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Instructions for Use
2.4 Sensor Data Transmission
WARNING: Removing the wearable device from WiFi range will prevent transmission of
signal data and thus no vital signs nor alarm signals will be generated for the patient
CAUTION: If the device is removed from WiFi range, it will store signal data for a
maximum of 17.5 hours. After 17.5 hours, no further signal data will be stored.
The wearable device transmits physiologic signal data over standard IEEE 802.11 g/b/n
2.4GhZ WiFi to the Current Health software platform. Vital signs are computed by the
software platform, rather than on the wearable device.
The wearable device will continuously sample the pulse oximeter between green/infra-red
and red/infra-red.
If the wearable device is removed from WiFi network range, it will store sensor data
internally for a maximum of 17.5 hours. After 17.5 hours, no further sensor data will be
stored. When a WiFi network connection becomes available, the wearable device will
transmit any internally stored data first, before transmitting real-time data.
It is important to note that while the wearable device is out of WiFi range, no vital signs or
alarms will be generated.
Note that as the wearable device transmits every 30 seconds, there is a short period of
time between when sensor data is collected and it is processed by the platform into vital
signs. This has an impact on the generation of alarms, as discussed in section 7, and on the
time until vital signs are updated, discussed in the individual vital sign sections.
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