Evaluation: Nihon Kohden ZM-5xx Series Integrated-Display Telemetry System

January 13, 2016 | Evaluations & Guidance


  • Telemetry systems were developed to monitor patients who are at risk for cardiac events, but who are not acutely ill enough to warrant continuous bedside monitoring. Today, they often offer additional modalities that can be used to monitor conditions like respiratory status. Telemetry patients are often ambulatory part of the day.
  • The Nihon Kohden ZM-5xx series integrated-display telemetry system comprises:
    • Three distinct patient-worn transmitter models
      • The transmitters vary in their functionality:
        • ZM-520PA—monitors ECG and respiration
        • ZM-530PA—monitors ECG, respiration, and SpO2
        • ZM-540PA—monitors ECG, respiration, SpO2, and NIBP
      • They are powered by two or three AA single-use batteries, and include a 4.6 × 3.5 cm color LCD.
      • Each transmitter communicates wirelessly in either the 608-614 MHz, 1395-1400 MHz, or 1427-1432 MHz wireless medical telemetry service (WMTS) band.
    • The ORG-9100 multiple-patient receiver
      • The ORG-9100 receives wireless WMTS band signals from the ZM-5xx transmitters and sends the data to the CNS-6201 central station.
      • The receiver is located near the central station, or elsewhere where it provides effective coverage of telemetry transmitters in the care area.
    • The CNS-6201 central station, which analyzes, displays, and stores the telemetry data
      • A color flat-panel screen connected to the CNS-6201 can display the waveforms and numerical parameters for up to 8, 12, or 16 transmitters (patients). (With optional special software and with the addition of another screen, 24 or 32 patients can be displayed at a central station.)
      • Central stations are usually located at unit nursing stations or, for facilities that consolidate telemetry monitoring, in remote monitoring rooms (once referred to as war rooms) where a team of technicians is given responsibility for monitoring one or several central station screens.

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