# K904874: Adjustable Peep Valve

- Pathway: 510(k) (Traditional)
- Applicant: Vital Signs, Inc.
- Decided: Jan 8, 1991 after 70 days
- Product code: BYE (Attachment, Breathing, Positive End Expiratory Pressure)
- Device class: 2
- Regulation: 21 CFR 868.5965
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
5 later devices descend from it; 1 cites it directly.
1 of 6 devices in its family (counting itself) has 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
- K013884: Boussignac C.P.a.P. Device (2003), 4 descendants of its own
- K123957: Pneupac Parapac Plus (2013), 0 descendants of its own
- K122610: Plaxtron Cpap System, Model CH-FFM-87XX/CH-FFM-88XX Series (2013), 0 descendants of its own
- K112546: O_Two Cpap System (2011), 0 descendants of its own
- K090710: Mercury Cpap (2009), 0 descendants of its own

Source page: https://510kreport.com/device/K904874
Methodology: https://510kreport.com/methodology