FDA Recall Terminated

Siemens Mevatron K-2 Medical Charged-Particle Radiation Therapy System; (Interlock #51 Jaw Field Position) Model Number: 1940753, Siemens Medical Solutions, Concord, CA 94520

Recall: Z-0685-2008 · Initiated August 7, 2007

Recall

Recall Number
Z-0685-2008
Event Number
46157
Firm
Siemens Medical Solutions USA, Inc
FEI Number
2937457
Product Code
IYE
Status
Terminated
Root Cause
Device Design
Initiated
August 7, 2007
Posted
February 14, 2008
Terminated
December 1, 2010
Address
4040 Nelson Ave, Concord, CA, 94520-1200

Description

Siemens Mevatron K-2 Medical Charged-Particle Radiation Therapy System; (Interlock #51 Jaw Field Position) Model Number: 1940753, Siemens Medical Solutions, Concord, CA 94520

Reason

Incorrect field size -- Products manufactured prior to 1999 may experience jaw field size errors during interlock resulting in potential mistreatment if a light field check is not performed. This problem is present in machines with serial numbers less than 3094, as they do not contain redundant sensors for jaw position.

Action

The firm has sent consignees a Customer Safety Advisory Notice on August 7, 2007 informing them that a misplacement of the X and/or Y jaws can occur if interlock #51 Jaw Field Position is asserted and then cleared with the left-hand key rest. The firm recommends that if an interlock issue is encountered tha treatment of the patient be discontined until this issue is resolved.

Distribution

Worldwide Distribution

Quantity

59 units