During a cryosurgical procedure the device entered into a purging state unexpectedly.During the time the tip remained frozen and in contact with the patient's eye, and it was not possible to break contact with the eye until the tip had defrosted for fear of causing harm to the pt.It was necessary for the procedure to be halted.The pt was seen in clinic shortly after the event, and it was determined that no damage had occurred as a result.This event occurred in the (b)(6), and has been registered with the (b)(6).
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