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Additional information.Investigation - evaluation: a review of the complaint history, drawings, device history record, documentation, instructions for use (ifu), manufacturing instructions, specifications and quality control was conducted during the investigation.The complaint device was not returned; therefore no physical examination could be performed.However, a document-based investigation was performed.There is no evidence to suggest the finished product was not made to specifications.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.These devices are 100% inspected prior to shipment.Each device is shipped with instructions for use (ifu) listing the indications for use, contraindications, warnings and precautions, and the correct deployment procedure.Per the ifu, "before removing the hydrophilic wire guide from its dispenser, inject heparinized saline solution into the luer lock hub end of the dispenser.Inject enough solution to fill the dispenser coil.This will completely cover the wire guide surface and activate the hydrophilic coating.Remove the hydrophilic wire guide from its dispenser by gently withdrawing the wire's tip.If the hydrophilic wire guide cannot easily be removed from its dispenser, inject more heparinized saline solution into the dispenser and then try again." use of sterilized gauze moistened with heparinized saline solution facilitates handling the wire.Note: if movement of the wire within the device becomes diminished, remove the wire guide and reactivate the hydrophilic coating by wetting its entire surface with heparinized saline solution." there is no mention from the customer that the hydrophilic coating was activated by injecting heparinized saline solution into the luer lock hub or that any attempts to reactivate the coating was performed.Without visual, dimensional, and/or functional testing of the product, we are unable to determine if this is a manufacturing issue.Based upon the information provided and the characteristics displayed, it is plausible to suggest that this incident was technique related or product handling related.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.
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