< Topic >At the same time to the injector easy try to be able to install the auxiliary tool which stipulates the length where the needle drawer back projects securely.SolutionsInjection auxiliary tool (1) the injection needle (53) and the injection cylinder (54) the injector which it possesses (52) is something which is installed, auxiliary tool itself (21) with, the taper guide (22) with it has. Auxiliary tool itself (21), as the injection cylinder (54) the engagement section which is engaged (25) with, the injection needle (53) the hollow section which is penetrated completely (31) with, the injection needle (53) ahead the needle (53a) projects, the injection needle (53) the needle projection aspect which this touches to the skin when the stab it does (26a) it has possessed in the living body. As the taper guide (22), auxiliary tool itself (21) the hollow section (31) it is laid out, the needle projection aspect (26a) faces the inside where diameter continually becomes small (22b) it has possessed.< Choice figure >Drawing 7【課題】針先側の突出する長さを規定する補助具を注射器へ容易且つ確実に装着できるようにする。【解決手段】注射補助具(1)は、注射針(53)及び注射筒(54)を有した注射器(52)に装着するものであり、補助具本体(21)と、テーパガイド(22)とを備えている。補助具本体(21)は、注射筒(54)に係合する係合部(25)と、注射針(53)が貫通する中空部(31)と、注射針(53)の針先(53a)が突出すると共に注射針(53)を生体に穿刺する場合に皮膚に当接する針突出面(26a)を有している。テーパガイド(22)は、補助具本体(21)の中空部(31)に配置され、針突出面(26a)に向かうにつれて径が連続的に小さくなる内面(22b)を有している。【選択図】図7
