# K172663: Cytology Brush

- Pathway: 510(k) (Traditional)
- Applicant: Micro-Tech (Nanjing) Co., Ltd.
- Decided: Mar 5, 2018 after 181 days
- Product code: FDX (Endoscopic Cytology Brush)
- 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: 1 generation back to K896318 (1990). 1 ancestor in all.
1 later device descends from it; 1 cites it directly.
0 of 3 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K896318: Wilson-Cook Cytology Brushes, Wilson-Cook Medical, Inc. (1990) Summary page 5.

## Most influential descendants
- K220063: Single Use Cytology Brush (2022), 0 descendants of its own

## Indications for use
The Cytology Brush is used to collect cells from the bronchi and upper and lower gastrointestinal tracts.

Source page: https://510kreport.com/device/K172663
Methodology: https://510kreport.com/methodology