Catalog Number 1012014-150 |
Device Problems
Material Deformation (2976); Mechanical Jam (2983); Activation Failure (3270)
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Patient Problem
No Clinical Signs, Symptoms or Conditions (4582)
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Event Date 08/18/2023 |
Event Type
malfunction
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Event Description
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It was reported that the procedure was to treat the 100% stenosed left superficial femoral artery (sfa) with moderate calcification and minimal tortuosity.Pre-dilatation was performed with a 5x120 mm armada percutaneous transluminal angioplasty (pta) catheter and a dissection was caused; however, this was a controlled process and the dissection was treated with a balloon dilatation catheter.The 5x150 mm absolute pro self expanding stent system (sess) was advanced to the lesion.Upon attempting deployment, there was stickiness in the thumbwheel.The stent partially deployed and a portion of the stent separated.The delivery system was removed as a single unit but a portion of the stent remained in the lumen of the artery, in front of the target lesion.A 5x120 mm armada pta catheter was used to inflate the separated portion of the stent.After the unsuccessful deployment of the first stent, a second, same size absolute pro sess was advanced to the lesion.During the attempt to deploy the stent, the thumbwheel jammed and the stent began to deploy in a deformed way.The delivery system was removed with the stent.There was no adverse patient sequela.No additional information was provided.
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Manufacturer Narrative
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Manufacturer's investigation is still pending at this time.Results and conclusions will be provided in the final report.The additional devices referenced in b5 are filed under separate medwatch report numbers.
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Event Description
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It was reported that the procedure was to treat the 100% stenosed left superficial femoral artery (sfa) with moderate calcification and minimal tortuosity.Pre-dilatation was performed with a 5x120 mm armada percutaneous transluminal angioplasty (pta) catheter and a dissection was caused; however, this was a controlled process and the dissection was treated with a balloon dilatation catheter.The 5x150 mm absolute pro self expanding stent system (sess) was advanced to the lesion.Upon attempting deployment, there was stickiness in the thumbwheel.The stent partially deployed and a portion of the stent separated.The delivery system was removed as a single unit but a portion of the stent remained in the lumen of the artery, in front of the target lesion.A 5x120 mm armada pta catheter was used to inflate the separated portion of the stent.After the unsuccessful deployment of the first stent, a second, same size absolute pro sess was advanced to the lesion.During the attempt to deploy the stent, the thumbwheel jammed and the stent began to deploy in a deformed way.The delivery system was removed with the stent.There was no adverse patient sequela.No additional information was provided.
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Manufacturer Narrative
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The device was not returned for analysis.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 did not indicate a lot specific quality issue.As there was no damage noted to the device during the inspection prior to use, it is possible that the distal shaft was bent by the moderately calcified and minimally torturous anatomy preventing the shaft lumens from moving freely, resulting in resistance with the thumbwheel and difficulty deploying the stent; however, this cannot be confirmed.The investigation determined a conclusive cause for the reported activation failure and the reported mechanical jam cannot be determined.Interaction and/or manipulation of the compromised device likely resulted in the reported stent material deformation.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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Search Alerts/Recalls
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