Title :
Impedance microprobes for myocardial ischemia monitoring
Author :
Benvenuto, A. ; Beccai, L. ; Valvo, F. ; Menciassi, A. ; Dario, P. ; Carrozza, M.C. ; Aguiló, J. ; Ivorra, A. ; Villa, R. ; Millán, J. ; Godignon, P. ; Bausells, J. ; Errachid, A.
Author_Institution :
Scuola Superiore Sant´´Anna, Pisa, Italy
Abstract :
Describes the development, packaging and characterization of a silicon-based impedance microprobe for myocardial ischemia monitoring during open-heart surgery. The microprobe consists of four planar Pt electrodes micromachined on an isolated silicon substrate. The microprobe has been assembled on a ceramic substrate, packaged with epoxy resin and wired to the external instrumentation. Mechanical characterization of the system and in vitro biocompatibility tests of the device have been performed. Measurement instrumentation for preliminary tests has also been developed
Keywords :
bioelectric phenomena; biomedical electrodes; cardiology; electric impedance measurement; micromachining; muscle; patient monitoring; probes; silicon; Pt; Si; ceramic substrate; epoxy resin packaging; external instrumentation wiring; in vitro biocompatibility tests; measurement instrumentation; micromachined planar Pt electrodes; open-heart surgery; preliminary tests; system mechanical characterization; Assembly; Electrodes; Impedance; Instruments; Ischemic pain; Monitoring; Myocardium; Packaging; Silicon; Surgery;
Conference_Titel :
Microtechnologies in Medicine and Biology, 1st Annual International, Conference On. 2000
Conference_Location :
Lyon
Print_ISBN :
0-7803-6603-4
DOI :
10.1109/MMB.2000.893779
