(b)(4).Investigation summary: a device history record review was performed for provided lot number 9255888 and the review did not reveal any detected quality issues during the production process that could have contributed to this reported incident.As samples were unavailable for return, out quality engineer team was unable to complete a thorough sample investigation.Based on the provided information, there is no evidence to support that the posiflush syringe was responsible for the reported infection.A potential contributory factor may have been the other medicinal products in use or administered at the time the patient's port was flushed.During the period of 2017-2019, there were no other adverse reaction trends for customer complaints related to allergic reactions or infections.A field safety notice (fsn) was recently communicated regarding this product line; however, the lot number involved in this incident was not involved in the fsn.This lot number was produced on a separate manufacturing line than the product involved in the communicated fsn.Investigation conclusion: batch code: 9255888.The non-conformances were reviewed for this batch, and there was no record of non-conformance which could contribute to the complaint verbatim reported by the customer.There were no samples returned.Based on the information provided, it is unlikely that any of the above are a contributory factor to the complaint verbatim reported by the customer.Root cause description: there is no evidence that posiflush syringe was responsible for this infection.A potential contributory factor maybe other medicinal products in use or administered at the time the patient¿s port was flushed.Rationale: based on the information provided, it is more probable than not that the symptoms described may be infection related; it is highly improbable that this infection was not produced by the normal saline in the bd posiflush product.During the period 2017-2019, there are no other adverse customer complaint trends for the complaint category of allergic reaction/infection there are no known allergies to normal saline, either topical or within the body.The batch referenced in this complaint is not involved in the fsn communicated recently.
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