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SIEMENS brand ONCOR series Linear Accelerator Linac systems with component: any photon unflat beam option(Multiple X fea

FDA device recall Z-0437-2014 · posted 2013-12-03 · Terminated

Recall details

Recalling firm
Siemens Medical Solutions USA, Inc
Reason for recall
A safety risk regarding a potentially existing dark current radiation phenomenon on the Linear Accelerator (LINAC) in combination with IMRT or mARC (rotational IMRT) treatments using unflat (flattening filter free) beams. In case there are many long periods of field shape changes in a treatment plan, the dose due to dark current radiation may sum up to a significant value.
Action taken
Siemens sent an Urgent Medical Device Correction letter dated October 23, 2013 including the release of update instruction TH024/13/S to all affected customers. The letter identified the product, the problem, and the action to be taken by the customer.
Root cause
Device Design
Status
Terminated
Product code
IYE
Quantity affected
3 units
Distribution
Worldwide Distribution: USA (nationwide) including states of: FL, NC, NY, PA, TN, UT, and WI; and countries of: Angola, Brazil, Canada, P.R. China, Germany, India, Japan, Republic Korea, Poland, and T
Date initiated
2013-10-23
Date posted
2013-12-03
Date terminated
2014-01-22
Location
Martinez, CA

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Related 510(k) clearances

RecordFirmDate
ONCOR EXPRESSION (K060226)Siemens Medical Solutions USA, Inc.2006-03-15