Portable device for monitoring electrocardiographic signals and indices of blood flow
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United States of America Patent
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Mar 1, 2011
Grant Date -
Dec 1, 2005
app pub date -
May 10, 2005
filing date -
May 10, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
Embodiments of the present invention are directed to a physiological monitoring device which is configured to record signals that reflect blood flow and/or blood pressure, and which may also record ECG signals. In one embodiment, a portable monitoring device comprises a plurality of impedance electrodes configured to be coupled to a patient's body and to generate an AC current with an electrical field to detect local electrical impedance of a portion of the patient's body encompassed by the electrical field, the local electrical impedance being a surrogate measure of local blood flow of the portion of the patient's body. At least a portion of the portable monitoring device is configured to be insertable subcutaneously into the patient's body.
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