| 摘要 |
The device for perforation of the skin or other biological barrier comprises a number of plates 31 with microneedles on one edge with skin contact elements 33 adjacent to the plates. In use each plate is driven repeatedly up and down at high speed, either all together or in a sequence such as a wave pattern. The drive means may be an electric motor attached to a cam 35 which either passes through or touches the tops of the plates. The microneedle array may be formed by etching. The skin contact elements may be formed from a block or may be spring loaded or mechanically driven to produce a downward force on the skin.
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