Self-calibrating single-use sensing device for clinical...

Details Self-calibrating single-use sensing device for clinical... Self-calibrating single-use sensing device for clinical...

G - Physics

01

N

73/0.5

G01N 27/30 (2006.01) G01N 27/416 (2006.01)

Patent

CA 1231548

SELF-CALIBRATING SINGLE-USE SENSING DEVICE FOR CLINICAL CHEMISTRY ANALYZER ABSTRACT OF THE DISCLOSURE A single-use sensing device for a clinical chemistry analyzer system includes a carrier which supports a capillary passage . Species selective sensors are located within a test chamber portion of the capillary passage . A rotatable multichamber reservoir having a calibrant chamber for holding calibrant fluid and a sample chamber for containing a sample fluid is rotated first to a calibrant test position and then to a sample test position. In the calibrant test position, the calibrant chamber is connected to the inlet of the capillary passage to draw calibrant fluid into the test chamber . In the sample test position, the sample chamber is connected to the inlet to draw sample fluid into the test chamber and purge the calibrant fluid from the test chamber . A set of sensor readings are taken at each position, and concentration values are derived from the two sets of readings.

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