(1)Start-up problem: Intermittently at start-up of the system, the communication of the control unit that manages the movement of the stand is not established; (2) Emergency stop recovery problem-warm restart is not executed correctly and movement functionality is not available
Stems may have an undersized spigot bore diameter therefore separating the proximal body from the stem may not be possible without surgical delay and/or bone damage
Proton Therapy System (PTS) software can be started in the clinical environment (clinical user) while some processes are still running in the test environment (tcs user). Initiating the startup of the clinical processes in the environment is not prevented even if some processes of the test environment (tcs) are still running. It may lead to situations where the system is using test processes without notifying the clinical user. If the versions of the processes are different between both environments, this could have an impact on patient treatments.
Stems may have an undersized spigot bore diameter therefore separating the proximal body from the stem may not be possible without surgical delay and/or bone damage
Abnormal images such as horizontal stripes may be displayed and recovery may not not be possible by restarting the system. The worst case scenario is an operator who is working without a workable image may remove a catheter from the patient's blood vessel and damage the blood vessel.
When a measurement with a PTW detector array is performed with the software BeamAdjust 2.2 or VeriSoft 8.0, a measurement error can occur under specific conditions. This error can lead to a too-low or too-high measured absolute dose which affects patient plan verification results
Customers reported that the device jaws were difficult to open or would not open following application on tissue. Use of a device with this potential assembly issue could result in the potential for bleeding, unintended tissue injury or loss, and delay in treatment while an alternate device is obtained.
A potential chemical degradation of Sevoflurane by Lewis acids (metal oxides and metal halides) has been discovered that may result in inhalation and/or skin exposure of hydrogen fluoride.
Stems may have an undersized spigot bore diameter therefore separating the proximal body from the stem may not be possible without surgical delay and/or bone damage