JPH0715475B2 - Automatic chemical analyzer - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to an automatic chemical analyzer equipped with a quality control function.

[Technical background of the invention and its problems] In an automatic chemical analyzer, when measuring and analyzing a large number of patient specimens, serum (control serum) of known concentration is measured at certain intervals, and based on the measurement data. There is a method to judge the quality of each item of a patient sample, which is generally called quality control (QC).

By the way, this quality control is performed by interrupting the measurement sequence of the patient sample at an arbitrarily designated interval in advance, but the conventional quality control methods have the following problems.

For example, under the measurement conditions as shown in FIG. 3, that is, in the measurement item set, the number of five types of items A to E is set, and only the C item is not quality controlled, and the other four items are quality controlled. specify. The number of samples is 7, and
With the number of intervals for quality control being every 3 samples, the 1st to 3rd samples for each item are the 1st group, the 4th to 6th samples are the 2nd group, and the 7th sample is the 3rd When the groups are set and the first group to the third group are measured, as is apparent from the figure, the third group of the A item, the B item, the first group and the second group, the third group, the D item. 2nd group, E item 3rd
Quality control is performed in the group even though there are no samples to be tested for quality control (in this case, samples for the number of intervals measured after the control serum measurement).
Accuracy control It is often useless to perform measurement for all designated items, and there is a problem that efficient quality control cannot be performed.

In Fig. 3, ON indicates that quality control is specified, OFF indicates that quality control is not specified, ◯ indicates that quality control is performed, × indicates that quality control is not performed, and ● indicates Indicates that the item is selected to be measured in the sample, and the ▲ indicates that the item is selected to be unnecessary in the sample.

[Object of the Invention] The present invention has been made in view of the above circumstances, and has an automatic chemical analyzer having a function capable of improving quality control efficiency without performing measurement for useless quality control. It is intended to provide.

[Summary of the Invention] An outline of the present invention for achieving the above object is to specify all or a part of the measurement items for each sample for a plurality of predetermined measurement items, and to specify the designated measurement items. Designating means for designating whether or not to perform quality control, measuring means for measuring each sample based on the designation of this designating means, and inspecting the content designated by the designating means for every predetermined number of specimens, When the measurement item is specified for at least one sample out of the number of samples and the quality control is specified, the determination means for determining the measurement of the quality control sample and the determination means of the determination means. And a control means for executing the measurement of the quality control sample according to the determination.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIG. The apparatus of the embodiment shown in the figure has an input means 4 such as a keyboard for transmitting designated item information for quality control, quality control serum interval information (interval number 1, 2, ...) And item selection information, Input the item selection information and store it in the memory,
Further, the item selection information setting unit 1 as the first means for sending to the control unit 3 which will be described later, the designated item information and the quality control serum interval information are input and stored and held in the memory and the control unit 3 The quality control operation information setting unit 2 as a second means for sending the item selection information, the item selection information from the item selection information setting unit 1, the designated item information from the quality control operation information setting unit 2 and the quality control serum interval information. The control unit 3 which is a third means for inputting and sending a control signal for quality control to the sampling unit 5 provided in the main body of the automatic chemical analyzer based on these, and each set in the sampling unit 5. The display unit 6 is configured to display items and information indicating the samples belonging to each group.

Next, the operation of the apparatus having the above configuration will be described with reference to the explanatory diagram showing the sequence of quality control in this apparatus shown in FIG. Incidentally, each symbol shown in the same figure represents the same contents as those shown in FIG. Also, the measurement setting conditions are the same as those shown in FIG.

While looking at the sample information displayed on the display unit 6, the operator designates the designated item information of the quality control for the items A, B, etc. from the input unit 4 (in this embodiment, designates five items A to E, Quality control is not performed for item C, and quality control is set for the other four items), quality control serum interval information (interval number 3 in this embodiment), and item selection information for each sample (this embodiment). Enter 7 samples). In this case, it is assumed that item selection is performed as shown in FIG. That is, the ● mark measures the item of the sample.
▲ is not measured. For example, it can be seen that the item A is set to be measured in the third sample, the item E is not set to be measured in the sixth sample, and so on.

Of the above-mentioned information set in this way, the item selection information is input to the item selection information setting unit 1 and temporarily stored in the memory. Further, the designated item information and the quality control serum interval information are input to the quality control operation information setting unit 2 and temporarily stored in the memory here.

When the control unit 3 takes in the item selection information, the designated item information, and the quality control serum interval information, and tries to measure the quality control serum based on these, it comes after the determination of whether the quality control of the item is performed or not. According to the item selection information for the number of sample intervals, a control signal for interrupting the measurement sequence of each sample in the sampling unit 5 is sent, and the quality control is executed according to the sequence shown in FIG.

As a result, for example, the measurement for accuracy control for the B item first group, the D item second group, etc. can be performed from FIG.
This item is omitted because there is no measurement designation for that item in the target group, that is, all three items are marked with a triangle. Similarly, the quality control measurement for the third group of item A, the second group of item B, the third group, and the third group of item E is also omitted.

That is, even if the quality control is designated, the quality control of the group in which the sample to be tested does not exist is automatically excluded.

The present invention is not limited to the above-described embodiment, and when the determination of whether or not to perform quality control is made not only in the subsequent group but also in the previous group, and the effective number of item selections within the group. In the embodiment, the accuracy control is performed if there is at least one, but it goes without saying that various modifications can be made without departing from the scope of the invention such as setting this number to an arbitrary value.

[Effect of the Invention] According to the present invention described in detail above, when quality control of a large number of samples is performed, it is possible to automatically exclude a sample group in which no test target item exists and perform quality control, and measurement efficiency is improved. Further, it is possible to provide an automatic chemical analyzer having a high efficiency of designated operation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view showing an apparatus of an embodiment of the present invention, FIG. 2 is an explanatory view showing a quality control sequence in the apparatus, and FIG. 3 is an example of a conventional quality control sequence. FIG. 1 ... Item selection information setting section, 2 ... Quality control operation information setting section, 3 ... Control section, 4 ... Input means, 5 ... Sampling unit, 6 ... Display means.

Claims (1)

[Claims] 1. Designating means for designating all or part of the measurement items for each sample for a plurality of predetermined measurement items, and designating whether or not quality control is performed for the designated measurement items. Measuring means for measuring each of the specimens based on the designation by the designating means, and monitoring the designation contents by the designating means for each predetermined number of specimens, and designating a measurement item for at least one specimen of the predetermined number of specimens If the quality control sample is designated to perform quality control, the determination means determines to measure the quality control sample, and the control means to perform the measurement of the quality control sample by the determination of the determination means. An automatic chemical analysis device comprising: