| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high-quality microneedle device having a fluid conduit (through-hole), which can puncture a skin with small power without pain, and can smoothly perform the infusion of a drug or the suction of blood, a body fluid, etc. after the puncture. <P>SOLUTION: The microneedle device 10 is a structure in which a plurality of needle-shaped projections 12 are formed on a flat base plate 11 so as to be integrated with the flat base plate 11 and aligned, wherein a distal end 17 side of the needle shape projection 12 from the boundary surface 13 is composed of a first material 14a that shows solubility in a body, and a flat base plate 11 side thereof is composed of a second material 14b that is insoluble, and has the fluid conduit 15 that is formed in the needle-shaped projections 12 and penetrates only a bottom surface side of the flat base plate 11. <P>COPYRIGHT: (C)2013,JPO&INPIT |
