# K896318: Wilson-Cook Cytology Brushes

- Pathway: 510(k) (Traditional)
- Applicant: Wilson-Cook Medical, Inc.
- Decided: Apr 9, 1990 after 159 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
No predicates in its family tree.
9 later devices descend from it; 3 cite it directly.
0 of 10 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K040324: Wilson-Cook Double Lumen Biliary Cytology Brush (2004), 5 descendants of its own
- K171573: Fusion Cytology Brush, CytoMax II Double Lumen Cytology Brush (2017), 3 descendants of its own
- K181317: Fusion Cytology Brush, CytoMax II Double Lumen Cytology Brush (2019), 2 descendants of its own
- K192908: Fusion Cytology Brush, CytoMax II Double Lumen Cytology Brushes (2019), 1 descendant of its own
- K172663: Cytology Brush (2018), 1 descendant of its own

Source page: https://510kreport.com/device/K896318
Methodology: https://510kreport.com/methodology