|
A flexor raabe guiding sheath was used in a venous stenting procedure in a femoral vein in the leg, via contralateral approach.It was reported that when removing the catheter, it damaged the valves on the sheath and it came apart.It is believed that the catheter pulled the diaphragm when it was removed, causing the sheath damage.The procedure was able to be completed successfully.A section of the device did not remain inside the patient¿s body.The patient did not require any additional procedures due to this occurrence.According to the initial reporter, the patient did not experience any adverse effects due to this occurrence.
|
|
This is one of two sheaths used in the procedure.The other sheath has been reported under mw 1820334-2017-03197.Investigation - evaluation: a review of the complaint history, drawings, dimensional verification, device history record, documentation, instructions for use (ifu), manufacturing instructions, quality control, and visual inspection of the returned device was conducted during the investigation.A flexor ansel guiding sheath and a volcano ivus catheter were returned for investigation.The silicone disk was returned separate from the check-flo assembly.The disc was examined and no tears were visible.The disc was slit edge to edge.The proximal hole of the check-flo cap accepted a 0.151" pin gauge.The silicone disk measured 0.355" from flat edge to flat edge and 0.407" from round edge to round edge.The ivus catheter was able to be fully advance through the sheath and the proximal fitting (note: no silicone disk present within the check-flo assembly).The inner diameter (i.D.) of the sheath was measured to be 0.113" by passing a 0.112" checker wire through it.The outer diameter (o.D) of the ivus catheter was measured to be 0.113" at its widest section in the distal end.However, a document-based investigation was performed.There is no evidence to suggest the finished product was not made to specifications.A review of production and quality documentation did not observe any specific issues with current manufacturing or quality controls that may have contributed to this incident.Review of the device history record of the finished product shows no nonconforming events that would contribute to this failure mode.There were no other reported complaints for this lot number.As the outer diameter of the widest section of the volcano ivus catheter measures the same as the inner diameter of the ansel guiding sheath tubing, the user experienced resistance during removal of the ivus cather which led to the silicone disk getting dislodged out of the check-flo cap hole.The root cause has been determined to be related to user technique.Per the ifu: "the maximum diameter of the instrument or catheter to be introduced should be determined to ensure its passage through the introducer.All instruments or catheters used with this product should move freely through the valve and sheath.Damage to the valve/introducer may result when the fit is tight." per the quality engineering risk assessment, no further action is required.Appropriate personnel have been notified and monitoring will continue to be performed for similar complaints.
|