# K162916: 3NT endoscopy system

- Pathway: 510(k) (Traditional)
- Applicant: 3nt Medical, Ltd.
- Decided: Feb 24, 2017 after 130 days
- Product code: EOB (Nasopharyngoscope (Flexible Or Rigid))
- Device class: 2
- Regulation: 21 CFR 874.4760
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 7 generations back to K931154 (1993). 33 ancestors in all.
3 later devices descend from it; 3 cite it directly.
0 of 37 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K082569: Entellus Medical Flexible Endoscope and Eyepiece, Entellus Medical, Inc. (2008) Summary page 4.
- K072073: Vision-Sciences Ent-5000 and Ent-5100 Video Ent Scope with Endosheath System, Dpu-5000/Dpu-5050 Video Processor, Vision-Sciences, Inc. (2007) Summary page 4.

## Most influential descendants
- K220004: Zsquare ENT-Flex Endoscope (2022), 0 descendants of its own
- K202727: Peregrine Endoscopy System (2021), 0 descendants of its own
- K192305: Colibri Endoscopy System (2020), 0 descendants of its own

## Indications for use
The 3NT endoscopy system is intended to visualize the internal cavities of the ear, airways, nose and sinus cavities during diagnostic and therapeutic endoscope procedures.

Source page: https://510kreport.com/device/K162916
Methodology: https://510kreport.com/methodology