Design of a Wireless Pulse Oximeter using a Mesh ZigBee Sensor Network

This work describes a prototype to convert a conventional pulse oximeter into a wireless device. Samples have been taken from a commercial Nellcor DS-100A probe using an FPGA. This programmable device is integrated with an XBee wireless modem; using ZigBee protocol, data is sent through the wireless network to a central server. The system generates alarms to the medical staff when vital signals are critical. Data can be saved in a database allowing the review of monitored data furthermore, with these data, future research on medicine can be started.

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