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Qn# (b)(4).The customer returned one cath-lab assembly for analysis.No obvious signs of use were observed.Visual inspection of the sheath revealed that the sheath internal seal was separated from the rest of the assembly.The seal is intended to rest inside the valve body.Further functional analyses revealed that the internal seal exits the proximal opening of the cap when removing the dilator from the assembly.Microscopic examination of the slits did not reveal any obvious defect; however, further dimensional analysis revealed that the slit lengths are below specification.No physical defects or anomalies were observed with any portion of the cath-lab, the dilator, nor the cap.Dimensional analysis was performed on one of the seal slits, which measured to be 0.0265", which is not within the specification limits of 0.035-0.045" per the seal product drawing.The hemostasis cap was removed to reassemble the components.The seal was placed within the hemostasis valve and the cap reassembled.The dilator was inserted through the sheath.Major resistance was encountered from inside the hemostasis valve; the dilator was not able to fully advance and snap into the cap, which is not the intended function.Upon removal of the dilator, the internal seal was observed to cling to the surface of the dilator.This resulted in the seal to completely exit through the cap of the hemostasis valve.Performed per instructions-for-use (ifu) provided with this kit which states, "ensure dilator hub fully snaps into sheath cap".A device history record review was performed, and no relevant findings were identified.The customer complaint of a valve assembly separation was confirmed through complaint investigation.Visual analysis revealed that the internal seal had been pulled outside of the hemostasis valve body by the dilator extrusion.This is not the intended assembly.Further functional analysis revealed that the seal exits through the hemostasis cap when the dilator is withdrawn.Dimensional analysis revealed that the slits on the internal seal are not within specification.Based on the customer report, the sample received, and the comments from manufacturing, the root cause is likely supplier related.A non-conformance was initiated to further investigate this complaint issue.Teleflex will continue to monitor and trend on complaints of this nature.
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