FDA Medical Device Recalls (openFDA)
Computerized Medical Systems Inc: XiO Radiation Treatment Planning System. XiO Release 4.50.00 and above Used to create treatment plans for any cancer patient for who external beam radiation therapy of brachytherapy has been prescribed.
- Recall number
- Z-2582-2011
- Recalling firm
- Computerized Medical Systems Inc
- Product
- XiO Radiation Treatment Planning System. XiO Release 4.50.00 and above Used to create treatment plans for any cancer patient for who external beam radiation therapy of brachytherapy has been prescribed.
- Status
- Terminated
- Initiated
- 2010-11-16
- Posted
- 2011-06-17
- Terminated
- 2014-04-03
- Reason
- XiO: When a new electron beam is added to a plan, the calculation Algorithm is set to Pencil Beam, and an Aperture is added to the beam, the user can select Port-Port Properties and edit the Material Thickness values. If the algorithm is then changed to Monte Carlo, the calculation will proceed and the user is not warned the Material/Thickness values just entered are not used in the dose calculati
- Root cause
- Other
- Action
- Elekta CMS Software drafted a User Notice which explains the reason for correction, the clinical impact, and the workaround method. The User Notice was distributed to all affected sites in November 2010. The issue will be resolved in the XiO Release 4.70.00, expected to be available in July 2011.
- Quantity
- 556
- Distribution
- Worldwide Distribution - USA (nationwide, Washington, DC and Puerto Rico and the countries of Albania, Algeria, Australia, Austria, Bahamas, Belarus, Belgium, Brazil, Canada, Chile, China,Croatia, Cyrus, Czech Republic, Ecuador, Egypt, Estonia, Finland, France, Germany, Greece, Guatemala, Hong Kong, Hungary, India, Ireland, Israel, Italy, Japan, Kuwait, Latvia, Libya, Lithuania, Malaysia, Malta, Mexico, Morocco, Netherlands, New Zealand, Phillipines,Poland, Portugal, Romoania, Russia, Serbia, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Suriname, Switzerland, Taiwan, Thailand, Turkey, Turmenistan, Ukraine, United Kingdom, and Vietnam
- Lot, serial or model codes
- Release 4.50 and higher
- 510(k) numbers
- ["K102216"]
- 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