Surgery – Diagnostic testing – Measuring electrical impedance or conductance of body portion
Reexamination Certificate
2011-03-01
2011-03-01
Hoekstra, Jeffrey G (Department: 3736)
Surgery
Diagnostic testing
Measuring electrical impedance or conductance of body portion
C600S481000, C600S504000, C600S506000
Reexamination Certificate
active
07899526
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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Benditt David G.
Lurie Keith G.
Patterson Robert F.
Fish & Richardson P.C.
Hoekstra Jeffrey G
Regents of the University of Minnesota
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