(b)(4).The device was not received for evaluation.The device history records were reviewed and found conforming to requirements at the time of manufacture.The low density polyethylene ldpe adhesion issue has been investigated and address by corrective and preventive actions.Health hazard evaluation evaluated the risk to the patient and found "risk assessment indicates that the likelihood of a toxic effect from the ldpe bags is negligible".Testing has been done that shows the residue can be removed with a cloth moistened with water or isopropyl alcohol.The lot was manufactured on august 3, 2012.The device was used for treatment.A product history search identified no other complaints for the specified part and lot combination.This issue has been previously investigated and as part of corrective action, a new supplier for the polyethylene bags has been selected and testing completed to ensure thermal reliability and stability of the new bags.Field action z-0845-2016 was initiated on january 11, 2016 to remove remaining affected units from the field.This field action contains the related part and lot number.This mdr was identified during an internal retrospective review to meet reporting requirements and therefore is being filed retrospectively.
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