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U.S. Department of Health and Human Services

Class 2 Device Recall Siemens mMLC (ModuLeaf)

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 Class 2 Recall
Siemens mMLC (ModuLeaf)
see related information
Date Posted March 07, 2012
Recall Status1 Terminated on August 14, 2012
Recall Number Z-1184-2012
Recall Event ID 61237
Premarket Notification
510(K) Number
Product Classification Block, Beam-Shaping, Radiation Therapy - Product Code IXI
Product 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.
Code Information ModuLeaf, 110V/60Hz, part number 7334043; ModuLeaf, 220V/60Hz, part number 7334050.
Recalling Firm/
Siemens Medical Solutions USA, Inc
4040 Nelson Ave
Concord, California 94520-1200
For Additional Information Contact Adrianna Azevedo
Manufacturer Reason
for Recall
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.
FDA Determined
Cause 2
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.
Quantity in Commerce 46 active devices
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.
Total Product Life Cycle TPLC Device Report

1 For details about termination of a recall see Code of Federal Regulations (CFR) Title 21 §7.55
2 Per FDA policy, recall cause determinations are subject to modification up to the point of termination of the recall.
510(K) Database 510(K)s with Product Code = IXI and Original Applicant = MRC SYSTEMS GMBH