# K770771: Aerosol Effusion System #1740

- Pathway: 510(k) (Traditional)
- Applicant: Hudson Oxygen Therapy Sales Co.
- Decided: Jun 2, 1977 after 35 days
- Product code: BYH (Drain, Tee (Water Trap))
- Device class: 1
- Regulation: 21 CFR 868.5995
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
1 later device descends from it; 1 cites it directly.
0 of 2 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
- K083702: Trach-Assist (2009), 0 descendants of its own

Source page: https://510kreport.com/device/K770771
Methodology: https://510kreport.com/methodology