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Bronchoscopic visualization system power supplies have defective semiconductor components that may fail unexpectedly, which could result in an aborted procedure since it is a non recoverable failure. Manual removal of the bronchoscope when the system is not functioning can increase the chance of injury to the tissues of the lung as the scope is withdrawn including the possibility of pneumothorax.
Gradient coils for certain MR systems (see affected product list in this letter), under specific conditions, can produce elevated acoustic noise during scanning.