Recall of Device Recall The Roche OMNI S Analyzer: cobas b 221, versions 5 and 6

According to U.S. Food and Drug Administration, this recall involved a device in United States that was produced by Roche Diagnostics Operations, Inc..

What is this?

A correction or removal action taken by a manufacturer to address a problem with a medical device. Recalls occur when a medical device is defective, when it could be a risk to health, or when it is both defective and a risk to health.

Learn more about the data here
  • Type of Event
  • Event ID
  • Event Risk Class
    Class 2
  • Event Number
  • Event Initiated Date
  • Event Date Posted
  • Event Status
  • Event Country
  • Event Terminated Date
  • Event Source
  • Event Source URL
  • Notes / Alerts
    U.S. data is current through June 2018. All of the data comes from the U.S. Food and Drug Administration, except for the category Manufacturer Parent Company.
    The Parent Company was added by ICIJ.
    The parent company information is based on 2017 public records.
  • Extra notes in the data
    Glucose oxidase, glucose - Product Code CGA
  • Reason
    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.
  • Action
    Roche Diagnostics has confirmed an issue with the calibration and QC stability of MSS parameters for cobas b 221 <6> systems. Internal investigations identified the formation of white deposits in the fluidic system, especially in the SD cartridge tubing, as the cause for the premature failure of the MSS parameters. These white deposits can potentially affect the fluidic pathways of both the Standby solution and the calibration solutions Cal1 to Cal4 (from the S3 Fluid Pack) and may reduce the lifetime of metabolite sensor cartridges. The cause of the white deposit has been identified as a chemical component of the S3 Fluid Pack solutions, as well as environmental bacterial contamination. Since this issue involves the S3 Fluid Pack, only the cobas b 221 <6> system is impacted. This issue may have an effect on the calibration of Glucose and Lactate parameters, which may lead to patient results being affected, as calibration drifts may not be detected by calibration and QC procedures. Glucose and Lactate are the only parameters affected by this issue. As a result, Roche is implementing an interim corrective action to be performed on your systems on a regular basis by Roche Field Engineering Specialist (FESs). Read the Urgent Medical Device Correction (UMDC) in its entirety. " Continue to run and maintain your cobas b 221 <6> system as per the Instructions for Use. " Complete the attached fax form and fax it to 1-888-656-6385. " File this UMDC for future reference. Please contact the Roche Support Network Customer Support Center, 24 hours a day, seven days a week at 1-800-526-2272 if you have questions about the information contained in this UMDC. Public Contact is Todd Siesky, at


  • Model / Serial
    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.
  • Product Classification
  • Device Class
  • Implanted device?
  • Distribution
    US Nationwide distribution.
  • Product Description
    Cobas b 221 (versions 5 and 6) Blood Gas and Electrolytes Analyzer
  • Manufacturer


  • Manufacturer Address
    Roche Diagnostics Operations, Inc., 9115 Hague Rd, Indianapolis IN 46256-1025
  • Manufacturer Parent Company (2017)
  • Source