Vein Finder in Preterm Infants: Infrared Device Cuts Cannulation Time to Under 9 Seconds

Peripheral intravenous catheterization in preterm infants is one of the most delicate procedures in neonatal care. Vessels are measured in fractions of a millimeter, skin is fragile, and each failed attempt increases the risk of pain, infection, and treatment delay.

A randomized controlled trial conducted in the neonatal intensive care unit of a hospital in Turkey evaluated whether a vein finder device could improve cannulation outcomes in this vulnerable population.

The device
A vein finder device using infrared technology for real-time vein visualization, compared with a transillumination device and standard palpation.

The study design
90 preterm infants were randomly assigned to three groups: infrared vein finder device (n=30), transilluminator (n=30), and standard method (n=30). The study was conducted between June 2016 and April 2017.

The results

• Time to successful cannulation: 8.70 ± 2.56 seconds with the infrared device, vs. 45.27 ± 30.83 seconds with transillumination and 17.30 ± 8.40 seconds with standard method (P ≤ .001)

• First-attempt success: significantly higher in both device groups compared with standard method (P ≤ .05)

• Catheter dwell time: significantly longer in the infrared device group (P ≤ .05)

• Procedure-related pain: significantly lower in the infrared device group compared with transillumination (P ≤ .001)

Why it matters
This trial demonstrates that a vein finder device can deliver dramatic improvements in the most fragile patient population — preterm infants in the NICU. The infrared device reduced cannulation time to under 9 seconds, roughly one-fifth of the time required by transillumination and half that of standard palpation. For neonatal units, where every second of procedural stress matters for a premature infant’s stability, this data supports vein visualization as a clinical priority rather than an optional tool.

The study also reinforces a pattern seen across multiple trials: vein finder devices deliver the greatest benefit when standard methods are least reliable. Preterm infants represent one of the most difficult-access populations in all of clinical medicine, and this trial shows the technology can make a measurable difference.