Test system

A test system for carrying out blood sugar tests, comprising:

• a diagnostic tape cassette comprising a windable analytical test tape for detecting an analyte and a cassette housing accommodating the test tape, wherein the cassette housing comprises a plurality of tape cassette positioning elements;
• and
• a test device comprising;
• a device housing configured for inserting and removing the tape cassette,
• an associated measuring unit for detecting the analyte on the test tape, and
• a platform permanently integrated or mounted as a device element in a base of a cassette compartment in the device housing, the platform comprising a rotary drive pin of a tape drive and a plurality of platform positioning elements,
• wherein the tape cassette, when inserted into the cassette compartment of the device housing, is detachably fastened to the platform by means of the plurality of platform positioning elements and the rotary drive pin,
• wherein the plurality of platform positioning elements comprises one or more raised supports and one or more positioning pins, wherein the one or more raised supports are disposed on a surface of the platform and are configured to provide a tilt-free support for an inserted tape cassette, wherein the one or more positioning pins are disposed on the surface of the platform and are pairable with at least one of the plurality of tape cassette positioning elements and are configured to nullify displacement play, and wherein the displacement play is between 1 mm and 3 mm, and
• wherein the measuring unit is fixedly attached on the platform or can be engaged therewith.