(b)(4).The actual device involved in the reported incident was not returned for evaluation.Without the actual sample, a thorough evaluation could not be performed and no specific conclusions can be drawn.While no specific conclusion can be drawn, incidents of this nature can occur when a catheter becomes lodged between rigid body structures and is stretched beyond its design capabilities; or if the catheter is withdrawn or partially withdrawn through the needle, thereby shearing the catheter.Per the instructions for use (ifu) for the reported product catalog number, "do not withdraw catheter through needle because of the possible danger of shearing." review of the discrepancy management system database performed for the reported lot number did not reveal any abnormalities or nonconformances of this nature.All available information has been forwarded to the device manufacturer of the catheter.If additional pertinent information becomes available, a follow-up report will be filed.
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