Abstract:
Ein Apparat zur Gewinnung und Analyse einer Blutprobe hat eine integrierte Antriebseinheit mit einer gemeinsamen Antriebsquelle und einem Antriebskraftübertragungsgetriebe, über das ein Lanzettenantrieb, eine Einrichtung zur Fortschaltung eines Magazins (4) und eine Probenübertragungseinrichtung (12) an die Antriebsquelle ankoppelbar ist. Ein Spannrotor (18) und ein Antriebsrotor (20) sind koaxial zueinander drehbar gelagert. Eine erste Kurvensteuerung setzt die Rotation des Antriebsrotors (20) in eine radiale Vor- und Rückbewegung einer Treibstange (9) um. Eine zweite Kurvensteuerung setzt die Rotationsbewegung des Spannrotors (18) in eine lineare Bewegung eines Kulissenschiebers (11) um. Eine vom Kulissenschieber (11) bewegte Schaltkulisse (34) dreht das Magazin (4) einen Schritt weiter. Eine dritte Kurvensteuerung setzt die Rotationsbewegung des Spannrotors (18) in eine lineare Bewegung eines Druckstößels (37) senkrecht zur Stichachse um.
Abstract:
The invention relates to a device for taking and analyzing a blood sample, comprising an integrated drive unit having a common drive source and a driving-force transmitting gear train, by means of which a lancet drive, an apparatus for advancing a magazine (4), and a sample transmitting apparatus (12) can be coupled to the drive source. A stressing rotor (18) and a drive rotor (20) are rotatably mounted coaxially to each other. A first cam control converts the rotation of the drive rotor (20) into a radial forward and backward motion of a driving rod (9). A second cam control converts the rotational motion of the stressing rotor (18) into a linear motion of a slotted-link slider (11). A switching slotted link (34) moved by the slotted-link slider (11) rotates the magazine (4) one step further. A third cam control converts the rotational motion of the stressing rotor (18) into a linear motion of a push rod (37) perpendicular to the pricking axis.
Abstract:
Analysis system for determining an analyte in a body fluid, comprising a reusable analysis instrument (2) and a magazine (3) having a plurality of flat, disposable, integrated sample acquisition and analyzing elements, each comprising a puncturing element (23) and an analyzing element (20) and have two major surfaces. The analysis instrument (2) comprises a drive, by which the puncture movement of the puncturing element (23) is driven, to move it on a movement path in the puncturing direction during a propulsion phase and opposite to the puncturing direction after reaching a reversal point of the puncture movement during a retraction phase, a coupling unit (7), which is adapted for coupling an integrated sample acquisition and analyzing element to the drive, a measuring and evaluation unit (8) for measuring a measurement variable characteristic for determining an analyte and for deriving a desired analysis result, and a holder for receiving the magazine (3). The magazine (3) comprises a housing having a plurality of elongate chambers located neighboring one another. The chamber (9) are separated by two side walls (10) running in the longitudinal direction of the chambers (9), and have a height and length greater than the distance of two neighboring side walls (10). The chambers (9) have major sides (11 ) delimited by the side walls (10) and two long and two short minor sides (12, 13) extending between the side walls (10). The chamber (9) contain an integrated sample acquisition and analyzing element, whose puncturing element has a coupling structure (29) and is movable on the movement path of the puncture movement in the puncturing direction. The chambers (9) have an exit opening (14) on one of their minor sides (12, 13) for allowing at least partial exiting out of the chamber of the puncturing element (23) moved on the movement path. The coupling unit (7) has a coupling element (35). The chambers (9) of the magazine (3) are accessible for the coupling element (35) on one of their long minor sides (12) such that the coupling element (35) can be coupled to the coupling structure (29) of the puncturing element (23) in a formfitting way, when the puncturing element (23) is positioned in the chamber (9) of the magazine (3) and the magazine (3) is located in the holder.