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Manufacturing review: the device history records have been reviewed and this lot met all release criteria.There was nothing found to indicate there was a manufacturing related cause for this event.This is the only complaint reported to date for this lot number and failure mode.Investigation summary: the device was returned for evaluation; the user's locking flow switch was also returned.The device was prepped per the instructions for use, and inflated with a 10ml syringe.The user's locking flow switch was also used during functional testing, and no issues were identified locking the device in the inflated position.The device was deflated within the specified time constraints, without any issues.Therefore, the investigation is unconfirmed for the reported deflation issue.The definitive root cause for the reported deflation issue could not be determined based upon available information.It is unknown whether procedural issues contributed to the event.Labeling review: the review of the ifu (instructions for use), indications, warnings, precautions, cautions, possible complications, and contraindications showed that the product labeling is adequate.
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