This mdr was generated under protocol (b)(4), as a result of warning letter cms# (b)(4).No problems or issues were identified during this device history record review(dhr).Six units were received for evaluation; the returned units were received in decontaminated condition without their original packaging.Visual and functional testing were performed.Samples received did not present with any damaged, broken, or bent in the canula section.Retractor was tested using an insertion pad for each sample received, to see if the spring is activated and if it adhered the insertion of the needle.The insert was adhered correctly on the insertion pad and there was not any defect in the returned samples.Complaint could not confirm.Based on the samples unused returned for the evaluation was not possible replicate the issue, based in the dhr and in process inspection controls 200 parts were tested with no issues reported.A corrective and preventative action (capa) has been opened to address the reported issue.Root cause identified per capa: cannulas can be detaching due to an inadequate processing per a shift on parameter window for the cannula molding process.Actions were taken to mitigate the reported issue: achieve tool consistency, perform process validation, develop and validate cannula strength tensile test to ensure cannula can meet minimum tensile strength.
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