ClearanceBrief
Recall Z-1644-2012 ยท MUJ System, Planning, Radiation Therapy Treatment

Computerized Medical Systems Inc

XiO Radiation Treatment Planning System, Versions 4.30.00-4.64.00. Used to create treatment plans for any cancer patient for whom external beam radiation therapy or brachytherapy has been prescribed. The system will calculate and display, both on-screen and in hard-copy, either two- or three-dimensional radiation dose distributions within a patient for a given treatment plan set-up.

DateMay 22, 2012 (initiated Apr 30, 2012)
StatusTerminated
ReasonXiO will underestimate the dose delivered when the closed leaf gap is set to 0mm on XiO and a value other than 0mm is set on the accelerator.
Root causeSoftware design
ActionComputerized Medical Systems, Inc. sent an Important Safety Notice the week of April 30, 2012, by regional support managers via e-mail, fax, or regular mail to all affected customers. The letter identified the product, the problem, and the action to be taken by the customer. North American customers were instructed to go to www.elekta.com, select the SupportPlus Login at the top of the page, enter their portal, select Downloads/Updates to download the latest patches. For Customers outside North America, go to www.elekta.com, select the SOFTWARE button on the left, Treatment Planning Software
Quantity1,652 sites received the versions
DistributionWorldwide Distribution - USA (nationwide) and the country of Canada
FDA recordOpen on fda.gov

510(k) clearances named in this recall

K102216XIO RTP SYSTEM
Computerized Medical Systems, Inc., Oct 1, 2010