Acclarent was notified on (b)(6) 2014 of a domestic event that occurred on (b)(6) 2014 during a sinus surgical case when acclarent balloon dilation technology was used.The physician experienced difficulty accessing the sinus while using ultirra balloon catheter with maxillary guide (110) due to tight infundibulum.During the procedure, the ultirra catheter tip detached completely in the patient's nasal cavity.An unknown instrument was used to retrieve the tip.There was no patient injury due to tip detachment.
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