The evaluation of the returned picture shows that the support arm broke at the bracket.The support arm bracket is a casting and it most probably developed a crack at an earlier occasion either by overloading or an impact exceeding the limits stated in the installation instructions.If the support arm would break during patient treatment, it could in worst-case lead to extubation and/or injury.Previous investigations led to a redesign and a change of the manufacturing process in order to obtain a higher mechanical strength of the support arm.This change was implemented in production during september 2009.The age of the support arm is unknown, but the connected ventilator is manufactured in the year 2006.The reported support arm is most likely manufactured during the same time period, before the implementation of the manufacturing change.
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