510(k) · Cleared
ClearedSlide-on Endosheath System for Sensory Testing
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Vision-Sciences, Inc. · EOB Nasopharyngoscope (Flexible Or Rigid)
Cleared on Jul 2, 2003 as substantially equivalent to K990354 (Vision-Sciences, Inc., 1999) and 3 other predicates after a 22-day review. Its family tree reaches back 5 generations to 1992.
- Decided
- Jul 2, 2003
- Review
- 22 days
- Class
- Class II
- Product code
- EOB
- Recalls
- None
- Predicates
- 4
Its longest line of descent runs back 5 generations to K921244 (1992). 18 ancestors in all, the oldest K823701 (1983). No later device cites it as a predicate yet.
- Root · 5 generations backK921244 Disposable Protective SheathVision-Sciences, Inc. · 1992
- 4 generations backK961591 Disposable Endosheath for E-F100 Flexible NasopharyngoscopeVision-Sciences, Inc. · 1996
- 3 generations backK963795 Vision-Sciences Model B-F100 Bronchoscope with Model BS-F21…Vision-Sciences, Inc. · 1996
- 2 generations backK021344 B-F200 Bronchoscope with BSS-F21 Endosheath SystemVision-Sciences, Inc. · 2002
- 1 generation backK024095 Modification to Vision Sciences Endosheath SystemVision-Sciences, Inc. · 2003
- This deviceK031790 Slide-on Endosheath System for Sensory TestingVision-Sciences, Inc. · 2003
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K921244 | Disposable Protective Sheath | Vision-Sciences, Inc. | 1992 | — |
| −4 | K961591 | Disposable Endosheath for E-F100 Flexible Nasopharyngoscope | Vision-Sciences, Inc. | 1996 | — |
| −3 | K963795 | Vision-Sciences Model B-F100 Bronchoscope with Model BS-F21 Disposable… | Vision-Sciences, Inc. | 1996 | — |
| −2 | K021344 | B-F200 Bronchoscope with BSS-F21 Endosheath System | Vision-Sciences, Inc. | 2002 | — |
| −1 | K024095 | Modification to Vision Sciences Endosheath System | Vision-Sciences, Inc. | 2003 | — |
| 0 (this device) | K031790 | Slide-on Endosheath System for Sensory Testing | Vision-Sciences, Inc. | 2003 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1983 | 1 | 0 |
| 1987 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1999 | 1 | 0 |
| 2002 | 1 | 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? (4)
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 |
|---|---|---|---|
| * | K990354 | EndosheathSummary page 1…According to Section 5 13 of the Federal Food, Drug, and Cosmetic Act, the device classification is Class II. Predicate Devices: K990354 - Slide-On Endosheath@ for Flexible ENT Scopes KO12543 - EndoSheath@ System for Flexible ENT Scopes… | 1999 |
| * | K012543 | Vision Sciences Endosheath System | 2002 |
| * | K024095 | Modification to Vision Sciences Endosheath System | 2003 |
| * | K964815 | AP-4000, Air Pulse Sensory StimulatorSummary page 1…Vision-Sciences, Inc. 9 Strathmori Road Natick, MA 0 1760 K964815 - AP-4000 Air Pulse Sensory Stimulator Manufactured by: Pentax Precisio… | 1997 |
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 11 years and passes through 1 company; a new generation was cleared every 8 months on median.
- 1 of the 18 ancestors has a recall of any class.
- 11 other devices also cite its predicate K990354.
How does its category compare?
All EOB devicesEOB Nasopharyngoscope (Flexible Or Rigid): FDA decisions, review times, recalls and adverse event reports over 20 years.
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 Endosheath® System provides a sterile, disposable protective covering for the scope to be used during flexible endoscopic examination of the upper airway, vocal cords and/or nasal passages. The System may also be used in conjunction with the Pentax AP-4000 Air Pulse Sensory Stimulator to elicit Laryngeal Closure Reflex (Swallow) and to measure the sensory discrimination threshold at which the reflex occurs in the area of the Upper Airway innervated by the Superior Laryngeal Nerve.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K031790 · printed Nov 6, 2026
Cite this page
510(k) Report. “K031790: Slide-on Endosheath System for Sensory Testing.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K031790
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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