To facilitate quicker detection of symptoms of cardiovascular and respiratory disorders,
the use of smaller portable wireless sensors which consume less power is an essential
requirement. Wireless pulse oximeter are convenient devices which aid to remotely
monitor a patient’s heart rate and blood oxygen saturation (SpO ), The result of this
studyshows a developed portable, low cost device which can be used to measure the
heart rate, and SpO of an individual. To this end, a small pulse oximeter was
developed; which used an elastic transmissive mode finger probe to measure the
heart rate and SpO . The device could successfully measure these vital signs and
display on a LCD screen. The readings taken from individual for a period of one
minute shows average heart rate of 75.6 bpm at zero offset and the average SpO
readings derived from the device was 98.7% at zero offset. The model designed is
also rechargeable to make it more sustainable for use in rural areas where there is
insufficient power supply. The prototype pulse oximeter designed is portable,
consumes less power and capable of sending processed measured data to an online
database via a WLAN network thereby satisfying the criteria for sustainable
telemedicine.This device is therefore recommended for use in local hospitals and
remote medical centre to aid easier detection and prevention of critical medical
disease