| 摘要 |
<p>A highly safe cartridge-type injection needle and injector not causing a needle stick accident etc. The injection needle cartridge (1) has a substantially circular column-like retaining member (10) for holding the injection needle (100) penetrating through it and also has a pair of holder members (11, 12) for forming a receiving section (104) for receiving the retaining member (10). The holder members (11, 12) of the pair are the first holder member (11) and the second holder member (12), the first holder member (11) having a first bottom plate (110) and a first slider section (111), the second holder member (12) having a second bottom plate (120) and a second slider section (121). The receiving section (102) is axially extendable and retractable when the slider sections (111, 121) are alternately arranged along the outer periphery of the retaining member (10) and is not axially retractable when the forward end surfaces of the slider sections (111, 121) are faced to each other.</p> |
