(b)(4).Mfg name: codman & shurtleff, inc.Dba depuy synthes products, inc.Information regarding patient age, gender, weight and medical history is not available.Udi: lot number unknown; (b)(4).Conclusion: the micrusframe coil was not returned for analysis.In addition, the lot number was not available; therefore, a dhr could not be performed.The positioning difficulty with coil herniation into the parent vessel could not be confirmed without product return for analysis.The root cause of the event could not be determined; however, the excelsior microcatheter may have contributed to the event.There is no current safety signal identified related to the reported events based on review of complaint histories for the devices.Since there was no evidence to suggest the event was related to a manufacturing issue, no corrective actions will be taken at this time.This is an initial/final mdr.
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