Written and maintained by CASRAI Editorial Board
Last updated
General product and regulatory information for laboratory, clinic and supply staff. It is not medical advice and does not describe how any examination is performed.
Short answer
A nasal endoscope is a tubular endoscopic device used to examine the nasal cavity and nasal pharynx. In US regulation it is listed as a “nasopharyngoscope (flexible or rigid) and accessories” under 21 CFR 874.4760, FDA product code EOB, Class II, reviewed by the Ear Nose & Throat panel. “ENT scope” and “flexible nasopharyngoscope” are everyday names for the same device family.
Definition and scope
The regulation 21 CFR 874.4760 is titled “Nasopharyngoscope (flexible or rigid) and accessories.” It describes the device as a tubular endoscopic device intended to examine or treat the nasal cavity and nasal pharynx, and notes that it is typically used with a fiberoptic light source and carrier to provide illumination (eCFR, checked 2026-10-30).
Three points follow directly from that wording:
- One device group, several names. Catalogues and clinicians say “nasal endoscope”, “ENT scope” or “nasopharyngoscope”. The regulatory name is the one that appears in FDA records.
- Flexible or rigid. The regulation covers both in a single entry; it does not split them into separate classifications.
- Accessories are part of the entry. The title names the scope and its accessories together. The regulation lists the antroscope, nasopharyngolaryngoscope, nasosinuscope, nasoscope, postrhinoscope, rhinoscope and salpingoscope among the generic types, and says the device is made of materials such as stainless steel and flexible plastic. It excludes the fiberoptic light source and carrier.
For endoscopes in general, including how they are built across specialties, see what an endoscope is. This page covers only the nasal and nasopharyngeal family.
How it is used in practice
The regulation states the intended use as examining or treating the nasal cavity and nasal pharynx, with illumination typically supplied by a fiberoptic light source and carrier. That is the extent of what the regulatory text says about use. Clinical technique, positioning and patient preparation are matters for clinical training and the manufacturer’s instructions for use, and are outside the scope of this page.
Flexible or rigid: what the sources say
FDA’s entry for product code EOB is titled “nasopharyngoscope (flexible or rigid)”, and the regulation uses the same words. Both forms share one classification, one regulation number and one review panel. Any further differences between a given flexible scope and a given rigid scope, such as working length or diameter, are specific to each manufacturer’s product and are listed in that product’s labeling rather than in the regulation.
Where it matters for labs, clinics and supply decisions
The table below draws only on FDA’s classification record for code EOB and from 21 CFR 874.4760, both checked on 2026-10-30.
| Item | What the record states | Source |
|---|---|---|
| Device name | Nasopharyngoscope (flexible or rigid) | FDA product classification, code EOB |
| Regulation number | 21 CFR 874.4760 | FDA product classification; eCFR |
| Device class | Class II | FDA product classification; eCFR |
| Review panel | Ear Nose & Throat | FDA product classification |
| GMP exempt | No | FDA product classification |
| Illumination | Typically used with a fiberoptic light source and carrier | eCFR 874.4760 |
| Reusable units | The 510(k) must include validated reprocessing instructions and reprocessing validation data | FDA product classification, code EOB |
A document checklist for supply and quality staff
This checklist is an editorial reading of the table above, not a regulatory requirement on the buyer. It lists what each regulatory fact points a reader to look for in a manufacturer’s documentation:
- Regulatory identity. Does the labeling or listing identify the device as a nasopharyngoscope under 21 CFR 874.4760 and product code EOB? A device sold for this use but listed under a different code deserves a question to the manufacturer.
- Reprocessing instructions for reusable units. FDA’s EOB definition says a 510(k) for reusable devices must include validated reprocessing instructions and validation data. The instructions for use should therefore contain a reprocessing section.
- Light source and carrier. The regulation notes use with a fiberoptic light source and carrier. Check which light source and carrier the instructions for use name, and whether they are supplied with the scope or separately.
- Accessories. The regulation title groups accessories with the scope. Check which accessories the manufacturer lists as part of the same device.
For facility-level planning across scope types, see the endoscopy center supply checklist. For reprocessing, FDA maintains a hub of information for health care facilities at fda.gov under “Reprocessing Reusable Medical Devices”; it is a directory of links, and the manufacturer’s instructions for use remain the starting point for any specific scope.
Common misunderstandings
Is a nasal endoscope the same as a general endoscope?
No. “Endoscope” is a broad term; FDA classifies nasal and nasopharyngeal scopes in their own ENT entry, with their own regulation number and product code. Other scope types sit under other regulations.
Is it a sinus surgery instrument set?
No. 21 CFR 874.4760 covers the nasopharyngoscope and its accessories. Surgical hand instruments for the ear, nose and throat are a separate topic; see ENT surgical instruments and their FDA classification.
What does FDA’s record say about reusable units?
FDA’s record for code EOB states that reprocessing instructions and reprocessing validation data for this device type must be included in a 510(k) submission, and it lists the code as not GMP exempt.
Is “ENT scope” a regulatory term?
No. It is a trade and clinical shorthand. The term to search in FDA databases is nasopharyngoscope or product code EOB.
FAQ
What is a nasal endoscope used for?
Per 21 CFR 874.4760, it is intended to examine or treat the nasal cavity and nasal pharynx.
What is the FDA product code for a nasal endoscope?
EOB, “nasopharyngoscope (flexible or rigid)”, under 21 CFR 874.4760.
What class of device is it?
Class II, per both the regulation and FDA’s classification record.
What is a flexible nasopharyngoscope?
It is the flexible form of the same device family. The regulation covers flexible and rigid nasopharyngoscopes together.
Does it need a light source?
The regulation says it is typically used with a fiberoptic light source and carrier to provide illumination.
Sources
- eCFR, 21 CFR 874.4760, “Nasopharyngoscope (flexible or rigid) and accessories”: ecfr.gov/current/title-21/section-874.4760 (checked 2026-10-30).
- FDA Product Classification database, product code EOB: accessdata.fda.gov, classification.cfm?id=EOB (checked 2026-10-30).
- FDA, Information for health care facilities: reprocessing reusable medical devices: fda.gov reprocessing hub (checked 2026-10-30).
