# K023131: Freelite Human Lambda Free Kit

- Pathway: 510(k) (Traditional)
- Applicant: The Binding Site, Ltd.
- Decided: Jan 21, 2003 after 134 days
- Product code: DEH (Lambda, Antigen, Antiserum, Control)
- Device class: 2
- Regulation: 21 CFR 866.5550
- 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’s file for it is a 510(k) statement, which names no predicate.

## Most influential descendants
- K153394: Diazyme Human Kappa Free Light Chain Assay, Diazyme Human Lambda Free Light Chain Assay, Diazyme Human Kappa/Lamda Free Light Chain Calibrator, Diazyme Human Kappa/Lamda Free Light Chain Calibrator (2016), 0 descendants of its own

## Indications for use
This kit is intended for the quantitation of lambda free light chains in serum and urine on the Roche Hitachi 911 and Hitachi 912. Measurement of the various amounts of the different types of light chains aids in the diagnosis and monitoring of multiple myelomas, lymphocytic neoplasms, Waldenstrom's macroglobulinemia and connective tissue diseases, such as systemic lupus erythematosus.

Source page: https://510kreport.com/device/K023131
Methodology: https://510kreport.com/methodology