Royal Institute of Technology, Stockholm.
She has several years experience from medical
device and battery industry. Her expertize is in
electrostimulation, materials characterization, corrosion, and
biocompatibility.