A MICRONEEDLE AND A FLUID CHANNEL SYSTEM FOR COLLECTING FLUID

Microneedle (100, 200, 300, 720) comprising an elongated body (110, 210, 310) extending along a longitudinal axis from a top end to a bottom end on a substrate (300, 710), where the elongated body comprises an upper portion (120, 220, 320) and a lower portion (130, 230, 330). The lower portion (130, 230, 330) comprises an internal capillary bore hole (260, 730) extending into the substrate (300, 710). The upper portion (120, 220, 320) of the elongated body (110, 210, 310) has a semi-enclosed internal void space (140, 240) formed by at least three body sides whereof two body sides join at a sharp edge and a third body side is provided with an opening slit (150, 250, 350) extending from the lower portion (130, 230, 330) of the elongated body (110, 210, 310) to the upper end of the third body side. The top end of the elongated body (110, 210, 310) is configured as a bevel to create a sharp tip at the top of said edge, said bevel extending to the third body side. The semi-enclosed internal void space (140, 240) of the upper portion opening to the internal capillary bore hole of the bottom end of the elongated body (110, 210, 310), and the bottom end of the elongated body is connected to the substrate (300, 710).