MEDICAL NEURO-SYMBOLIC ENGINE

MNSE The clinical AI that thinks like a specialist — and costs like a calculator.

Large language models are brilliant generalists that guess with probability. MNSE doesn't guess. It's a purpose-built neuro-symbolic engine for medicine — a small neural compiler fused with a deterministic symbolic resolver grounded in real drug, ICD-10, LOINC and SNOMED knowledge. The result: clinical-grade extraction and correction that is auditable, hallucination-free in scope, runs on a single CPU, and costs $0 per call.

98.1% Certified on a frozen 10,000-case benchmark
$0 Cost per call — zero tokens, zero API spend
174,783 Indian drug brands in the live formulary
~120ms Full field extraction — on CPU, no GPU
A DIFFERENT SPECIES OF AI

This Is Not a Language Model.

For a narrow, high-stakes domain like medicine, a 175-billion-parameter generalist is the wrong tool. MNSE is the right one.

cloud A General-Purpose LLM

Trained on the whole internet to do everything, owned by no one

  • help_outlineProbabilistic — can hallucinate a drug that was never said and was never prescribed.
  • help_outlineBlack box — no trace of why a field was filled; hard to audit or certify.
  • help_outlineBilled per token, every single call — costs scale with every consultation forever.
  • help_outlineNeeds GPUs and a network round-trip; PHI leaves your building.
  • help_outlineNon-deterministic — the same input can return a different answer tomorrow.
  • help_outlineRetraining for your domain costs millions and weeks of GPU time.
VS
memory MNSE

A small neural compiler fused with a symbolic medical resolver

  • verifiedCannot recommend a drug that isn't in the formulary. Every output snaps to a known clinical concept.
  • verifiedGlass box — every result traces to a fired rule. Auditable by construction.
  • verified$0 per call, zero tokens. Tracked explicitly as a free local provider in the usage dashboard.
  • verifiedRuns on a single CPU thread — no GPU, no network, PHI stays inside the hospital.
  • verifiedDeterministic — the same input always returns the same, defensible answer.
  • verifiedTrains in ~11 minutes on one CPU from small, domain-specific data — not the whole internet.

MNSE is engineered to complement generative AI, not erase it. It owns the deterministic, repetitive, high-volume work (extraction, term-correction, drug safety) — and hands free-text prose generation to an LLM only where genuine language generation is required. Best of both worlds: the LLM writes; MNSE verifies.

HOW IT WORKS

Neural Where It Helps. Symbolic Where It Matters.

Messy speech goes in. Structured, formulary-grounded clinical facts come out — through three deterministic layers.

Layer 1 · Neural

The Concept Compiler

A tiny CPU-only encoder turns noisy transcripts and STT garble into discrete concept candidates with confidence scores — classifying every span as drug, lab, diagnosis, vital, frequency, schedule or other. It hits 99.91% validation accuracy across 88,810 examples, yet featurizes and runs in ~42 ms.

char-n-gram encoder 7-class softmax calibrated verifier no GPU required
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Layer 2 · Symbolic

The Resolver Substrates

Concept candidates are snapped to canonical medical truth by a battery of deterministic substrates — bitmap algebra, lexicons and reference-range engines resolving in ~125 microseconds. This layer physically cannot emit a drug outside the formulary, a lab outside LOINC, or a diagnosis outside ICD-10. It either answers with proof, or returns nothing.

drug · 174,783 brands ICD-10 dx LOINC labs SNOMED · 90k+ concepts vitals · frequency · schedule drug-safety bitmaps
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Layer 3 · Render

The Structured Output

Verified facts are assembled into 16 clinical fields — diagnosis, complaints, medications with typed dosing, investigations, follow-up and more — populated verbatim and traceably. Where free-text prose is genuinely needed, a generative model is fed only this clean, structured, PII-safe input. The doctor stays in control of the narrative.

16 structured fields typed drug entries PII-safe fully auditable
CERTIFIED PERFORMANCE

Numbers, Not Vibes.

Every figure below is measured against frozen, version-locked benchmarks in the production repository.

Overall accuracy frozen 10,000-case drug + diagnosis benchmark 98.11%

9,811 of 10,000 cases passed at the latest deterministic-loop checkpoint.

Diagnosis recognition 3,000 dx cases 99.87%
Drug correction 7,000 adversarial brand cases 97.36%

Phonetic + perturbation + fuzzy matching across 174,783 indexed Indian brands.

Neural concept encoder validation set, n = 88,810 99.91%
AIDB adversarial defender suite locked attack corpus 100%

686 / 686 engineered adversarial drug attacks recovered.

Real-consultation field agreement 441 live consultations · structured parser 17.6% → 44.7%

Switching extraction to MNSE lifted overall field agreement 2.5× — diagnosis 37→76, drugs 2→64, examination 1→54.

THE ECONOMICS OF DETERMINISM

Every Automation MNSE Owns Costs $0.

These are high-frequency operations that ran on a metered LLM. MNSE took them over — at a marginal cost of zero.

≈ 600×
cheaper per request than a GPU-served LLM — CPU symbolic resolution vs. metered token generation
spellcheckMedical term & drug correction
was: per-token LLM call
$0 / call

Now fully MNSE-authoritative in production. The certified 98.1% engine corrects every transcript before the doctor ever sees it.

dynamic_formTranscript field extraction
was: per-token LLM call
$0 / call

MNSE skips the LLM extraction call entirely and parses 16 structured fields itself — live on production today.

descriptionDischarge-PDF drug repair
was: per-token LLM call
$0 / call

Repairs every drug brand in OCR'd discharge summaries before and after prose generation — at no marginal cost.

savingsDrug-correction line item
was: ~⅓ of the AI bill
~33% bill removed

Drug correction alone accounted for roughly a third of the generative-AI spend. MNSE eliminated it.

Cost is tracked in the live usage dashboard, where MNSE is recorded as a $0 / zero-token provider distinct from metered LLM calls. The ~600× and ~33% figures reflect engineering measurements and deployment accounting; exact savings scale with your call volume.

THE SYMBOLIC BRAIN

A Substrate for Every Clinical Concept.

Each substrate is a specialised, deterministic resolver — composable, testable, and grounded in curated medical knowledge.

medication

Drug Resolver

174,783-brand formulary, phonetic + fuzzy matching, hallucination guardrail.

health_and_safety

Safety Substrate

Pregnancy, renal, hepatic & drug–drug interaction bitmaps from RxNorm / openFDA.

local_pharmacy

NLEM Overlay

NLEM-2022 essential medicines + India-specific contraindication rules.

coronavirus

Diagnosis Resolver

ICD-10 resolution with a fuzzy span scanner over a curated clinical seed.

science

Lab Substrate

LOINC analyte resolution, reference ranges, and HIGH / LOW / CRITICAL flags.

monitor_heart

Vitals Substrate

BP, pulse, SpO₂, temperature, weight, RR, RBS/FBS with clinical flagging.

schedule

Schedule Substrate

Natural-date parsing + OB/GYN procedure lexicon → appointment fields.

repeat

Frequency Substrate

BID / TID / OD / PRN / HS dosing, duration, route and meal relation.

account_tree

SNOMED Recognizer

90k+ concept hierarchy — disorder, finding, procedure & observable buckets.

blur_on

Embedding Fallback

Char-n-gram TF-IDF tier for misspellings & STT garble — under 1 ms.

LIVE IN PRODUCTION

From Spoken Word to Signed Record.

MNSE runs the deterministic spine of a real, full-scale clinical platform — every day.

mic

Capture

Doctor speaks naturally; transcript streams in.

spellcheck

Correct

MNSE repairs medical terms & drug brands at $0.

MNSE
dynamic_form

Extract

16 structured fields parsed — no LLM call.

MNSE
verified_user

Verify

Every drug snapped to the formulary & safety-checked.

MNSE
assignment_turned_in

Finalise

Clean, auditable record — ready for the doctor to sign.

0 % Benchmark Accuracy
$0 Cost Per Call
0 + Symbolic Substrates
0 ms CPU Extraction

License the Engine. Own the Margin.

MNSE is available as a standalone, embeddable clinical-intelligence engine — drop it into any HIS, EMR or scribe and replace metered LLM calls with deterministic, auditable, $0 automations.

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