Aspect A-2000

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Aspect A-2000 Bis Monitor Features

The Aspect A-2000 BIS is a bispectral index anesthesia monitor. The BIS system monitors the sedation level of the patient based on the acquisition and the processing of EEG Signals. The EEG is read by the bispectral index monitor, processed, and produces a number that is called the bispectral index – this is connected to the patient’s level of sedation. The Aspect A-2000 BIS is used to monitor the cerebral electrical activity of a patient.

  • Reduce the sedation drug use
  • 35%-55% fast wake-ups and extubations
  • Improve the quality of post anesthesia recovery
  • Reduce recovery time
  • Can enhance the performance during cardiac or other other deep anesthetic procedures

Aspect A-2000 BIS Monitor Specifications

Monitor Dimensions

  • Height: 7 in (17.5 cm)
  • Width: 7 in (17.5 cm)
  • Depth: 4 in (10 cm)
  • Weight: 3.1 lbs (1.4 kg)

Digital Signal Converter Dimensions

  • Height: 1 in (2.5 cm)
  • Width: 2.6 in (6.6cm)
  • Depth:4.25 in (10.8 cm)
  • Weight: 4.7 oz ( 0.134 kg) including integral cable


  • Power requirments: 100-240 VAC, 50-60 Hz, 1 ampere max
  • Battery Backup: 20 minutes at full operation

EEG Specifications

  • Epoch Duration: 2 seconds
  • Artifact Rejection: Automatic
  • EEG Scales: 25 µV/div (+/- 1 mV Full Scale)
  • EEG Sweep Speeds: 25 mm/sec
  • Computed Parameters: Bispectral Index, 95% Spectral Edge Frequency, Suppression Ratio, EMG and Signal Quality Index
  • User-defined Displays: TREND, DSA and real-time EEG waveforms
  • Update Rate: 1 second for BIS Index, 10 seconds for Trend/DSA
  • Event Markers: User selected
  • Alarms: Auditory and visual, user adjustable limits
  • Filters: ON (2 – 70 Hz with notch) or OFF (.25 – 100 Hz) Note: Filter setting does not effect computed parameters
  • Mode: Sensor automatically selects mode

Digital Signal Converter Specifications

  • Analog to Digital Converter: Noise-shaped sigma-delta
  • Sampling Rate: 16,384 samples/second
  • Resolution: 16 Bits at 256 samples/second
  • Input Impedance: 50 Mohms minimum
  • Noise: < 0.3 mV RMS (2.0 mV peak-to-peak); 0.25 Hz to 50 Hz
  • Common Mode Rejection: 110 dB at 60 Hz to earth (Isolation mode) ground
  • Bandwidth: 0.16 – 800 Hz

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