ANALYTICAL SYSTEM FOR DETERMINING AN ANALYTE IN A BODY FLUID AND DISPOSABLE INTEGRATED SAMPLE COLLECTION AND ANALYTICAL ELEMENT

摘要

The invention relates to an analytical system for determining an analyte in a body fluid, comprising a disposable integrated sample collection and analytical element which includes a lancing element (7) having a tip (15) for lancing the skin of a body part and a flat test strip (6) having a sample receiving zone (10) into which a body fluid sample is transferred to carry out an analysis. The system further comprises a reusable analytical device (2) including a coupling unit adapted to couple an integrated sample collection and analytical element to a drive driving the lancing movement of the lancing element (7). The lancing element is moved on a lancing path in the direction of lancing during an advance phase and, once it has reached a point of return of the lancing movement, it is moved counter to the direction of lancing during a return phase. The measurement and evaluation unit (36) is used to measure a measurement variable which is characteristic for determining the analyte and for determining a desired result of analysis based on said measurement. The sample receiving zone (10) of the test strip (6) is arranged on one of its flat faces (9) that configures a sample contact side (11). The lancing element (7) is arranged in parallel to the test strip (6) and can be moved during at least part of the lancing path relative to the test strip (6) on a movement path. The lancing element (7) is arranged adjacent to the sample contact side (11) of the test strip (6). It has a capillary channel (17) with a sample inlet (23) through which the body fluid can enter the capillary channel (17) after lancing, and a sample outlet (24) through which the body fluid can escape from the capillary channel (17). The movement of the lancing element (7) includes a sample transfer position in which the sample outlet (24) is adjacent to the sample receiving zone (10) of the test strip (6) in such a manner that the body fluid can be transferred from the capillary channel (17) through the sample outlet (24) to the sample receiving zone (10).