Product complaint # (b)(4).Investigation summary: the complaint device has been received and evaluated.Visual observation confirms that the tip of the needle is broken, confirming this complaint.Additionally, the needle was discovered bent proximal to the plastic flag indicating the needle was loaded in the expressew gun with some resistance.For the broken distal tip of the needle per ifu, repeatedly passing the needle through excess tissue causes the needle to fatigue and break.Eiii needles have been designed to pass 15 times successfully through tissue and any usage beyond this would cause the needle to fatigue and eventually break.No further procedure information was provided to determine if the above reason contributed to this failure.Forceful attempts to load the needle in the needle tray could¿ve contributed to the breakage of the distal tip, however a specific root cause for the user to experience the reported failure could not be determined.The dhr review indicated that this batch of devices were processed without incident, therefore, there is no evidence of manufacturing anomalies on the records reviewed.Further, a review into the depuy mitek complaints system revealed no complaints of any type for this lot of devices that were released to distribution.At this point in time, no corrective action is required, and no further action is warranted.However, depuy synthes mitek will continue to track any related complaints within this device family as a means of monitoring the extent with which this complaint is observed in the field.Udi: (b)(4).
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