| Model Number |
364508 |
| Medical Device Problem Code |
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 |
09/09/2021
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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 the moderate calcified lesion in a moderate tortuous rca.Despite pre-dilatation the lesion could not be crossed with the device due vessel tortuosity.The stent was deformed.
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Event or Problem Description
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An orsiro drug eluting stent system was selected for treatment of the moderate calcified lesion in a moderate tortuous rca.Despite pre-dilatation the lesion could not be crossed with the device due to vessel tortuosity.The stent was deformed.
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Additional Manufacturer Narrative
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The returned product 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.In addition, the angiographic material provided was reviewed.The technical investigation revealed that the stent is slightly deformed at its distal end, i.E.Few struts are lifted.Microscopic inspection showed stent imprints on the exposed balloon surface, indicating that the bent struts were initially crimped on the balloon.The balloon is well folded and shows no signs of inflation.The angiographic material shows a balloon dilation in the mid rca, followed by the implantation of a stent and several balloon dilations in the proximal rca.Thereafter, the complaint instrument is introduced but cannot be advanced through the proximal rca.The stent system is withdrawn to perform another balloon dilatation.The stent system is then re-introduced but again fails to cross the proximal rca segment.Review of the product release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.The root cause for the complaint event is most likely related to the patients anatomy.
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Search Alerts/Recalls
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