Diagnostic test unit for analysing body fluid

A diagnostic tester for analyzing a body fluid, the diagnostic tester comprising:

• a plurality of test strips, each having at least one test zone configured to receive the body fluid;
• a chamber configured to contain the plurality of test strips;
• a seal;
• an opening of the chamber that is at least partially bordered by the seal;
• a face on the chamber that borders the opening, at least part of the face being formed by the seal;
• a closing leaf spring sealed onto the face and configured to directly contact the plurality of test strips, the closing leaf spring shielding the opening from an environment outside the chamber, the closing leaf spring being disposed in a plane in relation to a top of the seal so as to flex at the opening;
• and an exit gap formed between the closing leaf spring and the seal through which the plurality of test strips are configured to exit the chamber, wherein the closing leaf spring is sealed to the seal around an entirety of the opening except at the exit gap, and directly presses on the plurality of test strips at the exit gap to form a barrier that isolates the chamber from the environment outside the chamber.

A diagnostic tester for analyzing a body fluid, the diagnostic tester comprising:

• a test tape with test fields for applying the body fluid;
• a chamber configured to contain the test tape;
• a seal;
• a closing leaf spring in direct contact with the test tape;
• a gap formed between the closing leaf spring and the seal, the gap being configured to allow passage of the test tape in use;
• and an opening of the chamber which is at least partially bordered by the seal, the opening being shielded from an environment outside the chamber by the closing leaf spring, and configured to act as a passageway for installing the test tape before the closing leaf spring is applied, wherein the closing leaf spring is disposed in a plane in relation to a top of the seal so as to flex at the opening, and the closing leaf spring is sealed to the seal around an entirety of the opening except at the gap, and directly presses on the test tape at the gap to form a barrier that isolates the chamber from the environment outside the chamber.

A diagnostic tester for analyzing a body fluid, the diagnostic tester comprising:

• a plurality of test strips, each with at least one test zone configured to receive the body fluid;
• a chamber configured to contain the plurality of test strips;
• a seal;
• an opening of the chamber that is at least partially bordered by the seal;
• a face on the chamber that borders the opening, at least part of the face being formed by the seal;
• a closing leaf spring sealed onto the face and configured to directly contact the plurality of test strips, the closing leaf spring being disposed in a plane in relation to a top of the seal so as to flex at the opening;
• and a gap formed between the closing leaf spring and the seal, the gap being configured to allow the plurality of test strips to be transported out of the chamber to an application site, wherein the opening is configured to allow the plurality of test strips to be installed before the closing leaf spring is applied, and the closing leaf spring is sealed to the seal around an entirety of the opening except at the gap, and directly presses on the plurality of test strips at the gap to form a barrier that isolates the chamber from an environment outside the chamber.

A portable device for analyzing a body fluid, the portable device comprising:

• a receiving bay configured to load a diagnostic tester, the diagnostic tester comprising:
• a plurality of test strips, each with at least one test zone configured to receive the body fluid;
• a chamber containing the plurality of test strips;
• a seal;
• a face on the chamber bordering the opening, at least part of the face being formed by the seal;
• a closing leaf spring sealed onto the face and configured to directly contact the plurality of test strips;
• a gap formed between the closing leaf spring and the seal, the gap being configured to allow passage of the plurality of test strips to an application site;
• and an opening of the chamber which is at least partially bordered by the seal, the opening being shielded from an environment outside the chamber by the closing leaf spring, the opening being configured to allow the plurality of test strips to be installed before the closing leaf spring is applied, wherein the closing leaf spring is disposed in a plane in relation to a top of the seal so as to flex at the opening, and the closing leaf spring is sealed to the seal around an entirety of the opening except at the gap, and directly presses on the plurality of test strips at the gap to form a barrier that isolates the chamber from the environment outside the chamber.