Device is a combination product.(b)(4).Device evaluated by mfr: the device has not been received for analysis.Upon receipt and completion of the failure analysis of the complaint device, if there is any further relevant information from that review, a supplemental medwatch will be filed.(b)(4).
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Device avail.For eval, returned to mfr.On, device returned to mfr., device evaluated by mfr., eval summary attached, method codes, result codes, conclusion codes updated.Device evaluated by mfr: synergy ous mr 2.25 x 20mm stent delivery system (sds) was returned for analysis.A visual and microscopic examination of the crimped stent identified stent damage.Damage was noted to both the proximal and distal ends of the stent; the 2 most proximal stent strut rows were damaged and pulled in a distal direction.The distal end of the stent was stretched and pulled distally over the distal markerband.The undamaged crimped stent outer diameter was measured and the result was within max crimped stent profile measurement.The balloon cones were reviewed and no issues were noted.The balloon wings were tightly wrapped and evenly folded and were not subjected to positive pressure.A visual and tactile examination of the hypotube found multiple hypotube kinks along the full length of the catheter.A visual and tactile examination of shaft polymer extrusion revealed no issues.A visual and microscopic examination found damage to the tip.No other issues were identified during the product analysis.The manufacturing batch record review confirmed that the device met all material, assembly and performance specifications.The investigation conclusion is operational context as the product meets the design & manufacture specification but due to anatomical/procedural factors encountered during the procedure, performance was limited.(b)(4).
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