Trade name: Sunchrony-Cello Series Hydrocephalus Valve. Technical name: Valve for Hydrocephalus. ANVISA registration number: 10175060021. Risk class: IV. Affected model: Dulto Low, Adult Adult, Adult High, Pediatric Low, Pediatric Average, Neonatal Average, Neonatal Low. Affected serial numbers: AUTO089833, AUTO089753, AUTO089691, AUTO089689, AUTO089789, AUTO089748, AUTO089839, AUTO089839, AUTO089838, AUTO089485, AUTO089521, AUTO089571, AUTO089601, AUTO089633, AUTO089693, AUTO089693, AUTO089834, AUTO089844, AUTO089692, AUTO089755.