This invention there is no pain in case of thorn entrance, it does not make the stress cause which is needless to the patient, it is possible because of this to increase the effect of treatment markedly, injection frequency augments and the skin of injection place, there are no times when the muscle hardens, form of the Tip has done pine needle form, the injection needle which possesses 2 - 6 chemical feeding openings in the part of the handle of the needle which at the same time is close to the Tip is offered.本発明は、刺入に際して痛みがなく、患者に無用のストレスを起こさせず、これにより治療効果を格段に上げることができ、注射頻度が増加しても注射個所の皮膚、筋肉が硬化することのない、先端部の形状が松葉形状をしており、かつ先端に近い針柄の部分に2~6個程度の薬液注入口を有する注射針を提供する。
