Events

Recall of AMM Flex Reagent Cartridge used with Dimension Clinical Chemistry System Assay: Ammonia (AMM)

According to Department of Health, Therapeutic Goods Administration, this recall involved a device in Australia that was produced by Siemens Healthcare Pty Ltd.

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
    Recall
  • Event ID
    RC-2017-RN-00349-1
  • Event Risk Class
    Class II
  • Event Initiated Date
    2017-03-14
  • Event Country
    Australia
  • Event Source
    DHTGA
  • Event Source URL
    https://apps.tga.gov.au/Prod/sara/arn-detail.aspx?k=RC-2017-RN-00349-1
  • Notes / Alerts
    Australian data is current through July 2018. All of the data comes from the Australian Therapeutic Goods Administration, except for the categories Manufacturer Parent Company and Product Classification.
    The Parent Company and the Product Classification were added by ICIJ.
    The parent company information is based on 2017 public records. The device classification information comes from FDA’s Product Classification by Review Panel, based on matches of recall data from the U.S. and Australia.
  • Extra notes in the data
  • Reason
    In september 2014, siemens healthcare diagnostics issued customer notification dc 14-09 that addressed a high rate of “abnormal assay” test report messages for its dimension ammonia (amm) assay. internal testing revealed that the “result monitor below” mean factor for ammonia (ammdf119) is set with a narrow limit, which may cause some ammonia results to be inappropriately flagged with an “abnormal assay”. flagged amm “abnormal assay” results may be attributed to a contamination of open wells of the amm flex reagent cartridge. quality control (qc) and patient samples may be affected; however, affected results are appropriately flagged.
  • Action
    Siemens is reducing the AMM open well stability from 3 days to 1 day (24 hours) and providing instructions for managing this change. Dimension AMM IFU revision E will reflect this change. The new version of Dimension software, 10.2, will do the following: - Automatically move to a new well every day. This decrease in the open well maximum duration reduces the amount of time the AMM reagent is exposed to any potential contaminates, reduces the need for customers to manually move to a new reagent well, and aids in the prevention of erroneous flagging. - Contain the Below Mean Factor limit of 0.90. Users are notified that until Dimension 10.2 software is installed on their instruments, manually move to a fresh AMM well of reagent every day. Also, to reduce the likelihood of false AMM “Abnormal assay” messages, verify that the Below Mean Factor for the Result Monitor is set to the revised limit of 0.90 by following instructions provided in the customer letter.

Device

AMM Flex Reagent Cartridge used with Dimension Clinical Chemistry System Assay: Ammonia (AMM)
  • Model / Serial
    AMM Flex Reagent Cartridge used with Dimension Clinical Chemistry System Assay: Ammonia (AMM)Catalogue Number: DF119Siemens Material Number (SMN):10711991Lot Numbers: All in-date lotsARTG Number: 181689
  • Manufacturer
    Siemens Healthcare Pty Ltd

Manufacturer

Siemens Healthcare Pty Ltd
  • Manufacturer Parent Company (2017)
    Siemens AG
  • Source
    DHTGA