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U.S. Department of Health and Human Services

Class 2 Device Recall CyberKnife Treatment Planning System

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 Class 2 Recall
CyberKnife Treatment Planning System
see related information
Date Posted February 01, 2011
Recall Status1 Terminated on February 11, 2011
Recall Number Z-1008-2011
Recall Event ID 54535
Premarket Notification
510(K) Number
Product Classification System,Planning,Radiation Therapy Treatment - Product Code MUJ
Product CyberKnife Treatment Planning System, a subsystem of the CyberKnife Robotic Radiosurgery System, with MultiPlan Treatment Planning System Software version 3.5 Medical charged-particle radiation therapy system, intended for treatment planning and image-guided stereotactic radiosurgery and precision radiotherapy of lesions, tumors and conditions anywhere in the body when radiation treatment is indicated.
Code Information All systems with multiplan tratment planning system software version 3.5
Recalling Firm/
Accuray Inc
1310 Chesapeake Ter
Sunnyvale, California 94089-1100
Manufacturer Reason
for Recall
If electron density values are left empty, the calculation of radiation dose in a patient will be modeled as air-like density material rather than correct density. A plan may be created and saved, thus creating the risk of mistreatment.
FDA Determined
Cause 2
TRAINING: Employee Error
Action The firm, Accuray, sent an "URGENT DEVICE CORRECTION" letter dated December 29, 2009, to all customers. The letter described the product, problem, and action to be taken by the customers. The customers were instructed to verify correctness of the CT number to relative electron density and Mass Density Calibration curves. Note: A patch is being developed to address this issue. Accuray Customer Support will contact the customers regarding further resolution. If you have any questions or concerns regarding this issue, please contact Accuray Customer Support at +1-877-668-8667 (USA) or +1-408-716-4700 (non USA) or by email: customersupport@accuray.com.
Quantity in Commerce 71 units are subject to this action
Distribution Worldwide Distribution: USA and countries including: Canada, Turkey, India, Italy, France, the Netherlands, the UK, India, Spain, Greece, Saudi Arabia, Switzerland, Germany and China.
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 = MUJ and Original Applicant = ACCURAY, INC.