# K955436: Access Vitamin B12 Assay (Modification)

- Pathway: 510(k) (Traditional)
- Applicant: Bio-Rad Laboratories, Inc.
- Decided: Jan 24, 1996 after 114 days
- Product code: CDD (Radioassay, Vitamin B12)
- Device class: 2
- Regulation: 21 CFR 862.1810
- Recalls of this device: 1 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
6 later devices descend from it; 3 cite it directly.
0 of 7 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K090588: Power Processor Sample Processing System with Generic Connection Module, Model: 4210 (2009), 4 descendants of its own
- K110413: Power Processor Sample Processing System with Generic Connections (2011), 3 descendants of its own
- K140496: Access Vitamin B12 Assay, Access Ferritin Assay, Access Folate Assay, Access HYPERsensitive hTSH Assay, Power Express Sample Processing System Generic Connection Module and Access Immunoassay System Reagents (2014), 1 descendant of its own
- K223289: Access Vitamin B12 (2022), 0 descendants of its own
- K190298: DxA 5000, DxI 800 Access Immunoassay System, Access Ferritin, Access Folate, Access TSH (3rd IS), Access Vitamin B12 (2019), 0 descendants of its own

## Recalls of this device
- Feb 27, 2025 · Class II · Z-2115-2025: Beckman Coulter has received complaints of erroneous Vitamin B12 results when using Access Vitamin B12 Reagent lot 439850. The affected reagent lot may cause erroneously low or high Vitamin B12 result

Source page: https://510kreport.com/device/K955436
Methodology: https://510kreport.com/methodology