Siemens Dimension Vista(R) System B12 Flex(R) Reagent Cartridge (K6442) B12 Flex Reagent Cartr...
FDA Device Recall #Z-1869-2012 — Class II — May 8, 2012
Recall Summary
| Recall Number | Z-1869-2012 |
| Classification | Class II — Moderate risk |
| Date Initiated | May 8, 2012 |
| Status | Terminated |
| Voluntary | Voluntary: Firm initiated |
Recalling Firm
| Firm | Siemens Healthcare Diagnostics, Inc. |
| Location | Newark, DE |
| Product Type | Devices |
| Quantity | 59,735 |
Product Description
Siemens Dimension Vista(R) System B12 Flex(R) Reagent Cartridge (K6442) B12 Flex Reagent Cartridge used with the Dimension Vista System for the in vitro diagnostic test for the quantitative measurement of Vitamin B12 in human serum and plasma.
Reason for Recall
Siemens Healthcare Diagnostics has confirmed that the presence of Intrinsic Factor Blocking Antibody in some patients can result in a false and significant elevation in the reported concentration of Vitamin B12 on the Dimension Vista System. This issue affects all lots of B12 Flex reagent cartridges on the Dimension Vista System.
Distribution Pattern
Worldwide Distribution -- USA (nationwide) and the countries of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Great Britian, Italy, Netherlands, Norway, Portugal, Slovakia, South Africa, Spain, Switzerland, United Arab Emirates, Canada, New Zealand, and South Korea. *** Center Recommended Depth is Retail***
Lot / Code Information
B12 Flex(R) reagent cartridge (K6442) - IFBA Interference All lots -- 07304AA, Exp 5/28/08; 08021AB, Exp 1/20/09; 08042AC, Exp 2/10/09; 08071AA, Exp 3/11/09; 08114AC, Exp 4/23/09; 09019AC, Exp 1/19/10; 09019AB, Exp 1/19/10; 09040AA, Exp 2/10/10; 09068AA, Exp 3/9/10; 09085AB, Exp 3/26/10; 09110AE, Exp 4/20/10; 09140AD, Exp 5/19/10; 09180AC, Exp 6/29/10; 09215AA, Exp 8/3/10; 09236AC, Exp 8/24/10; 09279AC, Exp 10/6/10; 09307AA, Exp 11/3/10; 10012AA, Exp 1/13/11; 10039AA, Exp 2/5/11; 10060AB, Exp 3/1/11; 10074AB, Exp 3/16/11; 10097AB, Exp 4/7/11; 10109AD, Exp 4/19/11; 10123AA, Exp 5/3/11; 10138AB, Exp 5/18/11; 10155AC, Exp 6/3/11; 10181AA, Exp 7/1/11; 10208AE, Exp 7/27/11; 10208AD, Exp 7/27/11; 10221AC, Exp 8/9/11; 10237AD, Exp 8/25/11; 10243AE, Exp 8/31/11; 10265AB, Exp 9/22/11; 10281AB, Exp 10/8/11; 10301AC, Exp 10/28/11; 10322AB, Exp 11/18/11; 10341AC, Exp 12/6/11; 10341AD, Exp 12/7/11; 11012AB, Exp 1/13/12; 11038AF, Exp 2/9/12; 11038AG, Exp 2/8/12; 11066AE, Exp 3/7/12; 11087AD, Exp 3/27/12; 11118AB, Exp 4/28/12; 11145AA, Exp 5/24/12; 11171AA, Exp 6/21/12; 11234AA, Exp 8/21/12; 11234AB, Exp 8/21/12; 11250AA, Exp 9/6/12; 11263AA, Exp 9/19/12; 11283AA, Exp 10/9/12; 11297AB, Exp 10/23/12; 11312AA, Exp 11/6/12; 11332AA, Exp 11/27/12; 11346AA, Exp 12/11/12; 11361AB, Exp 12/27/12; 12011AA, Exp 1/15/13; 12030AB, Exp 1/30/13; 12044AB, Exp 2/13/12; 12059AB, Exp 3/27/13; 12079AB, Exp 3/18/13; and 12093AB, Exp 4/1/13.
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.