(b)(4).The customer returned one opened thoracentesis kit for analysis.The catheter assembly will be analyzed as part of this complaint investigation.Signs of use in the form of biological material were observed inside the stopcock.Visual analysis revealed that the distal end of the stopcock was separated.A portion of the separated stopcock was still evident within the catheter hub.Microscopic examination confirmed the damage and revealed that the edges of the separation were rough.It was observed that the stopcock was inserted too far into the blue hub.A manual tug test confirmed that the separated portion of the stopcock was secure within the catheter hub.These catheters are assembled using pneumatic cylinders and the stopcock was likely pushed too far into the catheter hub.This in combination with the different material expansion rates and temperature cycling in sterilization and shipping could also contributed to this event.A device history record review was performed, and no relevant findings were identified.The ifu provided with the kit informs the user, "some disinfectants used at catheter insertion site contain solvents which can weaken the catheter material.Alcohol, acetone, and polyethylene glycol can weaken the structure of polyurethane materials.These agents may also weaken the adhesive bond between catheter stabilization device and skin." the report that a stopcock cracked/leaked was confirmed through complaint investigation.Visual analysis revealed that the stopcock separated directly adjacent to the proximal opening of the catheter hub.Based on the customer report and the sample received, it was determined that the root cause for this complaint is manufacturing related.A non-conformance was initiated to further investigate this complaint issue.Teleflex will continue to monitor and trend for reports of this nature.
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