Manufacturing review: a complete manufacturing review could not be conducted, as the lot number was not reported for this device.Investigation summary: a segment of the device was returned for evaluation.A visual inspection found a complete detachment of the inner guidewire lumen as well as a complete detachment of the balloon at a complete compound balloon rupture.Therefore, the investigation is confirmed for balloon and catheter detachments, as well as for a compound balloon rupture.The returned portion of the balloon was still attached at the distal balloon joint.However, the balloon material was returned prolapsed over the distal tip.Based on the prolapsed balloon material and detached components, the investigation is confirmed for retraction issues.It is likely that the rupture contributed to the identified retraction issues and detachments.However, the definitive root cause for the identified issues could not be determined based on the 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.
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