A sample was received to perform an investigation.Visual inspection found that the rotating collar (lock) was missing on returned filter.The root cause of the reported issue was found to be retention edge on return sample was damaged and therefore it could not hold rotating collar in place.Information for use (ifu), precautions section, overtightening the connection between the epidural catheter connector or epidural needle to the male rotating collar may cause the rotating collar to dislodge from the filter body.A device history review (dhr) was not conducted as this was not considered a manufacturing issue.No product information has been provided to date.This remediation mdr was generated under protocol b10009406, as a result of warning letter cms# (b)(4).
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