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MEVION S250, used for proton radiation therapy.

FDA device recall Z-0588-2015 · posted 2014-12-12 · Terminated

Recall details

Recalling firm
Mevion Medical Systems, Inc.
Reason for recall
Software defect that causes an incorrect dose compensation function to be applied to the internal dose ionization chamber when either pressure or temperature sensor malfunction. This could result in an incorrect dose delivery of no more than 5%.
Action taken
Mevion Medical Systems sent an Important Safety Notice letter to the affected customer. The letter identified the affected product, problem and actions to be taken. A software update addressing the issue will be provided to the customer on or about December 5, 2014. For questions or concerns, email lbouchet@mevion.com or call 978-540-1555.
Root cause
Software design
Status
Terminated
Product code
LHN
Quantity affected
1
Distribution
US Distribution in the state of MO
Date initiated
2014-11-10
Date posted
2014-12-12
Date terminated
2015-03-18
Location
Littleton, MA

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Related 510(k) clearances

RecordFirmDate
S-250 PROTON BEAM RADIATION THERAPY SYSTEM (K120676)Mevion Medical Systems2012-06-04