CN2789756Y - Rotary disc type fix colorimetric cup - Google Patents

Abstract

A rotary disc type fixing colorimetric cup relates to a biochemical analyser. According to the design proposal provided by the utility model, a plurality of partition plates are arranged on a rotary disc, and a colorimetric cup is formed between every two partition plates; a reagent slot is arranged at the bottom of the colorimetric cup, and a sample platform is arranged on the outer wall of the middle part of the colorimetric cup. The colorimetric cup can be used for testing a plurality of samples at the same time, so test efficiency is high; because each of the samples is tested in each colorimetric cup, so the problem of cross infection is avoided.

Description

Rotating disc type is cuvette fixedly

Technical field

The utility model relates to Biochemical Analyzer, and specifically a kind of rotating disc type is cuvette fixedly.

Background technology

Cuvette be the most basic in the Biochemical Analyzer also be most important device.In the prior art flow-type Biochemical Analyzers that adopt more, a suction tube and a discharging tube are arranged on the cuvette of this analyser, discharging tube is connected on the peristaltic pump, peristaltic pump rotates the negative pressure that produces, the potpourri of liquid reagent and sample is sucked cuvette, detect for analyser, when measuring next sample, wash away the residue of previous sample by the potpourri of next sample, stay liquid in the cuvette as measuring thing, this mode improves to some extent than old-fashioned spectrophotometer, but the cross pollution between the sample before and after causing easily, and detection speed is slower, as do rate method when test, the operator when sucking sample, must wait for that two minutes results come out after, do next sample again, work efficiency is lower.

Summary of the invention

The purpose of this utility model is to design fixedly cuvette of a kind of rotating disc type, and this cuvette can be tested a plurality of samples simultaneously, so testing efficiency is than higher; And, therefore avoided the problem of cross-infection because each sample is all finished test in cuvette separately.

According to design proposal provided by the utility model, some dividing plates are set on rotating disk, between per two dividing plates, form a cuvette, be reagent trough in the bottom of cuvette, outer wall has example platform at the middle part of cuvette.

Angle α between the bottom surface of example platform and the external wall of upper portion of cuvette is smaller or equal to 90 degree.The external wall of upper portion of reagent trough is outward-dipping.The inside and outside wall of the optical measurement part of cuvette is parallel minute surface.

The utility model has the advantages that: 1, owing on rotating disk, be provided with some dividing plates, between dividing plate, form cuvette, thereby solved the storage problem of separating of sample to be tested and reagent.2, the reagent that is added in the reagent trough can be measured reagent blank before reaction, eliminates the deviation of cuvette automatically.3, the mensuration of each test event is all independently finished in the cuvette separately, does not therefore have cross pollution, has improved the accuracy of test.4, reach design temperature after, the automatic mixing of sample and reagent, several cuvettes react simultaneously, measure simultaneously, test speed is the several times of the single mobile Biochemical Analyzer of tradition.

Description of drawings

Fig. 1 is a structural drawing of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

Embodiment

As shown in the figure: some dividing plates 11 being set on rotating disk 4, forming a cuvette 3 on 11 on per two dividing plates, is reagent trough 7 in the bottom of cuvette 3, and outer wall has example platform 6 at the middle part of cuvette 3.The angle α that the external wall of upper portion of the bottom surface of example platform 6 and cuvette 3 is 5 is smaller or equal to 90 degree, the sample that is placed on the example platform 6 is flowed in the angle that the outer wall 5 by the bottom surface of example platform 6 and cuvette 3 forms naturally, avoid in the reagent trough 7 of sample below under state of nature, flowing into.The external wall of upper portion 8 of reagent trough 7 is outward-dipping.Be beneficial to liquid reagent and flowed toward eminence by low when centrifugal rotation, the inside and outside wall 10,9 of the optical measurement part of cuvette 3 be parallel transparent minute surface, causes reflection and reflects when preventing that monochromatic light from seeing through, and influences the degree of accuracy of absorbance measuring.Central porose 1 at rotating disk 4 can drive the gear train that rotating disk 4 rotates so that install, and the upwardly extending handle 2 of 1 arranged outside in the hole is so that the operator picks and places rotating disk 4.Numerical order numbering is set, so that record during operation on the external wall of upper portion 5 of each cuvette 3.

Adopt the fixedly Biochemical Analyzer made of cuvette of rotating disc type, because several fixing cuvettes 3 are arranged on rotating disk 4, and numbering is clearly arranged all on each cuvette 3, the operator can add several samples and liquid reagent according to the order of numbering at every turn simultaneously, because each cuvette all is spaced from each other, can not cause chemical reaction, when the rotating disc type that adds sample fixedly cuvette put into the constant temperature enclosure of biochemical analysis tester, press start button, slowly rotation of rotating disk 4 beginnings, liquid begins to heat, after waiting to reach design temperature, rotating disk 4 high speed rotating, liquid reagent in the reagent trough 7 is subjected to action of centrifugal force, rush to example platform 6 along outward-dipping outer wall 8, reagent mixes rapidly with sample, mixed liquid stops dropping in the reagent trough 7 because of the urgency of rotating disk 4, repeated multiple times, make sample and reagent obtain abundant mixing, then, rotating disk 4 uniform rotation, homogeneous beam sees through the inside and outside wall 10 of each cuvette 3 measure portion, 9, the photelectric receiver that its transmission light intensity is positioned at opposite side receives, and by the computing of robot calculator, obtains the concentration value of each sample.

Claims (6)

1, the fixing cuvette of rotating disc type, it is characterized in that: some dividing plates (11) are set on rotating disk (4), forming a cuvette (3) between per two dividing plates (11), is reagent trough (7) in the bottom of cuvette (3), at the middle part outer wall of cuvette (3) example platform (6) is arranged.

2, the fixing cuvette of rotating disc type according to claim 1 is characterized in that: the angle α between the external wall of upper portion (5) of the bottom surface of example platform (6) and cuvette (3) is smaller or equal to 90 degree.

3, the fixing cuvette of rotating disc type according to claim 1, it is characterized in that: the external wall of upper portion (8) of reagent trough (7) is outward-dipping.

4, the fixing cuvette of rotating disc type according to claim 1 is characterized in that: inside and outside wall (10), (9) of the optical measurement part of cuvette (3) are parallel minute surface.

5, the fixing cuvette of rotating disc type according to claim 1 is characterized in that: in central porose (1) of rotating disk (4), and the upwardly extending handle of the arranged outside of (1) (2) in the hole.

6, the fixing cuvette of rotating disc type according to claim 1 is characterized in that: the external wall of upper portion (5) in each cuvette (3) is provided with the numerical order numbering.