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Sensors 2013, 13(12), 16882-16893; doi:10.3390/s131216882

Design and Evaluation of a Low-Cost Smartphone Pulse Oximeter

1,* , 1
, 1
 and 2
Received: 15 October 2013 / Revised: 16 November 2013 / Accepted: 2 December 2013 / Published: 6 December 2013
(This article belongs to the collection Sensors for Globalized Healthy Living and Wellbeing)
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Abstract: Infectious diseases such as pneumonia take the lives of millions of children in low- and middle-income countries every year. Many of these deaths could be prevented with the availability of robust and low-cost diagnostic tools using integrated sensor technology. Pulse oximetry in particular, offers a unique non-invasive and specific test for an increase in the severity of many infectious diseases such as pneumonia. If pulse oximetry could be delivered on widely available mobile phones, it could become a compelling solution to global health challenges. Many lives could be saved if this technology was disseminated effectively in the affected regions of the world to rescue patients from the fatal consequences of these infectious diseases. We describe the implementation of such an oximeter that interfaces a conventional clinical oximeter finger sensor with a smartphone through the headset jack audio interface, and present a simulator-based systematic verification system to be used for automated validation of the sensor interface on different smartphones and media players. An excellent agreement was found between the simulator and the audio oximeter for both oxygen saturation and heart rate over a wide range of optical transmission levels on 4th and 5th generations of the iPod TouchTM and iPhoneTM devices.
Keywords: pulse oximetry; mHealth; telemonitoring; pneumonia diagnostics pulse oximetry; mHealth; telemonitoring; pneumonia diagnostics
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Petersen, C.L.; Chen, T.P.; Ansermino, J.M.; Dumont, G.A. Design and Evaluation of a Low-Cost Smartphone Pulse Oximeter. Sensors 2013, 13, 16882-16893.

AMA Style

Petersen CL, Chen TP, Ansermino JM, Dumont GA. Design and Evaluation of a Low-Cost Smartphone Pulse Oximeter. Sensors. 2013; 13(12):16882-16893.

Chicago/Turabian Style

Petersen, Christian L.; Chen, Tso P.; Ansermino, J. M.; Dumont, Guy A. 2013. "Design and Evaluation of a Low-Cost Smartphone Pulse Oximeter." Sensors 13, no. 12: 16882-16893.

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