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As reported, when the filling balloon of an aviator plus.014 6.0x20 142cm percutaneous transluminal angioplasty (pta) balloon catheter was deflated, it was found to be difficult to deflate, and it took a long time to remove it.The withdrawal difficulty was encountered when withdrawing from the guide/sheath.Once it was removed from the guide it was noticed that the delivery rod was kinked.There was no reported patient injury.The aviator plus was used by the surgeon to pre-expand the lesion after an angioguard was released into place.The intended procedure was reported to be balloon dilation of the left internal carotid artery plus stenting.The lesion calcification was moderate, with severe tortuosity and seventy per-cent stenosis.The device was not used for a total chronic occlusion (cto).There was neither difficulty removing the product from the hoop, nor difficulty removing the protective balloon cover.There was no difficulty removing the stylet or any of the sterile packaging components.No kinks or other damages were noted prior to inserting the the product into the patient.The device prepped normally maintaining negative pressure.The same indeflator was successfully used with other devices.There was no resistance/friction while inserting the balloon through the rotating hemostatic valve nor resistance/friction while inserting the balloon through the guide catheter.There was a little difficulty advancing the balloon catheter through the vessel as well as crossing the lesion.The catheter was in acute bend.The plunger was not depress into the syringe/indeflator when trying to inflate.The user was not unable to to depress the plunger into the syringe/indeflator when trying to inflate.The balloon inflated normally.There was no leakage of contrast noted prior to the balloon being filled.The maximum inflation pressure was 14 atmospheres (atm).Despite the reported slow deflation, the balloon did fully deflate.The product was removed intact (in one piece) from the patient.The balloon dilation was completed, the follow-up procedure was done normally.The device is expected to be returned for evaluation.
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As reported, when the filling balloon of an aviator plus.014 6.0x20 142cm percutaneous transluminal angioplasty (pta) balloon catheter was deflated, it was found to be difficult to deflate, and it took a long time to remove it.The withdrawal difficulty was encountered when withdrawing from the guide/sheath.Once it was removed from the guide it was noticed that the delivery rod was kinked.There was no reported patient injury.The aviator plus was used by the surgeon to pre-expand the lesion after an angioguard was released into place.The intended procedure was reported to be balloon dilation of the left internal carotid artery plus stenting.The lesion calcification was moderate, with severe tortuosity and 70% stenosis.The device was not used for a total chronic occlusion (cto).There was no difficulty removing the product from the hoop, removing the protective balloon cover, no difficulty removing the stylet or any of the sterile packaging components.No kinks or other damages were noted prior to inserting the product into the patient.The device prepped normally by maintaining negative pressure.The same indeflator was successfully used with other devices.There was no resistance/friction while inserting the balloon through the rotating hemostatic valve nor resistance/friction while inserting the balloon through the guide catheter.There was a little difficulty advancing the balloon catheter through the vessel as well as crossing the lesion.The catheter was in acute bend.The plunger was not depressed into the syringe/indeflator when trying to inflate.The user was not unable to depress the plunger into the syringe/indeflator when trying to inflate.The balloon inflated normally.There was no leakage of contrast noted prior to the balloon being filled.The maximum inflation pressure was 14 atmospheres (atm).Despite the reported slow deflation, the balloon did fully deflate.The product was removed intact (in one piece) from the patient.The balloon dilation was completed, the follow-up procedure was done normally.The product was returned for analysis.One non-sterile aviator plus.014 6.0x20 142cm was received inside of a clear plastic bag.The device was unpacked to proceed with the product evaluation.During the visual inspection, the balloon was previously inflated, a kink/bent condition was found on the body/shaft located approximately 29cm from distal tip.No other anomalies were noted via naked eye on the components returned for analysis.Per functional analysis, an insertion/withdrawal of an appropriate wire through the hub and the distal tip was intended and no difficulties nor impediment was noted.Next an inflator/deflator was connected to the luer hub, and it was attempted to inflate, the unit inflated/deflated as expected, no anomalies were noted.A product history record (phr) review of lot 82226844 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.The reported ¿body/shaft kinked/bent - in-patient¿ was confirmed as the device was returned and visibly kinked via the naked eye.The reported ¿balloon deflation difficulty - partial or slow¿ was not confirmed through analysis of the returned device.The exact cause of the reported event cannot be determined.Functional analysis was performed on the device, the balloon inflated and deflated as expected with no anomalies noted.Additionally, we do not know the contrast to saline ratio as this information was not provided and may be a contributing factor to a deflation difficulty as contrast is very viscous in nature.Therefore, based in the information available for review, it is likely procedural factors and/or handling of the device and vessel characteristics may have contributed to the events reported.According to the warnings in the safety information in the instructions for use, ¿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.Use only the recommended balloon inflation medium (a 50/50 mixture by volume of contrast medium and normal saline).Never use air or any gaseous medium to inflate the balloon.Prepare an inflation device with diluted contrast medium.Purge the air from the inflation device and connect the inflation device to the stopcock that is connected to the catheter inflation port.Caution: non-ionic contrast medium has higher viscosity and precipitation levels than does the ionic type, which may prolong inflation/deflation times.Open the stopcock to the catheter, the inflation lumen and the balloon will slowly be filled with diluted contrast medium.If resistance is met during manipulation, determine the cause of the resistance before proceeding.When the catheter is exposed to the vascular system, it should be manipulated only under fluoroscopy.Deflate the balloon by pulling vacuum on the inflation device, allowing adequate time for the balloon to fully deflate prior to removal.Open the hemostasis valve as wide as possible and carefully withdraw and remove the balloon catheter from the guiding catheter while keeping the guidewire in place.Close the hemostasis valve to maintain a snug seal around the guidewire.Note: in case of post-dilatation, slowly withdraw the balloon from the stent.Observe removal of the balloon under fluoroscopy to ensure that the balloon disengages from the stent.Perform angiography to confirm angioplasty and/or stent post-dilatation.Remove guidewire and guiding catheter from the patient and discard the devices.Note: if the balloon cannot be withdrawn through the guiding catheter, withdraw the balloon catheter and guiding catheter as a single unit.¿ neither the phr nor the information available suggests a design or manufacturing related cause for the reported event.Therefore, no corrective or preventive action will be taken at this time.
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