FDA Medical Device Recalls (openFDA)
Computerized Medical Systems Inc: XiO Radiation Treatment Planning System, XiO Release 4.3.0 and above Used to create treatment plans for any cancer patient for who external beam radiation therapy or brachytherapy has been prescribed.
- Recall number
- Z-2579-2011
- Recalling firm
- Computerized Medical Systems Inc
- Product
- XiO Radiation Treatment Planning System, XiO Release 4.3.0 and above Used to create treatment plans for any cancer patient for who external beam radiation therapy or brachytherapy has been prescribed.
- Status
- Terminated
- Initiated
- 2010-10-03
- Posted
- 2011-06-16
- Terminated
- 2014-04-03
- Reason
- XiO: When the beam template is recalled, XiO prematurely initiates a dose calculation, re-snaps the MLC or Port to the structure of the current patient , but then fails to re-calculate dose for the new MLC or Port position. If no subsequent change is made to force a dose recalculation, XiO will display the dose from the original MLC/Port shape dose instead of the dose from the re-snapped MLC/Port
- Root cause
- Software design
- Action
- The firm, Elekta CMS Software, sent an "IMPORTANT SAFETY NOTICE" dated September 14, 2010 to its affected customers. The notice describes the product, problem and actions to be taken. The customers were instructed to distribute this notice to any all users of CMS software at their organization who are potentially affected by this issue, and complete and return the attached postcard to confirm receipt of the Safety Notice. The notice also states that this problem has existed since the XiO Release 4.3.0 and is resolved in the XiO release 4.26.00. Elekta will notify the customers when this solution is available. If you have any questions, please call 314-993-0003 or toll free 800-878-4267.
- Quantity
- 1208
- Distribution
- Worldwide distribution: USA (nationwide) including Puerto Rico and countries of: Albania, Algeria, Argentina, Australia, Austria, Azerbaijan, Bahamas, Belarus, Belgium, Bolivia, Bosnia and Herzegovina, Brazil, Canada, Chile, China, Colombia, Costa Rica, Croatia, Czech Republic, Ecuador, Egypt, El Salvador, Estonia, Finland, France, Georgia, Germany, Greece, Guatemala, Hong Kong, Hungary, India, Indonesia, Ireland, Israel, Italy, Japan, Kuwait, Latvia, Libya, Lithuania, Malaysia, Malta, Mexico, Mongolia, Morocco, .Netherlands, New Zealand, Nicaragua, Philippines, Poland, Portugal, Qatar, Romania, Russia, Saudi Arabia, Serbia, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Sri Lanka, Suriname, Switzerland, Taiwan, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, Uruguay, Venezuela, Yemen, and Zimbabwe.
- Lot, serial or model codes
- XiO Release 4.30. and above
- 510(k) numbers
- ["K092132"]
- PMA numbers
- not on file
- Product code
- MUJ
- Firm FEI
- 1937649
- Firm city
- Maryland Heights
- Firm state
- MO
- Firm country
- not on file
Where this comes from
- Register
- FDA Medical Device Recalls (openFDA)
- Publisher
- U.S. Food and Drug Administration (openFDA)
- File
- device-recall-0001-of-0001.json.zip
- sha256
- b87518bfe2e8
- Size
- 288210821 bytes
- Published
- 2026-09-28
- Read
- 2026-09-29T08:25:23.626Z
- Source file
- Source file retained · verify
- Refresh due
- 2026-10-06
Unless otherwise noted, the content, data, documentation, code, and related materials on openFDA is public domain and made available with a Creative Commons CC0 1.0 Universal dedication.
Cite as
FDA Medical Device Recalls (openFDA) (U.S. Food and Drug Administration (openFDA)), device-recall-0001-of-0001.json.zip, sha256 b87518bfe2e8, published 2026-09-28