| abstract |
The invention relates to a surface penetration device (100) and an analyte monitor. Embodiments of the surface penetration device include a substrate (6) with first and second surfaces, and first and second tissue piercing elements (2, 2', 102, 102'), the elements differing in configuration, but each associated with the first surface of the substrate. At least some of the tissue piercing elements have a distal (75' ) and a proximal opening and a lumen extending between the openings. The proximal openings are in fluid communication with an opening in the second surface of the substrate. Embodiments of the analyte monitor include the features of the penetration device (502) plus an analyte sensor (512) that detects an analyte in a fluid. |