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A visual and functional inspection was performed on the returned device.The reported difficulty removing the device in the guiding catheter and deflation problem were not confirmed.Production record and corrective and preventive actions (capa) reviews were performed and revealed no indication of a product quality issue.Additionally, a review of the complaint handling database identified no other complaints.The investigation was unable to determine a conclusive cause for the reported difficulties.Factors which may contribute to difficulty removing the device in the guiding catheter include, but are not limited to, manufacturing, balloon not completely deflated, damage to the stent, damage to the guiding catheter, guiding catheter size selection or procedural technique (devices not properly supported or coaxially aligned).Factors that may contribute to deflation problems include, but are not limited to, deflation technique, contrast concentration, contamination in the inflation lumen, damage to the guide wire and/or inflation lumen.In this case, it is possible that the herculink balloon did not have adequate time to fully deflate once the stent was deployed and negative pressure was held, contributing to the reported deflation problem, ultimately causing the reported difficult to remove, however, this cannot be confirmed.There is no indication of a product quality issue with respect to manufacture, design, or labeling; therefore, no product-related corrective action will be implemented in this case.
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