Surgery – Diagnostic testing – Detecting muscle electrical signal
Patent
1998-03-31
2000-02-15
Kamm, William E.
Surgery
Diagnostic testing
Detecting muscle electrical signal
128903, A61B 504
Patent
active
060263210
ABSTRACT:
An apparatus for measuring potential variations in the human body, comprising: a pair of conductors, an attachment patch for attaching the conductors to the measurement sites; an amplifier that amplifies, as AC signals, the potential variations input from the conductors through connecting wires, a transmitter that transmits the amplified signals, a battery that supplies electric power to the amplifier and transmitter, a voltage-divider circuit that divides the voltage applied from the battery, and a compensator circuit that applies a voltage so divided to the amplifier as a reference voltage and, concurrently, rejects DC components input to the conductors, using the divided voltage as a reference voltage. Hence is provided a compact apparatus for measuring body signals such as myoelectric potentials, without restricting the movements of the test subject.
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"Precision, Low Power Instrumentation Amplifier", published in Mar. 1994 by Burr-Brown Corporation.
"Development of an Active Electrode with an Amplifier for Surface Electromyogram", by Suzushi Nishimura and Yutaka Tomita, Collected Monographs of Automatic Measuring Control Society, vol. 29, No. 12, pp. 1474-1476 (1993) along with an English Abstract.
Matsuo Noriyoshi
Miyata Takashi
Sawada Naomi
Tomita Yutaka
Uchida Hitoshi
Kamm William E.
Layno Carl H.
Suzuki Motor Corporation
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