openFDA Device Enforcement
Report-date coverage
June 20, 2012–July 08, 2026
Known gap: openFDA describes 2004-present coverage, but the current export has no report-date records in this interval.
openFDA Device Recall
event_date_initiated coverage
June 01, 1997–June 30, 2026
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device · product 1 of 1
Cobas b 221 (versions 5 and 6) Blood Gas and Electrolytes Analyzer
Chemical component of the F3 Fluid pack and environmental bacterial contamination causes a positive bias up to 39% at 4.1 mmol/l for the glucose measurement and 30% at 4.12 mmol/l for lactate. Urea readings are unaffected.
Code information
Model/Catalog/Part #: 1. cobas b221 <6>=Roche OMNI S6 SYSTEM; and 2. 03337154692 - cobas b 221<6>=Roche OMNI S6 SYSTEM CU Potassium - CEM, Calcium - JFP, Sodium - JGS, Chloride - CGZ, Blood Gases (PCO2, PO2) and pH - CHL, Hemoglobin -GKR, Hematocrit - GKF, Oxygen saturation, Carboxyhemoglobin - GHS, Oxyhemoglobin - GGZ, Methemoglobin - KHG, Deoxyhemoglobin - GKA, Lactic Acid - KHP, Glucose- CGA, Urea Nitrogen - CDS.