Manufacturing review: a manufacturing review was conducted and there was nothing found to indicate there was a manufacturing related cause for this event.Investigation summary: the device was returned for evaluation.A visual inspection found that the balloon was stuck in an unbranded sheath.The distal tip of the sheath was noted to be buckled, indicating retraction issues.Bunching was also noted to the balloon, which are consistent with retraction issues.In addition, stretching and kinking was noted to the catheter shaft near the proximal end of the balloon, also indicating retraction issues.Therefore, the investigation is confirmed for the identified retraction issues through the sheath.However, the investigation is inconclusive for the reported deflation issues as the balloon was unable to be functionally tested due to the balloon damage.Per the reported event details, it is likely that the deflation issue led to the retraction issues through the sheath.However, the definite root cause for the reported deflation issue and identified retraction issue could not be determined based upon available information.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.(expiration date: 01/2022).
|