| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection needle on which a material having biological adaptation and hardly affecting a human body is stuck and pains at the time of pierce can be decreased, to provide chemicals to be stuck to the injection needle, and to provide chemicals composition for sticking the chemicals to the injection needle. SOLUTION: At least one chemicals selected from a group consisting of squalene, its partial hydrogenated material, squalane and mixture thereof is stuck to the surface of at least tip part of injection needle for human body or animal at least. When the chemicals is stuck, a base material for impregnating the chemicals or a chemicals composition consisting of solvent for diluting the chemicals may be used. |
