| Model Number |
391239 |
| Medical Device Problem Codes |
Failure to Advance (2524); Material Deformation (2976)
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| Health Effect - Clinical Code |
No Clinical Signs, Symptoms or Conditions (4582)
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| Date of Event |
12/21/2021
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Type of Reportable Event
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Malfunction
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Event or Problem Description
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An orsiro drug-eluting stent system was selected for treatment of a lesion in the rca 3 to 4, but it did not pass through the lesion probably because another stent had already been placed proximal to the lesion.As it was decided to withdraw the orsiro, the stent got deformed at the proximal end.
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Additional Manufacturer Narrative
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The returned instrument was subjected to a detailed technical analysis and the corresponding product release documentation was reviewed to establish whether a deviation from the manufacturing process could be the cause for the reported event.The technical investigation revealed that the stent is severely deformed at its proximal end, i.E.Several struts are bent.Microscopic inspection showed stent imprints on the exposed balloon surface, indicating that the bent struts were initially crimped on the balloon.Outside of the deformed zone the crimped diameter of the stent still complies with the specification.The balloon is well folded and shows no signs of inflation.Review of the product release documentation confirmed that the instrument was manufactured according to specifications and passed all in-process and final inspections.As a part of final inspection every stent system undergoes visual inspection to ensure correct embedding and homogeneous crimping of the stent.Further, the stent outer diameter is verified to 100 percent and the stent retention force of a defined amount of samples is tested from every lot.Based on the conducted investigations of the device being subject to this complaint, no material or manufacturing related root cause was determined.It should be noted that the ifu advises the user to initially stent the distal lesion, followed by stenting of the proximal lesion when treating multiple lesions.
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Search Alerts/Recalls
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