# MJJ: Cpb Check Valve, Retrograde Flow, In-Line

- Device class: 2; regulation: 21 CFR 870.4400; FDA's rule: 510(k) required
- FDA decisions: 9
- Recalls: 36 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026; MAUDE to Sep 30, 2026

## Decisions per year (last 10)
- 1992: 1
- 1993: 2
- 1996: 1
- 1998: 1
- 2000: 1
- 2001: 1
- 2015: 1
- 2018: 1

## Most-cited predicates
- K922356: Flow Control Valve, Cat. NO. Acv-38 (1993), cited by 3

Source page: https://510kreport.com/product-code/MJJ
Data by year (CSV): https://510kreport.com/product-code/MJJ.csv