Recall of Device Recall Siemens mMLC (ModuLeaf)

According to U.S. Food and Drug Administration, this recall involved a device in United States that was produced by Siemens Medical Solutions USA, 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
    Block, beam-shaping, radiation therapy - Product Code IXI
  • Reason
    This correction is being performed to update the safety knob of the siemens brand mmlc (moduleaf) to conform to tie iec 60601-1 safety standard.
  • Action
    The firm, SIEMENS, issued a "Customer Information" letter to its customers. The letter described the product, problem and actions to be taken. Siemens developed a new steel knob that complies with the latest standards; Siemens checked all ModuLeaf mMLC trolleys and if necessary refitted with the safety label and also arranged for an inspection and modification of the customers system- a Release of the safety update UI TH 026/11/S to distribute and hardware update commenced on February 7, 2007 by certified mail. If you have any questions, contact the Regulatory Specialist II at 925-602-8175.


  • Model / Serial
    ModuLeaf, 110V/60Hz, part number 7334043; ModuLeaf, 220V/60Hz, part number 7334050.
  • Product Classification
  • Device Class
  • Implanted device?
  • Distribution
    Worldwide distribution: USA (nationwide) including states of: CO, IA, KY, NJ, OH and TX; and countries of: Algeria, Austria, Belgium, Brazil, China, Egypt, France, Germany, Hungary, India, Italy, Japan, Kuwait, Malaysia, Mexico, P.R., Russian Fed., Saudi Arabia, South Africa, Spain, Turkey, and United Kingdom.
  • Product Description
    Siemens mMLC (ModuLeaf) safety bar and trolley label. || Siemens Medical Solutions USA, Inc. || Concord, CA. || The intended use of the Siemens branded mMLC is an accessory used with the Linear Accelerator systems to deliver x-ray photon and electron radiation for the therapeutic treatment of cancer. This accessory shapes the radiation beam, per the leaf parameters, to minimize the amount of dose to outlying tissue.
  • Manufacturer


  • Manufacturer Address
    Siemens Medical Solutions USA, Inc, 4040 Nelson Ave, Concord CA 94520-1200
  • Source