|
After further review of additional information received the following sections have been updated accordingly: d10, g4, g7, h1, h2, h6, h10, and h11.As reported, the balloon of 2.5mm x 2cm x 90cm saber percutaneous transluminal angioplasty (pta) ¿loses liquid over the shaft when it unfolds.¿ it cannot be fully deployed and therefore cannot be used on the patient.The physician used another saber balloon catheter with no difficulties.Patient¿s outcome is stable and good.There was no reported patient injury.The intended procedure was a percutaneous transluminal angioplasty (pta) of the right lower leg.The device was opened in sterile field.The product was stored properly according to the instructions for use (ifu).There was no damage noted to the product packaging upon inspection prior to use.There was no reported difficulty removing the product from the packaging.There was no difficulty removing the product from the hoop, the protective balloon cover, or any of the sterile packaging components.The product was prepped properly according to the ifu.The product was inspected prior to use and appeared to be normal.Contrast was not used for testing.A non-cordis inflation device was used and it was used successfully with other devices.The leakage was noted to be coming from the balloon.The event did not cause a clinically relevant increase in the duration of the procedure.The event did not cause a condition that requires hospitalization or significant prolongation of existing hospitalization.Other procedural information was requested by unknown.The device was returned for analysis.A non-sterile saber 2.5mm x 2cm x 90 was received for analysis coiled inside a plastic bag.Per visual analysis, the balloon appears to have been previously inflated.The unit was thoroughly inspected at naked eye and no other anomalies were observed.Per functional analysis, balloon inflation was performed.A lab inflator/deflator device was attached to the inflation lumen of unit and pressure applied.A leakage of water was observed coming from the distal tip.The body/shaft of the unit was observed burst.Per sem analysis on the unit¿s leakage observed during inflation test, results revealed that the body/shaft burst was caused by a rupture on the body/shaft area.The inner surface presented no anomalies adjacent to the body/shaft rupture.The outer surface presented evidence of elongations and scratch marks adjacent to the body/shaft area rupture.This type of damage is commonly caused during the interaction of the body/shaft material with a sharp object or mechanical damage.It is very likely that the same factors that caused the observed elongations and scratch marks on the body/shaft area surface could probably led to the rupture condition found on the received device.It appears the body/shaft material near the rupture was torn either due to the interaction of the body/shaft with calcified spicules located on the lesion or with a sharp object from the outside of the body/shaft.No other anomalies were observed during the sem analysis.A product history record (phr) review of lot 82169169 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.The reported ¿body/shaft leakage - during prep¿ and subsequent findings of ¿body/shaft burst¿ was confirmed during device analysis.The exact cause could not be determined.Device analysis revealed elongations and scratch marks adjacent to the body/shaft area rupture that most likely led to the ruptured condition found on the received device.Based on the information provided it appears the body/shaft leakage/rupture was caused by the interaction of the balloon material with a sharp object.It is likely vessel characteristics, although unknown, may have contributed to the reported event as calcified spicules may easily damage balloon material and clearly damaged the shaft of the device per sem analysis.According to the instructions for use, which are not intended to mitigate risk, ¿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.To reduce the potential for vessel damage or the risk of dislodgement of particles it is very important that the inflated diameter of the balloon should approximate the diameter of the vessel just proximal and distal to the lesion.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 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.
|