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8 Interfacing with External Devices
8.1 Introduction to Interfacing with External Devices
External devices, including Draeger Apollo Anesthesia Machine, Masimo Rainbow SET Intellivue Module Pulse
CO-Oximeter, Hamilton G5 Ventilator, Radiometer TCM4 Gas Monitor, TOF-Watch SX NMT Monitor, B Braun
Perfusor Space Infusion Pump, etc. can be connected to the monitor through the multifunctional connector.
Information (patient data, alarms, etc.) from external devices can be displayed, saved, recorded, or printed
through the monitor. If the monitor is connected with the CMS or eGateway, information from external devices
can also be transmitted to the CMS or eGateway.
8.2 Interfacing Safety Information
• The signal labels used on the patient monitor may be different from those given on the external
device.
• The alarms from external devices may be delayed before transmission to the patient monitor.
• There can be differences between the alarm priorities displayed on your monitors and the priorities
displayed on external devices.
• The alarm messages from external devices are derived from the open protocol of corresponding
external device. For more information about these alarms, please see the operator’s manual of
corresponding devices.
8.3 Differences in Displayed Values
In certain cases, there may be differences between the numerics displayed on the monitor and those on external
devices. The table below lists some situations and possible reasons.
Situation Possible Reasons
Some parameter values are displayed as invalid
values on the monitor.
The patient monitor and the external device may have different
parameter configuration or displaying range of values. If the
patient monitor displays a parameter not configured in the
external device, or a parameter value from the external device
exceeds the displaying range of the monitor, corresponding
parameter value is displayed on the monitor as an invalid value.
The monitor and external device display parameter
values with different numbers of places of decimals.
The monitor displays parameter values from the external device
based on the monitor displaying rules. Same parameter value is
displayed differently when the monitor and the external device
adopts different numbers of places of decimals.
Non-continuously measured values and
continuously measured values have the same
displaying mode in the patient monitor.
For non-continuously measured values, the monitor displays the
latest measured values until a new measurement is taken by the
external device.
Parameter values displayed on the patient monitor
and those displayed in the external device are
slightly different.
Some parameter values are converted to different units when
transmitted to the monitor. Sometimes, values from the external
device may be delayed before transmission to the patient
monitor.
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