FDA Medical Device Recalls (openFDA)
Computerized Medical Systems Inc: XiO Radiation Treatment Planning System, XiO Release 4.3.0 through 4.50.00. Used to create treatment plans for any cancer patient for who external beam radiation therapy or brachytherapy has been prescribed.
- Recall number
- Z-2568-2011
- Recalling firm
- Computerized Medical Systems Inc
- Product
- XiO Radiation Treatment Planning System, XiO Release 4.3.0 through 4.50.00. Used to create treatment plans for any cancer patient for who external beam radiation therapy or brachytherapy has been prescribed.
- Status
- Terminated
- Initiated
- 2009-05-13
- Posted
- 2011-06-15
- Terminated
- 2014-04-09
- Reason
- In XiO, when the beams are renumbered, it is possible to get into a state where the dose displayed for a beam does not match the beam placement on the patient. This can occur when dose is calculated, beams are renumbered, and the dose is re-summed only.
- Root cause
- Software design
- Action
- Computerized Medical Systems, Inc. sent an CUSTOMER ADVISORY letter dated May 2009, to all affected customers. The letter identified the product, the problem, and the action needed to be taken by the customer. Computerized Medical Systems, Inc have created "patches" to resolve the problem. A User Notice was sent in March 2011, to all users still using the affected software notifying them of the updated software available to correct the problem. This letter was sent by US Mail but no return receipt was included. For further questions, please call (408) 380-8023.
- Quantity
- 1116
- Distribution
- Worldwide Distribution -- (USA) nationwide Distribution, including Puerto Rico, and countries of Albania, Algeria, Argentina, Australia, Austria, Azerbaijan, Bahamas, Belgium, Bolivia, Bosnia, Herzegovina, Brazil, Canada, Chile, China, Colombia, Costa Rica, Croatia, Cyprus, Czech Republic, Ecuador, Egypt, El Salvador, Estonia, France, Georgia, Germany, Greece, Guatemala, Hungary, India, Indonesia, Ireland, Israel, Italy, Japan, Kuwait, Libya, Lithuania, Malaysia, Malta, Mexico, Mongolia, Netherlands, New Zealand, Nicaragua, Philippines, Poland, Portugal, Qatar, Russia, Saudi Arabia, Serbia, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Sri Lanka, Sweden, Switzerland, Taiwan, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, Uruguay, Venezuela, Yemen, and Zimbabwe.
- Lot, serial or model codes
- XiO Release 4.3.0 through 4.50.00
- 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