Recall of MEVION S250

According to U.S. Food and Drug Administration, this recall involved a device in United States that was produced by Mevion Medical Systems, 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
    System,planning,radiation therapy treatment - Product Code MUJ
  • Reason
    Completing setup without program move complete can cause an isocenter error.
  • Action
    Mevion issued an Important Safety Notice letter on October 31, 2016 to customers. The identified the affected product, problem, mitigation and advisory information. The letter informed customers that Mevion will release and install a software patch that removes the reliance on tracking isocenter changes for the correct reporting of the Couch position to the user displays and to the OIS. For further information


  • Model / Serial
    Serial NUmbers: S250-0001 through S250-0006
  • Product Classification
  • Device Class
  • Implanted device?
  • Distribution
    US Nationwide in the states of FL, MO, NJ and OK
  • Product Description
    MEVION S250 || Product Usage: Proton Radiation Therapy
  • Manufacturer


  • Manufacturer Address
    Mevion Medical Systems, Inc., 300 Foster Street, Littleton MA 01460-2017
  • Manufacturer Parent Company (2017)
  • Source