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U.S. Department of Health and Human Services

Class 2 Device Recall XiO RTP System

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  Class 2 Device Recall XiO RTP System see related information
Date Initiated by Firm December 09, 2008
Date Posted June 15, 2011
Recall Status1 Terminated 3 on April 09, 2014
Recall Number Z-2567-2011
Recall Event ID 58227
510(K)Number K092132  
Product Classification System, planning, radiation therapy treatment - Product Code MUJ
Product XiO Radiation Treatment Planning System, XiO Release 4.3.1 through 4.40.00.

Used to create treatment plans for any cancer patient for who external beam radiation therapy or brachytherapy has been prescribed.
Code Information XiO Release 4.3.1 through 4.40.00. All lot or serial numbers.
Recalling Firm/
Computerized Medical Systems Inc
13723 Riverport Drive
Suite 100
Maryland Heights MO 63043
For Additional Information Contact Christopher Ivicevich
Manufacturer Reason
for Recall
XiO Software: Under certain conditions, when the port shape is altered, dose is not recalculated. The port-change flag is not being set correctly when the port shape is regenerated. The dose distribution will not match the blocking displayed and the mis-match might not be obvious. Monitor Unit calculations will also be based on an incorrect dose distribution. This problem has existed since Re
FDA Determined
Cause 2
Software design
Action Computerized Medical Systems, Inc. sent a "XiO CUSTOMER ADVISORY" letter dated December 8, 2008 to all affected customers. The advisory describes the product, problem, and the actions to be taken. The customers were instructed to set the prompt to "Yes" to avoid the problem from occurring according to written instructions provided in the advisory. This problem has existed since Release 4.3.1 and is expected to be resolved with XiO Release 4.50.00. Questions should be directed to the manufacturer's representative at 408-830-8023.
Quantity in Commerce 784
Distribution Worldwide Distribution-- USA (nationwide) including Puerto Rico and countries of Albania, Algeria, Argentina, Australia, Austria, Azerbaijan, Bahamas, Belgium, Bolivia, Bosnia and Herzegovina, Brazil, Canada, Chile, China, Colombia, Costa Rica, Croatia, Czech Republic, Ecuador, Egypt, El Salvador, Estonia, France, Georgia, Germany, Greece, Guatemala, Hungary, India, Indonesia, Israel, Italy, Japan, Libya, Lithuania, Malaysia, Mexico, Mongolia, Netherlands, New Zealand, Nicaragua, Philippines, Poland, Portugal, Qatar, Russia, Saudi Arabia, Serbia, Singapore, South Africa, South Korea, Spain, Sri Lanka, Sweden, Switzerland, Tajikistan, Thailand, Turkey, Ukraine, United Kingdom, Uruguay, Venezuela, Yemen, and Zimbabwe.
Total Product Life Cycle TPLC Device Report

1 A record in this database is created when a firm initiates a correction or removal action. The record is updated if the FDA identifies a violation and classifies the action as a recall, and it is updated for a final time when the recall is terminated. Learn more about medical device recalls.
2 Per FDA policy, recall cause determinations are subject to modification up to the point of termination of the recall.
3 For details about termination of a recall see Code of Federal Regulations (CFR) Title 21 §7.55.
510(K) Database 510(K)s with Product Code = MUJ and Original Applicant = COMPUTERIZED MEDICAL SYSTEMS, INC.