# K163257: VitreOx Anti-fog Solution

- Pathway: 510(k) (Traditional)
- Applicant: Sio2 Nanotech, LLC
- Decided: May 24, 2017 after 191 days
- Product code: OCT (Anti Fog Solution And Accessories, Endoscopy)
- Device class: 2
- Regulation: 21 CFR 876.1500
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 3 generations back to K904871 (1991). 16 ancestors in all.
1 later device descends from it; 1 cites it directly.
0 of 18 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K062779: Defogging Heated Endoscope Lens Protector (Dhelp); Defogging Endoscope Lens Protector (Delp), New Wave Surgical Corporation (2006) Summary page 4.

## Most influential descendants
- K251068: KnoxFog Anti-fogging Device (2025), 0 descendants of its own

## Indications for use
VitreOx® is a temporary anti-fog coating and therein defogs devices such as a laparoscopic accessory intended to facilitate intraoperative defogging of the laparoscope lens thereby maintaining visualization of the surgical site.

Source page: https://510kreport.com/device/K163257
Methodology: https://510kreport.com/methodology