# K990580: Cryocheck LA Sure, Model SUR25-10

- Pathway: 510(k) (Traditional)
- Applicant: Precision Biologic
- Decided: Jul 28, 1999 after 155 days
- Product code: GIR (Reagent, Russel Viper Venom)
- Device class: 1
- Regulation: 21 CFR 864.8950
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Indications for use
Cryov'Check™ LA Sure™ dilute Russell’s Viper Venom Test (dRVVT) is a high concentration phospholipid reagent intended for use in a confirmatory test to verify the presence of lupus anticoagulants (LA) in human plasma. Once LA is suspected by a prolonged result with the Cryov'Check™ LA Check™ screening (low concentration phospholipid) reagent, LA Sure may then be used concomitantly to establish a ratio (LA Check/LA Sure) useful in discriminating between LA positive and LA negative specimens.

Source page: https://510kreport.com/device/K990580
Methodology: https://510kreport.com/methodology