| 摘要 |
An object of the present invention is to provide an injection needle which has a low insertion resistance, which can inhibit an occurrence of a force pushing the needle outward, and which can prevent the coring. Moreover, another object of the present invention is to provide an injection needle which ensures a certain degree of flow rate when fluid flows in and out and which has a low inflow-outflow resistance. For these objects, there is provided an injection needle comprising a rigid hollow needle and a needle hub at the root end of the hollow needle, wherein the hollow needle comprises a flat surface at its tip end and a sloped surface from the flat surface to the needle hub.
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