# K103529: Liaison XL Analyzer Model 10050

- Pathway: 510(k) (Traditional)
- Applicant: DiaSorin, Inc.
- Decided: Jan 21, 2011 after 51 days
- Product code: LOL (Hepatitis A Test (Antibody And Igm Antibody))
- Device class: 2
- Regulation: 21 CFR 866.3310
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 2 generations back to P890014 (1990). 3 ancestors in all.
2 later devices descend from it; 1 cites it directly.
0 of 6 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K082050: Liaison Hav Igm Assay, Liaison Control Hav Igm, DiaSorin, Inc. (2008) Summary page 1.
- K032844: Liaison 25 OH Vitamin D, DiaSorin, Inc. (2004) Summary page 3.

## Most influential descendants
- K141116: Liaison XL Analyzer (2014), 1 descendant of its own
- K260770: LIAISON Murex HBsAg Qual; LIAISON XL; LIAISON diluteX (2026), 0 descendants of its own

## Indications for use
The LIAISON® Anti-HAy assay is an in vitro chemiluminescent immunoassay intended for the qualitative detection of total antibodies to hepatitis A (anti-HAy) in human serum and sodium heparin plasma samples using the LIAISON® Analyzer family. The assay is indicated as an aid in the laboratory diagnosis of current or previous HAV infections in conjunction with other serological and clinical information and to determine the presence of an antibody response to HAV in vaccine recipients. This assay is not intended for screening blood or solid or soft tissue donors. Assay performance characteristics have not been established for immunocompromised or immunosuppressed patients. The user is responsible for establishing assay performance characteristics in these populations. Caution: U.S. Federal Law restricts this device to sale by or on the order of a physician. The LIAISON® XL Analyzer is an automated discrete continuous loading chemiluminescent immunoassay (CLIA) analyzer for in vitro diagnostic analysis of CLIAs on human serum or plasma. The system menu includes infectious disease, bone and mineral, and endocrinology CLIAs. It is to be used only with FDA cleared chemiluminescence immunoassays that are marketed by DiaSorin for the LIAISON XL Analyzer. The LIAISON® Control Anti-HAV (negative and positive) is intended for use as assayed quality control samples to monitor the performance of the LIAISON® Anti-HAy assay. The performance characteristics of LIAISON® controls have not been established for any other assays or instrument platforms different from LIAISON® and LIAISON® XL.

Source page: https://510kreport.com/device/K103529
Methodology: https://510kreport.com/methodology