510(k) · Cleared
ClearedSingle-use Flexible Rhinolaryngoscope; Digital Video Monitor
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Hunan Vathin Medical Instrument Co., Ltd. · EOB Nasopharyngoscope (Flexible Or Rigid)
Cleared on Jun 14, 2023 as substantially equivalent to K190972 (Ambu A/S, 2019) after a 107-day review. Its family tree reaches back 5 generations to 1993.
- Decided
- Jun 14, 2023
- Review
- 107 days
- Class
- Class II
- Product code
- EOB
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 5 generations to K931154 (1993). 10 ancestors in all, the oldest K850978 (1985). No later device cites it as a predicate yet.
- Root · 5 generations backK931154 Evis 200 SystemOlympus Corp. · 1993
- 4 generations backK963033 BF 240/P240/IT240 Bronchovideoscope & AccessoriesOlympus America, Inc. · 1996 · Recalled
- 3 generations backK981543 Olympus LF-TP and LF-DP Tracheal Intubation Fiberscopes, Accessories…The Olympus Optical Co. · 1998 · Recalled
- 2 generations backK013591 Xenf-TP Rhino-Laryngofiberscope, Its Acessories and Ancillary…Olympus Optical Co., Ltd. · 2001
- 1 generation backK190972 Ambu aScope 4 RhinoLaryngo InterventionAmbu A/S · 2019
- This deviceK230536 Single-use Flexible Rhinolaryngoscope; Digital Video MonitorHunan Vathin Medical Instrument Co., Ltd. · 2023
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K931154 | Evis 200 System | Olympus Corp. | 1993 | — |
| −4 | K963033 | BF 240/P240/IT240 Bronchovideoscope & Accessories | Olympus America, Inc. | 1996 | 6 |
| −3 | K981543 | Olympus LF-TP and LF-DP Tracheal Intubation Fiberscopes, Accessories and… | The Olympus Optical Co. | 1998 | 5 |
| −2 | K013591 | Xenf-TP Rhino-Laryngofiberscope, Its Acessories and Ancillary Equipment | Olympus Optical Co., Ltd. | 2001 | — |
| −1 | K190972 | Ambu aScope 4 RhinoLaryngo Intervention | Ambu A/S | 2019 | — |
| 0 (this device) | K230536 | Single-use Flexible Rhinolaryngoscope; Digital Video Monitor | Hunan Vathin Medical Instrument Co., Ltd. | 2023 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1985 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1995 | 2 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in EOB? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new EOB device
- #1 K253184 Video Rhinolaryngoscope System (Disposable…score 14.4 · 12 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K190972 | Ambu aScope 4 RhinoLaryngo InterventionSummary page 4…ass II Class II Product code: EOB EOQ Submitter: Ambu A/S Ambu A/S 510(k) number: K190972 K173727 IV Device description The Vathin® Video Rhinolaryngoscope System consists of Single-use flexible Rhi… | 2019 |
| † | K173727 | Ambu aScope 3 Slim 3.8/1.2 and Ambu aScope 4 Broncho Slim 3.8/1.2; Ambu aScope 3 Regular… | 2018 |
| † | K221581 | Single-Use Flexible Rhinolaryngoscope | 2022 |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 30 years and passes through 6 companies; a new generation was cleared every 3.6 years on median.
- 4 of the 10 ancestors have a recall of any class.
- 1 other device also cites its predicate K190972.
How does its category compare?
All EOB devicesEOB Nasopharyngoscope (Flexible Or Rigid): FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.
FDA decisions per year · EOB
3in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · EOB
192in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · EOB
1in 2023
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · EOB
1,338in 2025
MAUDE reports naming product code EOB, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 4 | 37 | 0 | 1 |
| 2008 | 4 | 38 | 0 | 1 |
| 2009 | 1 | — | 0 | 3 |
| 2010 | 1 | — | 0 | 0 |
| 2011 | 4 | 209 | 2 | 3 |
| 2012 | 1 | — | 0 | 4 |
| 2013 | 0 | — | 0 | 5 |
| 2014 | 3 | 282 | 0 | 5 |
| 2015 | 3 | 115 | 0 | 13 |
| 2016 | 3 | 174 | 0 | 16 |
| 2017 | 6 | 216 | 0 | 18 |
| 2018 | 6 | 230 | 0 | 23 |
| 2019 | 8 | 149 | 0 | 51 |
| 2020 | 3 | 175 | 0 | 47 |
| 2021 | 2 | — | 0 | 345 |
| 2022 | 6 | 178 | 1 | 1,158 |
| 2023 | 3 | 107 | 1 | 1,352 |
| 2024 | 2 | — | 0 | 1,498 |
| 2025 | 3 | 192 | 0 | 1,338 |
| 2026 | 5 | 180 | 1 | — |
What is it indicated for?
The Single-use Flexible Rhinolaryngoscope is designed to be used with the Digital Video Monitor, for examination of nasal cavity and upper respiratory tract. For Rhinolaryngoscope models that include a working channel and permit the use of a compatible 3rd party accessory, treatment is also possible.
The Digital Video Monitor is specially designed to be used with compatible Vathin endoscopes and other auxiliary equipment for the purposes of endoscopic diagnosis, treatment and video observation.
The Vathin® Video Rhinolaryngoscope System is for use in a hospital environment.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K230536 · printed Nov 6, 2026
Cite this page
510(k) Report. “K230536: Single-use Flexible Rhinolaryngoscope; Digital Video Monitor.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K230536
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026