bili-ruler™
Noninvasive neonatal jaundice screening
- Noninvasive
- Clinically validated
- No batteries or electricity
The bili-ruler™ is an affordable, noninvasive neonatal jaundice screening tool designed to help healthcare providers identify newborns who may be at risk for elevated bilirubin levels. Using a clinically validated, six-shade color comparison scale, this simple handheld device supports early identification and timely referral for further evaluation.
Why care teams choose bili-ruler™
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01
Noninvasive jaundice screening
Uses gentle skin blanching and a six-shade color comparison scale to assess jaundice without needles, blood draws, or electronic equipment.
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02
Clinically validated accuracy
Demonstrated 90.1% sensitivity, 85.9% specificity, and 97.9% negative predictive value for detecting elevated transcutaneous bilirubin at a defined screening threshold in a study of 790 newborns.
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03
Affordable & accessible
Provides a low-cost screening alternative to expensive electronic bilirubin meters, requiring no batteries, electricity, or digital connectivity.
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04
Simple, user-friendly design
Integrated lighting indicator, risk assessment tool, and step-by-step instructions for consistent screening and interpretation.
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05
Portable
Practical screening solution for hospitals, pediatric offices, community health programs, and resource-limited settings.
bili-ruler™ in use.
bili-ruler™


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70 Tower Office Park, Woburn, MA 01801, United States
(781) 725-2460 · info@littlesparrowstech.com


