Title :
Modification of pulse wave signals in electrical bioimpedance analyzers for implantable medical devices
Author :
Min, M. ; Kink, A. ; Land, R. ; Parve, T. ; Rätsep, I.
Author_Institution :
Dept. of Electron., Tallinn Univ. of Technol., Estonia
Abstract :
The problems of application of pulse wave signals in electrical bioimpedance analyzers foreseen for using in implantable medical devices as diagnostical means are discussed in this paper. The main problem arises at measurement of phasor parameters by the aid of rectangular pulse wave signals. The specific measurement errors appear due to presence of higher harmonics in the spectra of pulse waveforms. These errors are discussed in two cases, in the case of full cycle rectangular waveform, and in the case of using the shortened pulses introduced specially for reduction of errors.
Keywords :
bioelectric phenomena; medical signal processing; patient diagnosis; prosthetics; diagnostics; electrical bioimpedance analyzers; full cycle rectangular waveform; implantable medical devices; measurement errors; phasor parameters; pulse wave signal modification; shortened pulses; Bioimpedance; Electric resistance; Equivalent circuits; Immune system; Implantable biomedical devices; Pulse circuits; Pulse measurements; Signal analysis; Trigger circuits; Voltage; Electrical bioimpedance analyzer; implantable medical devices; pulse wave signals; signal processing;
Conference_Titel :
Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8439-3
DOI :
10.1109/IEMBS.2004.1403658
