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

fYear

2000

fDate

2000

Firstpage

234

Lastpage

238

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microtechnologies in Medicine and Biology, 1st Annual International, Conference On. 2000

Conference_Location

Lyon

Print_ISBN

0-7803-6603-4

Type

conf

DOI

10.1109/MMB.2000.893779

Filename

893779