(b)(4), the customer returned one opened cath-lab sheath introducer set for evaluation.Signs-of-use were observed on the returned components.Visual inspection of the dilator tip was split and frayed.The damage appears consistent with undue force applied to the dilator during an attempted insertion.The dilator total length measured 13" which is within the specifications of 12 1/2"-13 1/4" per product drawing.The dilator inner diameter at the tip could not be accurately measured due to the damage.Functional inspection of the dilator was performed per the instructions-for-use (ifu) provided with the kit, which states "ensure dilator hub fully snaps into sheath cap." the dilator was able to fully thread into the sheath with no resistance.A device history record review was performed with no relevant findings.The instructions for use (ifu) provided with this kit warns the user, "do not apply excessive force in removing guidewire or sheath/dilator.If withdrawal cannot be easily accomplished, determine cause using fluoroscopic guidance and request further consultation, if necessary." the customer report of a damaged dilator tip was confirmed through complaint investigation of the returned sample.Visual inspection revealed the dilator tip was frayed.The damage appears consistent with undue force being applied to the dilator during an attempted insertion.The returned dilator met all relevant dimensional and functional requirements, and a device history record review was performed with no relevant findings.Based on these circumstances, unintentional use error likely caused or contributed to this event.Teleflex will continue to monitor and trend for complaints of this nature.
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