It was reported the catheter was being placed into the patient's arm.During insertion, the guide wire would not pass through the green echogenic needle.The clinician stated you could feel bumps where the wire changes consistency.As a result, an mst kit was opened to complete the procedure.There was no delay in treatment and no patient death or complications reported.
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(b)(4).The event was initially evaluated and determined to be non-reportable.The returned device was evaluated and the event was determined to be a result of a product malfunction, therefore it is reportable.Device evaluation: the report that the guide wire would not pass through the needle was not confirmed.Returned was one guide wire.No needle was returned.By design the returned nitinol guide wire is composed of a straight solid wire 39 cm long with an additional 6 cm of spring coil at the distal end.The spring coils were examined microscopically.Several displaced coils were observed 5.7 cm from the distal tip.The overall length of the guide wire measured 44.9 cm, which met specification of 43.75 - 46.25 cm per guide wire graphic.The od of the solid portion of the guide wire measured 0.460mm, which met specification of 0.41 - 0.47 mm per guide wire graphic.The od of the spring coils measured 0.442 mm other remarks: this dimension is not specified on the guide wire graphic.The device history records were reviewed and did not reveal any manufacturing related issues.The probable cause of the guide wire not passing through the needle could not be determined based upon the information provided and without a complete sample.No further action will be taken.
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