G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 35/02 (2006.01) G06K 17/00 (2006.01) G01N 35/00 (2006.01)
Patent
CA 2173902
An analyzer for automatic performance of analytical operations in which the liquid samples for analysis and the required reagents are held in suitable vessels (11, 12). In order to increase the number of vessels which can be received in the analyzer and to simplify the device for reading the bar code labels, the analyzer contains the following components: a) at least two vessel holders (21-26) disposed parallel to one another in the analyzer, a number of vessels (11) of the same kind (e.g. sample-containing vessels) being disposed in each vessel holder, each vessel holder having an elongate body (41) manufactured in one piece and containing a single straight row of identical elongate chambers (51-1 to 51-15) each for receiving one vessel (11), all the chambers (51-1 to 51-15) having a common base (42) and being disposed perpendicularly thereto, adjacent chambers being separated by a partition (43), the inner surface of a side wall of each chamber bearing a first bar code label (44) for detecting the absence of a vessel (11) in the chamber, the outer surface of a side wall of each chamber bearing a second bar code label (45) for detecting the position of the chamber in the vessel holder, and the first and the second bar code labels (44, 45) being readable by a bar code reader from one and the same side of the vessel holder, b) a bar code reader (61) fixedly disposed in the analyzer and used to read all the bar code labels on each vessel holder, and c) means (62) for automatically adjusting the focal range of the bar code reader (61) in dependence on the distance between it and the vessel holder.
Buhler Jurg Peter
Muller Siegfried Karl
F.hoffmann-La Roche Ag
Gowling Lafleur Henderson Llp
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