Atellica CH ¿2-Microglobulin (B2M) -M) Assay for in vitro diagnostic use in the quantitative dete...
FDA Device Recall #Z-0440-2022 — Class II — December 1, 2021
Recall Summary
| Recall Number | Z-0440-2022 |
| Classification | Class II — Moderate risk |
| Date Initiated | December 1, 2021 |
| Status | Terminated |
| Voluntary | Voluntary: Firm initiated |
Recalling Firm
| Firm | Siemens Healthcare Diagnostics, Inc. |
| Location | Tarrytown, NY |
| Product Type | Devices |
| Quantity | US: 46 units OUS: 794 units |
Product Description
Atellica CH ¿2-Microglobulin (B2M) -M) Assay for in vitro diagnostic use in the quantitative determination of ¿2-microglobulin in human serum and plasma Siemens Material Number (SMN): 11097635
Reason for Recall
¿2 Microglobulin (B2M) Reagent Lot 211446 Bias with Quality Control and Patient Sample Results. Positive bias on patient samples of up to +20.9% at a B2M concentration of approximately 1.5 mg/L and a negative bias on patient samples of up to -10.5% at a B2M concentration of approximately 15 mg/L
Distribution Pattern
Worldwide distribution - US Nationwide distribution in the states of CA, CO, MA, MD, MS, NC, NE, NH, OH, VA, WI and the countries of Argentina, Australia, Austria, Belgium, Brazil, Bulgaria, Czech Republic, Denmark, Ecuador, France, Germany, Greece, India, Iran, Israel, Italy, Japan, Mexico, Morocco, Oman, P.R. China, Pakistan, Philippines, Portugal, Slovakia, South Africa, Spain, Switzerland, Turkey, United Kingdom, Uruguay.
Lot / Code Information
Lot Number: 211446 UDI: 00630414595566
Other Recalls from Siemens Healthcare Diagnostics, Inc.
| Recall # | Classification | Product | Date |
|---|---|---|---|
| Z-1484-2026 | Class II | Atellica CH Urine Albumin (UAlb). Material Numb... | Jan 20, 2026 |
| Z-0491-2026 | Class II | IMMULITE 2000 Oak Mix Specific Allergen; Sieme... | Oct 6, 2025 |
| Z-0492-2026 | Class II | 3gAllergy Specific IgE Universal Kit; Kit Comp... | Oct 6, 2025 |
| Z-0493-2026 | Class II | Food Panel 3 Specific Allergen; Siemens Materi... | Oct 6, 2025 |
| Z-0366-2026 | Class II | Assay: IMMULITE 2000 Intact PTH; Test Code: iP... | Sep 22, 2025 |
Frequently Asked Questions
Contact your healthcare provider and the device manufacturer immediately. Check whether your specific model number and lot number are included in the recall scope. For external devices, stop using the affected product and arrange a replacement. For implanted devices, do not panic — removal is typically not required unless the risk assessment clearly indicates it. Your physician will guide you based on your individual clinical situation and the FDA's recommended actions. Report any adverse effects you may have experienced to FDA MedWatch at 1-800-FDA-1088.
Class I recalls indicate a reasonable probability of serious adverse health consequences or death from the defect. Class II recalls involve products that may cause temporary or medically reversible adverse health consequences, or where serious consequences are remote. Class III recalls cover products not likely to cause any adverse health consequences, typically involving technical regulatory violations. The classification guides urgency — Class I recalls require immediate action, while Class III may simply involve returning a product or acknowledging a labeling change. Always read the specific recall notice for recommended patient actions.
Report problems with medical devices to the FDA through MedWatch at 1-800-FDA-1088 or online at FDA.gov/safety/medwatch. Healthcare facilities are required by law to report device-related serious injuries and deaths. Patients and consumers can also report voluntarily. Include the device name, manufacturer, model number, and a description of the problem and any patient outcome. Reports from patients and clinicians help the FDA identify emerging safety signals and may trigger investigations that lead to recalls of dangerous devices.
What Should You Do?
Stop using this device if you are affected by this recall. Contact your healthcare provider and the manufacturer immediately for guidance. Report adverse events to FDA MedWatch.