K-numberK252433
Device nameSonio Detect (v3)
ApplicantSonio
Product codeIYN
Device classClass II
Decision dateMar 16, 2026
DecisionSubstantially Equivalent
Regulation892.1550
AI Summary extracted from FDA summary PDF · never regenerated
Intended use

Sonio Detect v3 is a software-as-a-service (SaaS) solution that analyzes fetal ultrasound images and clips using machine learning to automatically detect views, identify anatomical structures within those views, and verify quality criteria and characteristics. It is intended for use as a concurrent reading aid during acquisition and interpretation of fetal ultrasound examinations across all three trimesters (11 to 41 weeks gestation), assisting healthcare professionals (sonographers, OB/GYN specialists, and fetal surgeons) in ensuring examination completeness and protocol compliance.

Technological characteristics

Sonio Detect v3 differs from predicate Sonio Detect v2 in two main ways: (1) v3 automatically localizes views and anatomical structures by outputting bounding boxes, whereas v2 does not; and (2) v3 uses Artificial Intelligence alone, while v2 also included lecture of biometrics and colorimetry for 3D and Doppler. Both are cloud-based and stand-alone software compatible with ultrasound systems from GE Medical, Samsung, Canon, and Philips.

Test standards cited

Not stated in this summary.

Substantial equivalence argument

Sonio Detect v3 is substantially equivalent to predicate Sonio Detect v2 (K240406) because both devices share the same intended users, intended use, and clinical applications (concurrent reading aid for fetal ultrasound). The addition of bounding box localization and simplified algorithm methodology do not raise new safety or effectiveness questions. Verification, validation, and bench testing on 22,496 independent fetal ultrasound images demonstrated strong performance (sensitivity 0.81–1.0, specificity 0.80–1.0 across all functions), with validation across ultrasound manufacturers, BMI, maternal age, image quality, geography, gestational age, and race/ethnicity subgroups.

Extracted by AI from the official FDA summary PDF →
Source

View the full FDA submission: accessdata.fda.gov

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