Title :
Bioimpedance Monitoring of Tissue Transplants
Author :
Min, Mart ; Annus, Paul ; Land, Raul ; Paavle, Toivo ; Haldre, Eero ; Ruus, Rein
Author_Institution :
Tallinn Univ. of Technol., Tallinn
Abstract :
A device for monitoring of healing process in tissue transplants is proposed. A method based on measurement of bioimpedance of a tissue under examination at least at two different frequencies. Due to limits in available processing power and/or energy resources in wearable electronics, a sinusoidal excitation and conventional discrete Fourier based algorithms are not satisfyingly efficient. By replacing analog synchronous demodulation with its sampling equivalent and using of modified square wave excitation, an energy efficient and fast signal processing can be implemented.
Keywords :
bioelectric phenomena; biological tissues; biomedical electronics; computerised monitoring; electric impedance; electric variables measurement; medical signal processing; prosthetics; analog synchronous demodulation; bioimpedance monitoring; discrete Fourier based algorithms; energy resources; healing; modified square wave excitation; sampling equivalent; signal processing; sinusoidal excitation; tissue transplants; Bioimpedance; Biomedical monitoring; Demodulation; Digital signal processing; Electric variables measurement; Frequency; Impedance; Signal processing algorithms; Signal sampling; Voltage; electrical bioimpedance; multifrequency measurement; synchronous sampling; wearable devices;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2007. IMTC 2007. IEEE
Conference_Location :
Warsaw
Print_ISBN :
1-4244-0588-2
DOI :
10.1109/IMTC.2007.379341
