Surgery – Diagnostic testing – Measuring electrical impedance or conductance of body portion
Reexamination Certificate
2007-04-10
2007-04-10
Hindenburg, Max F. (Department: 3736)
Surgery
Diagnostic testing
Measuring electrical impedance or conductance of body portion
Reexamination Certificate
active
10380241
ABSTRACT:
A bioelectrical impedance apparatus and method includes a pair of current-carrying electrodes and a pair of measuring electrodes are rectilinearly arranged on a living body surface so that the measuring electrode having a smaller area than the other measuring electrode is placed very close to the current-carrying electrode having a smaller area than the other current-carrying electrode. The potential of the measuring electrode is substantially equal to the potential at a contact position of the current-carrying electrode, and the potential of the measuring electrode is substantially equal to the potential at a deepest position of a vertical part inside the living body. When a constant current flows between the current-carrying electrodes, a voltage between the measuring electrodes is measured by a detector so that a bioelectrical impedance of the vertical part may be calculated from a current, and a potential difference between upper and lower ends of the vertical part.
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Apanius Michael
Hindenburg Max F.
Oliff & Berridg,e PLC
Physion Co., Ltd.
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