FDA Recall Terminated

PTW UNIDOS webline: 1) REF T10023, 2) REF T10022 and 3) REF T10023 Firmware version 2.05. Dosimeter for radiation therapy, diagnostic radiology and health physics.

Recall: Z-2439-2015 · Initiated May 27, 2015

Recall

Recall Number
Z-2439-2015
Event Number
71395
Firm
PTW-Freiburg Lorracher Strasse 7 Freiburg Germany
FEI Number
3007360740
Product Code
IYE
Status
Terminated
Root Cause
Software design
Initiated
May 27, 2015
Posted
August 21, 2015
Terminated
March 31, 2017

Description

PTW UNIDOS webline: 1) REF T10023, 2) REF T10022 and 3) REF T10023 Firmware version 2.05. Dosimeter for radiation therapy, diagnostic radiology and health physics.

Reason

In some cases, especially with high dose-per-pulse-rates typical for particle (specifically proton) therapy, measuring errors can result. Individual measurement intervals can be lost that are not visible to the user when there is a high dose-per-pulse rate resulting in a too-low dose being displayed on the monitor. This could result in a radiation over-exposure.

Action

PTW issues Urgent Safety Notice due to an error with firmware version 2.05 of the UNIDOS webline in some cases, especially with the high dose-per-pulse-rates typical for particle therapy, measuring errors can result.

Distribution

Distributed in CA, MI, MA, NC, NJ, NY, PA, TN, TX, PA & WI.

Quantity

242 firmwares