The device was returned for analysis.The reported mechanical jam, activation failure and the reported premature activation were unable to be replicated in a testing environment due to the condition of the returned device.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other incidents from this lot.It is possible that the distal shaft was bent by the anatomy and/or interaction with other devices preventing the shaft lumens from moving freely; thus resulting in reported activation/deployment failure and the reported mechanical jam outside of the anatomy; however this cannot be confirmed.The investigation determined a conclusive cause for the reported activation/deployment failure and the reported mechanical jam cannot be determined.Intentional manipulation of the compromised device outside of the anatomy resulted in the reported premature activation.Reportedly, the 6x40 mm absolute pro self expanding stent system (sess) was advanced to the lesion and attempted to be deployed but the stent could not be released and completely failed to deploy.The sess was removed from the patient and the thumbwheel was pushed very hard to partially deploy [partially exposed, not flowered] the stent outside the patient.Then the sess was placed back into the anatomy and advanced to the lesion and deployed.It should be noted that the absolute pro.035 peripheral self-expanding stent system instructions for use states: this device is intended for single-use only; do not reuse.Additionally, section 6.2 stent placement- precautions states: do not expand the stent if it is not properly positioned in the vessel or bile duct.The reported deviation of the instructions for use does not appear to have caused/contributed to the reported difficulties.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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