A sensor is described for optically determining the concentration of an analyte in a body fluid. This sensor comprises a needle arrangement which has at least one hollow needle having a hollow space extending from the distal end to the proximal end, the distal end of which is suitable for lancing. The...http://www.google.com/patents/US8160665?utm_source=gb-gplus-sharePatent US8160665 - Microneedle arrays with ATR sensor
