A clever trick to remove a stuck epidural catheter is to apply constant tension for hours. This method actually derives from a method to remove worms from patients.
"wind the epidural catheter around a tongue blade"
"Consider tying or wrapping a tongue depressor to the distal end of the stuck catheter until taut and tape to the back to allow continuous gentle traction during regular patient activities."
From table 1 in this paper: Surgical Management of the Retained Epidural Catheter Fragment Complicated by Postoperative Phlegmon
"The only way to get rid of the guinea worms was to wind them onto sticks, which nurses then twisted, slowly and steadily, for two weeks."
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