H11:section a through f - the information provided by bd represents all of the known information at this time.Despite good faith efforts to obtain additional information, the complainant / reporter was unable or unwilling to provide any further patient, product, or procedural details to bd.The following were reviewed as part of this investigation: patient severity, trend analysis, applicable previous investigation(s), sample (if available), and applicable fmea documents.Based on a review of this information, the following was concluded: the complaint of safety mechanism detachment was confirmed and the cause appeared to be use-related.The product returned for evaluation was one 22ga x 0.5¿ safestep safety infusion set.The sample was received without the safety mechanism plate.Usage residues were observed.Microscopic inspection of the sample revealed longitudinally aligned scoring marks along the needle shaft.The needle bevel angle was measured to be about 8 degrees.A similar non-complainant device was measured and the bevel angle was found to be about 13 degrees.The safety mechanism was removed by forceful pulling, and the angle was subsequently measured to be about 8 degrees.The scoring marks and reduced bevel angle were consistent with forceful removal of the safety mechanism.The usage residues suggested that exposure occurred during or following device removal from the patient.A lot history review (lhr) review is not possible, as no manufacturing lot number has been provided by the complainant.
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