Biosensing meter with pluggable memory key

G - Physics – 01 – N

Patent

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Details

G01N 27/26 (2006.01) C12M 1/34 (2006.01) C12M 1/40 (2006.01) C12Q 1/54 (2006.01) C12Q 1/60 (2006.01) G01N 27/327 (2006.01) G01N 27/49 (2006.01) G01N 33/487 (2006.01) G01N 35/00 (2006.01)

Patent

CA 2153884

A biosensing meter (10) is en- abled to receive a sample strip (18) that includes a sample well (20) with an analyte reactant therein and electrodes (24, 26) in contact there- with. The biosensing meter (10) includes an excitation supply (44) for supplying potentials to a sam- ple strip electrode (24). A sense amplifier (50) is also provided for connection to another electrode (26) of an inserted sample strip (18) and produces an output signal indica- tive of sensed currents when an an- alyte containing fluid is present in the strip's sample well. A pluggable memory key (30) is insertable into the meter (10) and includes a plural- ity of stored parameter values and procedure routines that control op- erations of the meter. A micropro- cessor (59) is responsive to a pro- cedure routine and parameter values accessed from the pluggable mem- ory key (30) to cause the excitation supply to apply a plurality of poten- tials for preset durations, both the values of the potentials and the time duration of their application are de- termined from parameter values de- rived from the memory key.

Biomètre (10) destiné à recevoir une bandelette porte-échantillon (18) comportant un puits d'échantillonnage (20) recevant le réactif de l'analyte et des électrodes (24, 26) en contact avec ce dernier. Le biomètre (10) comporte une source d'excitation (44) mettant sous tension l'une des électrodes (24) de la bandelette porte-échantillon (18). Un amplificateur de détection (50), connecté à une autre électrode (26) de la bandelette porte-échantillon (18), fournit un signal de sortie fonction du courant détecté quand un fluide contenant l'analyte est présent dans le puits d'échantillonnage de la bandelette. Une clef mémoire (30) enfichable dans le biomètre (10) renferme de nombreux paramètres et programmes de traitement régissant le fonctionnement du biomètre. Un microprocesseur (59) en réponse aux susdits paramètres et programmes de la clef mémoire (30) amène la source excitatrice à produire différentes tensions pendant des durées données, ces tensions et durées étant fonction de paramètres contenus dans la clef mémoire.

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