ClearanceBrief
Recall Z-0554-2008 ยท IYE Accelerator, Linear, Medical

Varian Medical Systems Inc

Varian Real-Time Position Management System (RPM), A Respiratory Gating System; Version 1.7.3, All Models; Varian Medical Systems, Palo Alto, CA 94304

DateJan 29, 2008 (initiated Sep 26, 2007)
StatusTerminated
ReasonErroneously Resetting: RPM System version 1.7.3, software failure can occur that affects the gated radiotherapy treatment when phase-based gating is used. RPM 1.7 erroneously resets the phase-based gating thresholds to system default during the treatment session, if the user accesses the Session options during the treatment session. This can lead to difference between the planned and delivered
Root causeSoftware design
ActionVarian sent an Urgent Medical Device Correction letter on September 26, 2007, to all its direct consignees, informing them that the RPM version 1.7 may reset the phase thresholds if Sessions options are accessed during treatment. A Service Representative will be scheduling a visit to user site to perform the modification requested to address the problem, when a corrected software version is available.
Quantity59 units
DistributionWorldwide including countries of: Ireland, Italy, Spain, UK, Denmark, Finland, France, and Canada
FDA recordOpen on fda.gov

510(k) clearances named in this recall

K063270RPM RESPIRATORY GATING SYSTEM
Varian Medical Systems, Inc., Dec 14, 2006