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A visual and functional inspection was performed on the returned device.The reported split, cut or torn material and leak/splash were confirmed.Production record and corrective and preventative actions (capa) reviews were performed and revealed no indication of a product quality issue.Additionally, a query of the complaint handling database for the reported lot revealed there is no indication of a lot specific issue.Based on the information received and analysis of the returned device, a definitive cause for the reported difficulties could not be determined; however, potential factors that may contribute to split, cut or torn material include, but are not limited to, interaction with accessory devices, anatomical conditions, mishandling during manufacturing, during receiving/storage at the account, and/or during removal from packaging, preparation of the device and/or protective sheath/stylet removal.Factors that may contribute to a leak include, but are not limited to, inflation technique, contrast concentration, loose connection with the indeflator, contamination in the inflation lumen or damage to the balloon, guide wire and/or inflation lumen.The scanning electron microscopy (sem) report suggests the balloon rupture may be attributed to mechanical damage to the outer surface.Longitudinal lines of damage were documented leading to the middle of the rupture on the inner surface.Additionally, mechanical damage was documented adjacent to the rupture on the inner surface.Pinch marks were observed near the tear/rupture area (which aligns with mechanical damage from the exterior, adjacent to the rupture area).This could not have been caused by any manufacturing related step, as the balloons are 100% inspected twice during the manufacturing process (wet leak, dry leak), followed by a leak test.In this case, it is possible the device may have interacted with accessory devices during handling/preparation of the device, resulting in the reported split, cut or torn material and observed peeled/pinched balloon material, ultimately causing the reported leak/splash; however, this cannot be confirmed.Based on the results of the complaint investigation, there is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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