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PreemieTest
Diagnostic technology for assessing neonatal maturity and supporting clinical decisions after birth.
Meet the technology
A skin reading. More information for care.
PreemieTest takes a non-invasive optical reading of newborn skin and converts the collected signal into clinical information on neonatal maturity.
The technology provides scores that complement the clinical examination and support physicians in assessment and decision-making after birth.
The clinical challenge
The first decisions call for a more complete picture of neonatal maturity.
Gestational age is an important reference, but it does not, on its own, describe the full maturity of a newborn or their clinical risk.
When prenatal data are incomplete or uncertain, or when neonatal risk needs to be assessed quickly, additional information on maturity and respiratory adaptation can support clinical assessment in the first hours of life.
Preterm birth
< 37 weeks
Completed weeks of pregnancy
The optical principle
What light reveals about skin maturation
Skin changes as a baby develops. So does the way it interacts with light.
From skin response to clinical information
During pregnancy, skin develops and its structural and optical properties change. Part of the light emitted by the probe interacts with the tissue and returns to the sensor.
PreemieTest measures this optical response. Processing relates the collected signal to neonatal maturity to support the estimation of gestational age and lung maturity. This is neither a photograph nor a measurement of the baby’s weight.
How assessment works
A simple sequence carried out by professionals in accordance with the instructions for use.
Skin contact
The optical head is placed against the newborn’s skin to take a non-invasive reading.
Light-based reading
The technology analyzes the skin’s optical response and collects information associated with its maturation.
Signal processing
The collected signal is processed by PreemieTest models to generate the different clinical indicators.
Clinical information
Scores and probabilities are presented to the healthcare professional to complement the newborn’s assessment.
ASSESSMENT RESULTS
What PreemieTest provides
The optical skin reading provides clinical information on neonatal maturity and respiratory risk, complementing the newborn’s assessment.
Neonatal maturity
Indicators that help characterize newborn maturity, including the Skin Maturity Score and estimated gestational age.
Lung maturity
Diagnosis of lung maturity, with probabilities of requiring ventilatory support, respiratory distress syndrome and admission to a NICU.
Evidence to explore and assess
Proof of concept
2017 · PLOS ONE
Skin reflection and gestational age prediction
A cross-sectional study exploring newborn skin optical properties as an approach to gestational age prediction.
Clinical validation
2022 · Journal of Medical Internet Research
Device validation for gestational age prediction
Clinical validation of a newborn skin maturity assessment device. Read the article for its methods, results and limitations.
Protocol · preprint
2026 · Research Square
APPLE: evaluation across birth settings
Multicenter cohort protocol on postnatal assessment with PreemieTest. A preprint without journal peer review; it does not report final results.
FOR YOUR PRACTICE
Purchase PreemieTest
PreemieTest is available for direct purchase. We also provide tailored commercial proposals for hospitals, distributors and volume purchases.
Public procurement documentation
Reference technical specification to help customers, resellers and institutions prepare procurement documents for Brazil.
CATMAT note: this item is not yet listed in CATMAT on the Brazilian Federal Government’s Compras.gov.br portal. The first procuring buyer must arrange for its inclusion.
Bring science closer to care.
Explore PreemieTest in neonatal assessment. Talk to our team about the technology and the possibilities for your institution.