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After further review of additional information received the following sections have been updated accordingly: b4, g3, g6, h1, h2, h3, h6, and h10.Complaint conclusion: as reported, the introducer sleeve covering the balloon of a 3mm x 8cm saber percutaneous transluminal angioplasty (pta) balloon catheter would not come off during preparation.A new 3mm x 8cm saber pta balloon catheter was used to complete the procedure.The initial saber pta balloon catheter was not used in the patient and there were no reported patient injuries.Additional information was requested but was not provided.A non-sterile ¿saber 3mm8cm 150¿ was received for product analysis.Per visual analysis, the balloon and the wire lumen were received with the distal section separated.The separated pieces were not received for analysis.No other outstanding details were observed on the returned product.Per microscopic analysis, the separated area was inspected with a vision system observing that both edges presented evidence of elongations, scratches, and plastic deformation.The elongations, scratches, and plastic deformation found on the material are commonly associated with separations caused by material tensile overload.Therefore, it is likely that the device was induced to a tensile force that exceeded the material¿s yield strength prior to the separation.No other anomalies were observed during the evaluation.Scanning electron microscopy (sem) analysis was not performed because the damages associated with the separation were visible with the magnification obtained with the vision system.The product history record (phr) review of lot 82275984 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.The reported event of ¿packaging/pouch/box-removal difficulty protective balloon cover¿ could not be confirmed as the protective balloon cover was not returned for analysis.However, the device was received in a condition of ¿balloon-separated¿ since the distal section of the balloon and balloon inner wire was separated from the catheter.The exact cause of the issue experienced by the customer could not be determined during analysis.Based on the limited information available for review and product analysis, it is not possible to determine what factors may have led to the reported issue removing the balloon cover since it was not received for analysis.However, it is likely that handling factors during removal of the balloon cover contributed to the received condition of the balloon separation as evidenced by the elongations, scratches, and plastic deformation found at the area of separation.The elongations, scratches, and plastic deformation found on the material are commonly associated with separations caused by material tensile overload.Therefore, it is likely that the device was induced to a tensile force that exceeded the material¿s yield strength prior to the separation.According to the instructions for use (ifu), which is not intended to mitigate risk, the preparation stage states, ¿attach a 3-way stopcock to the inflation port, which is marked ¿balloon¿.Attach a partially filled syringe with heparinized saline to the stopcock, open the stopcock to the balloon and induce negative pressure.Hold the syringe and proximal end of the catheter above the distal end of the catheter, and hold the balloon vertically with the balloon tip pointing down.While maintaining negative pressure close the stopcock to the inflation port.Remove the syringe and purge the air.To ensure air contained in the balloon and inflation lumen is removed, apply negative pressure twice as instructed and repeat steps 2-4.Without twisting, slide the forming tube off the balloon.¿ according to the warnings in the safety information in the ifu, ¿prior to angioplasty, the catheter should be examined to verify functionality and integrity, and ensure that its size and shape are suitable for the specific procedure for which it is to be used.Do not use if product damage is suspected or evident.Proper functioning of the catheter depends on its integrity.Care should be used when handling the catheter.Damage may result from kinking, stretching, or forceful wiping of the catheter.Forceful handling can result in catheter separation and the subsequent need to use a snare or other medical interventional techniques to retrieve the pieces.¿ neither the product analysis, nor the phr review suggest that the failures experienced could be related to the design or manufacturing process of the unit.Therefore, no corrective/preventative actions will be taken at this time.
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