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 inability to infuse through the catheter was confirmed and the cause appeared to be use-related.The product returned for evaluation was one 4fr s/l groshong catheter.The sample was received assembled with a two-piece connector.Usage residues were abundant throughout the sample and the catheter tubing appeared to be full of coagulated blood products.Microscopic inspection of the valve w2as unremarkable.Inspection of the sample confirmed the presence of abundant blood product material within the catheter lumen.An attempt to infuse water through the sample using a 12ml syringe revealed the sample to be fully occluded, apparently by the observed blood products.The catheter appeared to be fully occluded by coagulated blood products, suggesting that improper catheter maintenance lead to the reported inability to flush the sample.The product ifu provides guidance for catheter maintenance and for dealing with blood product occlusions.
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