The ventilator became damaged and was repaired and cleared for clinical use.The ventilator operates in a field of up to 20mt (200 gauss) for tunnel scanners and up to 10mt (100 gauss) for open scanners.Before using the ventilator in the mr environment, conditions must be met, including locking the wheels and placing the ventilator outside the 200 gauss (20mt) safety line, which must be marked around the mr scanner.These conditions are stated in the declaration for the use of the ventilator in the mr environment and are included as part of the "mr environment agreement".According to received information, the safety line was marked around the mr scanner and the ventilator was moved without the brakes locked.Our conclusion is that the incident was caused by the user not following the requirements for use of the ventilator in mr environment.
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