# K190293: Single Use Cytology Brush BC-205D

- Pathway: 510(k) (Traditional)
- Applicant: Olympus Medical Systems Corp.
- Decided: Aug 2, 2019 after 172 days
- Product code: BTG (Brush, Biopsy, Bronchoscope (Non-Rigid))
- Device class: 2
- Regulation: 21 CFR 874.4680
- 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 K780872 (1978). 1 ancestor in all.
4 later devices descend from it; 3 cite it directly.
0 of 6 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K780872: Cytology Brush, CooperVision, Inc. (1978) Summary page 5.

## Most influential descendants
- K192164: Single Use Guide Sheath Kit K-401, K-402, & Single Use Guiding Device CC-220DR (2020), 1 descendant of its own
- K251279: Disposable Cytology Brush BC-202D/203D Series (2025), 0 descendants of its own
- K241679: Disposable Cytology Brush (AF series) (2025), 0 descendants of its own
- K212667: Single Use Guide Sheath Kit-401, K-402 (2021), 0 descendants of its own

## Indications for use
The cytology brush has been specifically designed to collect specimens or cells endoscopically for cytologic examination in conjunction with Olympus bronchoscopes with channel φ1.7mm or larger.

Source page: https://510kreport.com/device/K190293
Methodology: https://510kreport.com/methodology