Device validation study of the MyLee was published on the peer-reviewed scientific journal BMC Pregnancy and Childbirth, in special collection on 'Digital tools for maternal health and wellness'.
Title: handheld milk conductivity sensing device (Mylee) for measuring secretory activation progress in lactating women: a device validation study.
This study evaluated the validity and reliability of MyLee, a handheld milk-sensing device designed to measure lactation progress through milk conductivity. The study involved rigorous laboratory testing and analysis of human milk samples to establish the device's accuracy in detecting secretory activation and milk maturation stages.
Key findings include:
High Accuracy and Reproducibility: The device achieved <5% error in conductivity measurements and demonstrated excellent consistency (CV95%<5%).
Strong Correlation with Biomarkers: MyLee’s milk maturation (MM%) score showed a near-perfect correlation (R² > 0.9) with laboratory measurements of milk sodium levels ([Na+]), a recognized biomarker of lactation stages.
Predictive Capability: The device effectively identified secretory activation status using sodium threshold values in human milk.
The study concludes that MyLee device provides a reliable and valid method for tracking lactation progress and milk maturation in real time, and comparable to laboratory research based methods.
Read the full Research manuscript
Haramati, S., Firsow, A., Navarro, D.A. et al. A handheld milk conductivity sensing device (Mylee) for measuring secretory activation progress in lactating women: a device validation study. BMC Pregnancy Childbirth 25, 60 (2025). https://doi.org/10.1186/s12884-025-07141-x
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