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CENTRAL MONITOR

  •  Central Monitor


  • With central monitoring, the measured physiological parameters of patient are displayed and recorded at a central station. It shows physiological parameters of all the patients at one location usually nursing station and thus assists the nursing staff.
  • Usually, the signal conditioners are mounted at the bedside and the display & alarms, etc. are located in a central station.
  • The central station monitoring equipment may use a multi-microprocessor architecture to display a smooth waveforms, alphanumerics and graphics on a single display.
  •  It generates audible and visual alarms if preset vital sign limits are exceeded.
  • It displays the patient’s vital signdata. By watching this data, the nursing staff can detect problems before they reach the alarm stage.
  • It provides a recordingof the ECG and sometimes of other parameters.
  •  The information for thecentral monitor is collected from the bedside. Each bedside cable contains as many as fifteen analog signals representing physiological parameters, which may include blood pressures, ECG, heart rate, respiration rate, pulse rate, SpO2, end-tidal CO2 and body temperature.
  • Physiological values arethen sampled and digitized at appropriate rates by a 10-bit analog-to-digital converter. ECG waveforms are sampled every two milliseconds to maintain the 0–100 Hz bandwidth. Slowly varying variables such as temperature are sampled every four seconds.
  •  The trend memory can hold patient data for 24h. It contains 6K words of CMOS RAM.

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