Investigation of the water window on various implantable pacing leads using a home-built computer controlled potentiostat

CHED 190

Evan W. Thursby, ewthursb@bloomu.edu and Mark A. Tapsak, mtapsak@bloomu.edu. Department of Chemistry, Bloomsburg University of Pennsylvania, Bloomsburg University, 400 East Second Street, Bloomsburg, PA 17815
A home-built multi-channel potentiostat based on software and hardware products from National Instruments (Austin, TX) was used to determine the water window of various implantable pacing leads. The low cost potentiostat was designed to function on Intel-based computers (IBM PC) as well as the MacIntosh platforms. LabVIEW software was used to provide a user interface and control the all the hardware. A multifunction data acquisition card (MIO-16E-2) is used to interface to the custom potentiostat circuitry. As an enabling example for the potentiostat, cyclic voltamograms were obtained for both ring and tip pacing electrodes at 37°C in phosphate buffered saline.