AI Lab
Local RAG
Maternal Health
Safety Guardrails
ChromaDB · sentence-transformers
MamaCare AI — Maternal Health Assistant
MamaCare AI helps pregnant mothers navigate pregnancy with warm, clear, and stage-aware guidance. It answers common questions across the maternal journey — symptoms, nutrition, fetal movement, antenatal care, birth, and postpartum recovery — while staying grounded in a curated knowledge base and protected by deterministic safety guardrails that escalate emergencies and refuse unsafe medical advice.
Problem Statement
Pregnant mothers often need quick, clear, reassuring answers about symptoms, nutrition, fetal movement, warning signs, and birth preparation — frequently outside clinic hours and in low-connectivity settings. General chatbots are risky here: they can hallucinate, give unsafe medication advice, or miss an emergency that needs urgent care.
Maternal health is exactly the domain where a warm answer must still be safe and evidence-grounded. The hard part is not fluent text — it is refusing to guess, surfacing danger signs, and escalating emergencies reliably.
The solution: A local RAG assistant that answers only from curated maternal-health cards, prioritises high-trust FAQ matches, returns citations, and runs safety guardrails outside the retrieval system to catch emergencies, block dosage advice, protect privacy, and decline out-of-scope questions.
How It Works
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1. Safety Guardrails First
Before any answer, deterministic rules scan the question for emergency symptoms, self-harm, medication/dosage requests, privacy risks, and out-of-scope topics — so safety is never left to the language layer.
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2. Trimester Awareness
The assistant infers pregnancy stage from the question (or an explicit selection) and prioritises stage-relevant guidance so a first-trimester mother and a third-trimester mother get appropriate answers.
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3. Curated FAQ Fast Path
A lexical FAQ matcher answers must-answer maternal questions first, protecting critical questions from being missed by semantic search alone.
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4. Grounded Retrieval & Citations
If the fast path is weak, semantic retrieval (sentence-transformers + ChromaDB in the full app) finds the closest curated cards. Answers are formatted warmly, with "when to seek care" notes and a clear citation to the source card.
Not a diagnostic tool. MamaCare AI provides general, educational maternal guidance. It does not diagnose, does not prescribe medication doses, and does not replace a qualified healthcare professional. In an emergency, mothers are told to seek urgent care immediately.