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As reported, a 2.5mm x 6cm saber percutaneous transluminal angioplasty (pta) dilatation catheter would not flush, and the guidewire would not pass through the balloon wire port.The balloon was partially loaded.The issue occurred during prep.A non-cordis balloon was used as replacement.There was no reported patient injury.The device was being used for peripheral vascular intervention.The device was stored and prepped according to the instructions for use (ifu).There was no difficulty removing the product from the hoop, removing the protective balloon cover, the stylet, or any of the sterile packaging components.The device did not kink at any time during use.The wire was wiped with a wet telfa/gauze after the wire was removed and before the wire was loaded on.It is not known if the obstruction was due to material that could possibly be injected into the patient.The device was returned for evaluation.A non-sterile saber 2.5mm x 6cm 150 was received coiled inside of a clear plastic bag.The device was unpacked to proceed with the product evaluation.The unit was thoroughly inspected observing that it does not present any damages or anomalies.The balloon was received deflated.Functional testing was performed using an inflator/deflator device attached to the inflation port and positive pressure was applied with the purpose of reaching the rated burst pressure.However, during testing a leakage from the guidewire lumen was confirmed as a flow of water exited through the distal tip of the device.The origin of the filtration was located 17.5cm away from the distal tip.A cordis guidewire was inserted, and it was noted to have exited through the guidewire lumen and into the inflation lumen.It appears the presence of the white material in the guidewire lumen caused a blockage that caused the guidewire to deviate resulting in the puncture of the internal wall of the guidewire lumen.Additionally, the tack seal was inspected and confirmed this was not an attributable cause to the leakage observed.The white material noted inside the guidewire lumen was sent for ftir analysis and results found the soft material extracted corresponds to polyethylene material.A product history record (phr) review of lot 82239705 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.The reported ¿guidewire lumen ¿ obstructed¿ was confirmed via device analysis.However, the exact cause cannot be determined.During analysis the material noted inside the guidewire lumen was noted to be polyethylene, the same material that is comprised of the guidewire lumen inner body.It is likely the accordioned piece was sheared off at some point due to the interaction of the lining with a sharp object.Several factors are being considered and further investigation is required to find a definitive root cause.Therefore, based on the information available for review, it is difficult to draw a clinical conclusion between the device and the events reported as further investigation is warranted.According to the warnings in the safety information in the instructions for use, ¿flush all devices entering the vascular system with sterile heparinized saline or similar isotonic solution.Prior to use, ensure all devices have been flushed and air is removed from the system according to standard medical practice.Failure to do so could result in air entering the vascular system.¿ the phr review does not suggest a manufacturing related issue; however, product analysis suggests that the event experienced by the customer needs further investigation to determine root cause.Therefore, an investigation has been initiated.
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As reported, a 2.5mm x 6cm saber percutaneous transluminal angioplasty (pta) dilatation catheter would not flush, and the guidewire would not pass through the balloon wire port.The balloon was partially loaded.The issue occurred during prep.A non-cordis balloon was used as replacement.There was no reported patient injury.The device was being used for peripheral vascular intervention.The device was stored, and prepped according to the instructions for use (ifu).There was no difficulty removing the product from the hoop or removing the protective balloon cover nor difficulty removing the stylet or any of the sterile packaging components.The device did not kink at any time during use.The wire was wiped with a wet telfa/gauze after the wire was removed and before the wire was loaded on.It is not known if the obstruction was due to material that could possibly be injected into the patient.The device was returned for evaluation.The product evaluation identified polyethylene particles as the cause of the obstruction.
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