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(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.The analysis was performed by (b)(4).Investigation of the device could not be conducted as it was not returned.Investigation of the production records for the device could not be performed as no lot information was available.Based on the provided information, it is presumed that pulling force exceeding the products design limit might be inadvertently given to the subject guide wire while its tip was trapped by the lesion or narrowed part of the vasculature, stretching the coil.Although the device investigation and lot history review could not be conducted, there was no indication of product deficiency since all the shipped products are inspected in the production process and satisfied the product specifications and release criteria.The investigation determined the reported difficulties appear to be related to circumstances of the procedure.The device is manufactured by (b)(4); however, the manufacturing site could not be determined because the product lot number was not provided.Abbott vascular distributes the device and is responsible for mdr reporting.
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