| 摘要 |
PURPOSE: A sliding needle is provided to minimize damage to a nerve, a blood vessel, and a tissue by enabling a surgical operator to easily check the location of a cannula. CONSTITUTION: A cannula(2) is made of flexible and soft materials which blocks an X-ray. A conduit is formed in the cannula to receive a probe(1). The probe has a handle. A spiral coil(4) is formed in the cannula. The end of the probe is more protrusive than the cannula. The cannula has a dual structure of an inner tube and an outer tube.
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