< Topic > Thorn entrance to the vein at one place, the liquid medicine of 2 types without contacting mutually, circulates to the vein via the independent dedicated line, at the same time offers the vascular stab tool 10 for the medical drop of the single needle die which simultaneously or alternately the drop it is possible the liquid medicine of 2 types. SolutionsOuter tube stab needle 20 and confluence tube concatenating 30 and adjustment tube 40, you install the cannula for the chemical feeding in configuration internal it becomes, the Tip of the cannula for the said chemical feeding extend make from the Tip of outer tube stab needle and 20 constitute. < Choice figure >Drawing 1【課題】 静脈への刺入は一箇所で、2種類の薬液が相互に接触しないで独立専用のラインを経由して静脈まで流通し、かつ2種類の薬液を同時または交互に点滴できる単針型の医療点滴用血管穿刺具10を提供すること。【解決手段】外管穿刺針20と合流管30と調節管40とを連結してなる構成体内に薬液注入用カニューレを装着し、該薬液注入用カニューレの先端を外管穿刺針20の先端部から突出させて構成する。【選択図】図1