| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection or biospy needle for reducing an injury to the tissue to be collected or an internal tissue and to provide an injection or biopsy needle suppressing a generation of a current of injury to become a cause for giving an injury to a tissue to be collected. SOLUTION: The injection or biospy needle is a hollow needle for the injection or biospy needle obtained by coating a cemented, nonconductive and nonmagnetic substance on a periphery of a hollow fine tube formed of a non-ferrous material. As the cemented, nonconductive and nonmagnetic substance, a zirconia is preferred. As the non-ferrous material, an aluminum carbide, titanium, silicon or zirconium is preferred. Further, this needle is the biospy needle formed of a fine collecting tube for collecting an organism cell applying the needle to the hollow needle of an external insertion needle, a fluid injection tube, a tube connecting section for connecting a distal end of the collecting tube and a distal end of the injection tube and a hollow needle mounted at the tube connecting section. |
