# K811985: Ultipor SQ40S Blood Transfusion Filter

- Pathway: 510(k) (Traditional)
- Applicant: Pall Biomedical Products Co.
- Decided: Jul 28, 1981 after 15 days
- Product code: CAK (Microfilter, Blood Transfusion)
- Device class: 2
- Regulation: 21 CFR 880.5440
- 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
- K990310: Charter Medical, LTD MP 450 (40 Micron Filter) (1999), 0 descendants of its own

Source page: https://510kreport.com/device/K811985
Methodology: https://510kreport.com/methodology