Siemens Medical Solutions USA, Inc MEVATRON M2/Primus Mid-Energy Model #01940035, MEVATRON PRIMART #05500371, MEVATRON KD-2 #08515520, MEVATRON KD2 #01940753, MEVATRON M-2 6740 #09401506, MEVATRON MD-2 #09401654, MEVATRON MDX-2 #09401746 with Digital LINAC Systems Control Console Software Versions 6, 7, 9, 13 Recall
Check Your Product
According to the U.S. Food and Drug Administration (FDA)
Product
MEVATRON M2/Primus Mid-Energy Model #01940035, MEVATRON PRIMART #05500371, MEVATRON KD-2 #08515520, MEVATRON KD2 #01940753, MEVATRON M-2 6740 #09401506, MEVATRON MD-2 #09401654, MEVATRON MDX-2 #09401746 with Digital LINAC Systems Control Console Software Versions 6, 7, 9, 13
Brand
Siemens Medical Solutions USA, Inc
Lot Codes / Batch Numbers
Serial Numbers 2507, 2516, 2596, 2689, 2818, 2962, 3013, 3103, 3089, 3136, 2855, 3296, 3397, 3591, 3629, 3639, 3644, 3702, 3873, 3939, 4018, 3986, 70-4146, 70-4347, 70-4363, 5092, 5114, 5523, 70-4287, 2045, 2067, 2125
Products Sold
Serial Numbers 2507, 2516, 2596, 2689, 2818, 2962, 3013, 3103, 3089, 3136, 2855, 3296, 3397, 3591, 3629, 3639, 3644, 3702, 3873, 3939, 4018, 3986, 70-4146, 70-4347, 70-4363, 5092, 5114, 5523, 70-4287, 2045, 2067, 2125
Siemens Medical Solutions USA, Inc is recalling MEVATRON M2/Primus Mid-Energy Model #01940035, MEVATRON PRIMART #05500371, MEVATRON KD-2 #08515520, due to Potential safety issue with the dose monitoring system safety interlocks which could result in a 10-20% overdose of radiation therapy.. Based on FDA medical device recall database.
Summary derived from FDA notice
Reason for Recall
As stated by FDA
Potential safety issue with the dose monitoring system safety interlocks which could result in a 10-20% overdose of radiation therapy.
Recommended Action
Per FDA guidance
A Customer Safety Advisory Notice was sent to all affected consignees on 2/18/2020 via Adobe Mega Sign or USPS certified mail. The notice describes the interlock scenarios, provides user instructions, and warns the user of potential risks. The interlock scenarios are as follows: MONITOR 2: Monitor 2 total dose coincidence. Intent: This interlock is intended to prevent overdose when the primary dose monitory system fails to complete the treatment. TREATMENT TIME: Preset treatment time coincidence with actual treatment time. Intent: This interlock is intended to prevent overdose if preset treatment time is exceeded. MONITOR SYNC (SW): Excessive accumulated dose deviation detected between the primary and the secondary dose monitoring systems. Intent: This interlock is intended to prevent patient mistreatment due to the inaccurate monitoring of delivered dose. When one or more of the above described interlocks occur, it may be assumed that there is an error in the dose monitor system.The Consumer Safety Advisory Notice states that the Operator's Manual Instructions Update document should be added to the product's manual and all users should be informed of the issues.
Verify this information on the official source
For complete details and official instructions, check the U.S. Food and Drug Administration (FDA) directly.
View official FDA recall noticeDistribution
As reported by FDA
AL, CA, DE, FL, GA, IL, IN, IA, KY, LA, ME, MD, MA, MI, MN, MS, MO, NE, NV, NJ, NY, NC, OH, OK, PA, RI, SC, SD, TN, TX, UT, VA, WV, WI, WY, PR
Page updated: Jan 10, 2026