Patent ID: 8043582

Claim:
A dosing system comprising: a test element having a receiving channel defined therein, the receiving channel having a receiving opening, and a floor and walls that transport a fluid through the receiving channel away from the receiving opening by capillary action; and a dosing device comprising: a dosing, chamber; a dosing tube in fluid connection to the dosing chamber, the dosing tube comprising a dosing tip; a dosing control device configured to control a fluid flow from the dosing chamber through the dosing tube into the receiving channel; and a movement device configured to cause relative movement between the dosing tube and the test element from a rest position to an operating position, such that: the rest position defines a first distance between the dosing tip and the floor of the receiving channel; the operating position defines a second distance between the dosing tip and the floor of the receiving channel; in the operating position the dosing tip extends through the receiving opening and into the receiving channel; the second distance is sufficiently small so that a discharge of a quantity of the fluid from the dosing tip results in a fluid bridge between the dosing tip and the floor of the receiving channel; and at the end of the discharge, at least a part of the quantity of fluid is transferred into the receiving channel through a suction force caused by a combination of the cohesion force of the fluid, the adhesion force between the fluid and the floor of the receiving channel, and capillary forces of the receiving channel.