Title :
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
fDate :
Aug. 30 2006-Sept. 3 2006
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;
Conference_Titel :
Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE
Conference_Location :
New York, NY
Print_ISBN :
1-4244-0032-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2006.260011
