# K911582: Stak-Chex

- Pathway: 510(k) (Traditional)
- Applicant: Streck Laboratories, Inc.
- Decided: May 28, 1991 after 50 days
- Product code: JCN (Control, Cell Counter, Normal And Abnormal)
- Device class: 2
- Regulation: 21 CFR 864.8625
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
3 later devices descend from it; 2 cite it directly.
0 of 4 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
- K992887: Stak-Chex Plus Retics (1999), 1 descendant of its own
- K090137: Stak-Chex Plus Retics (2009), 0 descendants of its own
- K021922: Modification to Para 5X (2002), 0 descendants of its own

Source page: https://510kreport.com/device/K911582
Methodology: https://510kreport.com/methodology