Two-Channel Bioimpedance Monitor for Impedance Cardiography

Author

Vondra, Vlastimil ; Halamek, Josef ; Viscor, Ivo ; Jurak, Pavel

Author_Institution

Inst. of Sci. Instrum., Acad. of Sci., Brno

fYear

2006

fDate

Aug. 30 2006-Sept. 3 2006

Firstpage

6061

Lastpage

6063

Abstract

In this paper we introduce our conception of a two-channel bioimpedance monitor for the impedance cardiography. We describe the design of a homemade device which is based on a direct digital synthesizer and a digital down converter. This solution enables us to obtain a high-quality bioimpedance signal, which can be used for computing the cardiac output beat per beat. It further enables us to analyze impedance phase changes beat per beat. Our device allows simultaneous measuring of complex impedance in two arbitrary directions on human/animal body without any interference between channels. The setting of the main parameters of the measurement like the amplitude and the frequency of the measurement current depends on the user

Keywords

bioelectric potentials; biomedical equipment; biomedical measurement; direct digital synthesis; electrocardiography; DDS; bioimpedance measurement; digital down converter; direct digital synthesizer; homemade device design; impedance cardiography; two-channel bioimpedance monitor; Animals; Bioimpedance; Cardiography; Current measurement; Frequency measurement; Humans; Impedance measurement; Interference; Monitoring; Synthesizers;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE

Conference_Location

New York, NY

ISSN

1557-170X

Print_ISBN

1-4244-0032-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2006.260011

Filename

4463190