It was reported that when the lumbar peritioneal (lp) shunt procedure was performed in the 4th week of (b)(6) 2017, a lumbar catheter could not be inserted smoothly.Then, the lumbar catheter was mistakenly pulled out in the opposite direction while the puncture needle had been inserted.As a result, the tip of the lumbar catheter was scooped out, and the detached fragments have been drifting in the spinal cavity.It was noted that the tip of the lumbar catheter was detached as it was scooped out by the puncture needle.While some fragments were removed out of the patient's body, some have been drifting in the spinal cavity.
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