Investigation - evaluation: a review of the complaint history, instructions for use (ifu), and quality control data was conducted during the investigation.The complaint device was not returned; therefore no physical examination could be performed.The lot number of the device is not known; accordingly a review of the device history record could not be conducted.Per the instructions for use (ifu), t_intro_rev2, states, "warnings: before withdrawing the sheath through tortuous anatomy, insert the introducer dilator to avoid possible breakage.Precautions: this product is intended for use by physicians trained and experienced in diagnostic and interventional techniques.Standard techniques for placement of vascular access sheaths should be employed.When inserting, manipulating, or withdrawing a device through an introducer always maintain introducer position.Do not attempt to insert or withdraw the wire guide and/or introducer if resistance is felt.Sheath removal: insert wire guide at least 10 cm past the tip of the sheath.Insert the dilator over the wire into the sheath.Withdraw the sheath and dilator as a unit.Remove the wire guide." based on the information provided, no product returned, and the results of our investigation; a definitive root cause could not be determined.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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