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Other · ENT image analysis — telehealth otoscopy
Tyto Insights for Eardrum Bulging Detection
Tyto Care, Ltd.
The De Novo that gave AI otoscopy its own regulatory category: product code SHL, the ear, nose and throat image analyzer, minted in March 2026 for Tyto Care's eardrum-bulging detector. It is the catalogue's clearest example of a device meeting patients where telehealth actually happens — a parent's otoscope sweep at home, judged by software before a clinician ever looks. The FDA-reviewed pivotal put the classifier at 92 per cent sensitivity and 95 per cent specificity against a panel of generalist clinicians scoring in the low seventies, but those figures live in the De Novo record rather than a journal, and the peer-reviewed literature so far tests the examination platform, not the algorithm.
Performance Metrics
Clinical Evidence
The evidence for the AI module itself lives, for now, entirely inside the FDA review. Per Innolitics' regulatory analysis of DEN250014, the pivotal clinical-performance study scored 857 otoscopy recordings — 429 with eardrum bulging and 428 without — and the classifier reached a sensitivity of 92.31 per cent (95 per cent CI 89.02–94.43) and a specificity of 94.63 per cent (92.27–96.56). The comparator was a panel of three non-ENT clinicians reading the same recordings, who managed 72.42 per cent sensitivity and 73.25 per cent specificity; the study met its primary endpoint for both measures simultaneously, with the lower bound of each difference above zero, and the prevalence-adjusted negative predictive value was reported at 99.29 per cent. Site count, demographic breakdown and the full reference-standard design are not public beyond the FDA summary, and no peer-reviewed paper on the eardrum classifier was located in this review — the single AurisMark therefore rests on the FDA-published performance summary, regulator-reviewed but not independently replicated, rather than on peer-reviewed evidence. The benchmark choice is worth reading precisely: measuring against generalists quantifies the gap that exists in routine primary care — where otoscopy is famously variable — rather than against the specialist ceiling. What is peer-reviewed is the examination platform underneath. An independent nonrandomized controlled trial at two Brazilian paediatric hospitals (Wagner et al., JAMA Network Open 2023, N=690) found remote examinations with the Tyto device broadly concordant with in-person examination in children older than two years — with otoscopy among the weaker stations, at 72 per cent concordance for the ear canal and 86 per cent for the tympanic membrane. An earlier University of Virginia clinic study (McDaniel et al., Telemedicine and e-Health 2019, N=50) rated the device's otoscopic image quality above stand-alone digital comparators. Neither study tests the bulging classifier — both predate it — so the honest reading is an inversion of the usual pattern: the hardware that feeds the algorithm has independent prospective evidence; the algorithm has FDA-reviewed evidence whose headline figures are public but whose underlying study nobody outside the agency has seen in full.
| Study | Design | n | Sensitivity | Specificity | AUC | Published |
|---|---|---|---|---|---|---|
| Wagner R, Lima TC, Silva MRT, et al. (Hospital Pequeno Príncipe, Brazil — independent; tests the Tyto examination platform, not the AI module) | ProspectiveProspective | 690 | — | — | — | JAMA Network Open, Feb 2023 (6(2):e2252570); nonrandomized controlled trial, two paediatric hospitals; remote vs in-person examination concordant in children >2y; otoscopy concordance 72% (ear canal) / 86% (tympanic membrane) |
| McDaniel NL, Novicoff W, Gunnell B, Cattell-Gordon D (University of Virginia — independent; tests the examination hardware, not the AI module) | ProspectiveProspective | 50 | — | — | — | Telemedicine and e-Health, Dec 2019 (25(12):1225–1230); clinic-setting comparison vs stand-alone digital otoscope/stethoscope; higher image and sound quality, superior comparative diagnostic score |
Inside the algorithm
Editorial featureHow Tyto Insights reaches a verdict.
Five stages — from raw input to verdict — drawn from manufacturer documentation and the public regulatory record.
- INGEST
- NORMALISE
- DETECT
- LOCALISE
- VERDICT
Stage 01 · INGEST
An eardrum video arrives from a living room, not a clinic.
The input is an otoscopy video recorded with Tyto Care's compatible digital otoscope — usually during a home or remote telehealth encounter, where the person holding the device is as likely to be a parent as a clinician. The web-based software receives the recording for analysis; the authorisation is hardware-bound, so video from other otoscopes is out of scope by design.
Input
Otoscopy video
Inference
Per-recording
Inside the Auris+ Listing
Five more sections complete this device’s Auris+ Listing.
Decision Ledger
ProPro unlocks a private, cross-vendor log of every case you read on this device — what the AI called, what you concluded, and a one-line reason if you overrode it. Ready for the EU AI Act's deployer logging obligations when they land in 2028.
Clinical Evidence Deep Dive
ProPro unlocks the structured clinical-evidence summary — study count, target patient population, and a tabular accuracy-metrics view drawn from peer-reviewed sources.
Peer-Reviewed Publications
ProPro unlocks the curated peer-reviewed publication list with PubMed cross-links — the citation backbone of every editorial verdict.
Post-Market & Regulatory Conditions
ProPro unlocks the post-market surveillance summary, recall record, and the conditions of approval that bound real-world use.
AI Algorithm Version History
ProPro unlocks the chronological record of algorithm version changes — what changed when, drawn from manufacturer changelogs and regulatory filings.
Regulatory Approvals
DEN250014
Class II
Safety Record
No recall, FDA safety communication or adverse-event signal for Tyto Care devices was found in indexed public sources as of August 2026 — read as "none found in public reporting" rather than an exhaustive audit, since the MAUDE and FDA enforcement databases could not be queried directly from this environment. The authorisation's special controls are themselves the notable safety story: human-factors and usability testing in which users rely solely on the directions for use, software verification and hazard analysis, and labelling that must state hardware compatibility and carry a clear not-a-diagnostic warning. The Eardrum Quality Filter is the operative technical safeguard — recordings that are too short, corrupted or that never show the tympanic membrane are rejected rather than scored. The residual risk is the class-standard one for a high-NPV screen in lay hands: false reassurance. A "no bulging detected" result is not an examination, and the labelled boundary — results support a provider's judgement rather than replace it — is the safeguard that matters most in an over-the-counter product.
Intended Use & Indications
Per the De Novo authorisation coverage, the device analyses otoscopy video captured with Tyto Care's handheld examination device — typically during a home or remote telehealth encounter, where the recording is frequently made by a parent or the patient rather than a clinician — and reports whether bulging of the tympanic membrane is detected. Eardrum bulging is a common finding in acute otitis media, the ear infection that drives a large share of paediatric primary-care and urgent-care visits. The authorisation is over-the-counter and carries a deliberate boundary: output is a detection result offered to the healthcare provider as clinical support, a provider's advice is required to understand what it means, and the labelling must carry a clear not-a-diagnostic warning; the software is not intended to detect other abnormal otoscopic findings. The indication starts at six months of age, reaching most of the population in which acute otitis media is actually managed.