A surgeon reported that during a combined cataract and vitrectomy surgery, the infusion cannula failed to lock into the trocar.After everything had been set up and the cassette had been primed, the surgeon started the surgery by placing the trocar into the eye and then placed the infusion cannula into the trocar.As soon as the infusion pressure was turned on, the infusion cannula popped out of the trocar.In surgeon's opinion, the reason why the infusion cannula could not lock into the trocar was because the silicone layer which covers the base of the infusion cannula was too far forward onto the base of the infusion cannula.A new pak had to be opened and this time the infusion cannula could lock into the trocar.The surgeon could complete the surgery with a delay of twenty minutes.No further information is expected.This is one of four medical device reports being filed for this facility.
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