| 摘要 |
<p>An EMG sensor (1) comprising on the surface a number of measurement electrodes (2a, b,...) which are partly imbedded in the surface of the sensor body (1a) and they are essentially levelled with said surface. The measurement electrodes (2a, 2b,...) are arranged in respective electrode configurations that mainly stretch along the long axis of the sensor body (1a). A multichannel urethral EMG sensor system, where the sensor system includes an EMG sensor (1) for detection of myoelectrical potentials, an amplifier unit (6) with a switching unit (6b) and a number of measurement channels (6c) with differential instrumentation amplifiers (6cl, .. 6cn). The switching unit (6b) is devised to connect the measurement electrodes (2) in pairs to the input of the respective differential instrumentation amplifiers (6cl, .. 6cn), so that each measurement channel performs a differential detection of the registered myoelectrical potentials. Clinically applied for instance for detection of myoelectric potentials in the urethral closing musculature and for diagnosing dysfunctions in the lower urinary tract.</p> |
