| 摘要 |
<p>A device (1) for injecting a drug solution is provided with an upper member (3), a bottom member (2), and a sealing member (4) that is accommodated therebetween. The bottom member is provided with a sealing member peripheral edge-pressing section (22a) formed by the upper surface of an annular wall section (22), and with an annular edge section (25) that is formed on the inner side of the peripheral edge-pressing section. With regards to the sealing member, the upper surface-side of a flange section (42) is pressed by the upper member, and the outer peripheral section of the lower surface-side of the flange section (42) is pressed by the sealing member peripheral edge-pressing section (22a). The annular edge section (25) pierces the inner edge section of the lower-surface side of the flange section (42), and the skirt-shaped protruding section (43) of the sealing member is reduced. The lower end-outer peripheral surface of the insertion section (41b) for insertion into the bottom member is held in close contact with the internal surface of the annular wall section.</p> |
