▎ 摘　　要

NOVELTY - The needle has an elastic pad whose outer surface is provided with a sol layer. An extraction cleaning device consists of a cleaning rod, a central shaft, an impeller (9), and an arc scraper. A filter sieve is arranged in a main tube (1), and is closely attached to the inner wall of the main tube. Two sets of arc scrapers are arranged on the central shaft. The outer edge of a curved scraper is provided with two cleaning scrapers whose surface is provided with a first graphene wire and a second graphene wire wrapped around each other. An impeller is arranged on the central axis. USE - Medical intracranial effusion extraction cranial needle. ADVANTAGE - The structure of the needle is simple, convenient and practical. The efficiency of intracranial effusion is improved. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the medical intracranial effusion extraction cranial needle. Main tube (1) Wall-breaking head (2) Guide screw (3) Liquid pumping hole (4) Impeller (9)