JPH053890B2 - - Google Patents

Description

Detailed Description of the Invention (Technical Field of the Invention) The present invention relates to an apparatus for processing measurement data obtained by an automatic blood analyzer that performs biochemical analysis or immunological analysis, and particularly relates to an apparatus for processing measurement data obtained by an automatic blood analyzer that performs biochemical analysis or immunological analysis. The present invention relates to a data processing device for an automatic blood analyzer that can display and record data patterns of obtained measurement data in a desired state.

(Prior art and its problems) As is well known, an automatic blood analyzer dispenses a required amount of a reagent corresponding to a measurement item into a serum sample, causes the two to react, measures the state of the reaction by an appropriate means, The measurement data is displayed on a display, and the measurement data is printed and recorded on a printer.

By the way, in the case of conventional blood automatic analyzers,
The measurement data processing device is configured to process and display, for example, only data obtained by the end point method or only data obtained by the rate method. Since the reaction time cannot be arbitrarily selected, analysis data suitable for the analysis item cannot be monitored and recorded, and as a result, the reliability of measurement accuracy control is low, making it extremely inconvenient. Was.

In addition, since the conventional measurement data processing device mentioned above only displays the calculated data of data measured at multiple wavelengths, it is not possible to directly see minute changes in response, and it is not possible to directly see minute changes in response, for example, whether the filter is good or bad. There were also problems in terms of equipment accuracy control such as checking.

(Object of the Invention) This invention was devised in view of the current situation, and its purpose is to arbitrarily select and monitor measurement data processing in an automatic blood analyzer using a method suitable for the measurement item. In addition, reactions corresponding to measurement items can be arbitrarily selected as direct data or calculated data and recorded on the monitor, dramatically improving analysis and device quality control in automatic blood analyzers. The present invention aims to provide a data processing device in an automatic blood analyzer that can perform the following steps.

(Structure of the Invention) In order to achieve the above object, the present invention provides a data processing device for an automatic blood analyzer that measures a blood sample at a plurality of wavelengths. a logarithmic converter that logarithmically converts the data, an A/D converter that converts the measurement data input to the logarithmic converter into a digital signal, a memory circuit that stores the signal, and a plurality of digital signals stored in the memory circuit. Controls a data judgment circuit that reconstructs measurement data into desired data, a monitor device that displays this reconstructed data, a logarithmic converter, an A/D converter, a memory circuit, a data judgment circuit, and a monitor device. and a control device to
The data judgment circuit includes a measurement method selection circuit that selects either rate method measurement or endpoint method measurement, a start selection circuit that selects an effective part of measurement data regarding multiple wavelengths, and measurement data regarding a specific wavelength or multiple wavelengths. and a wavelength selection circuit that selects any of the calculated measurement data, and simultaneously displays the measurement data that has passed through these data judgment circuits in any desired combination on the same screen of the monitor device. It is structured as follows.

(Embodiments) The present invention will be described in detail below based on embodiments shown in the accompanying drawings.

As shown in FIG. 1, the data processing device A of the automatic blood analyzer according to this embodiment irradiates a serum sample 1 into which reagents corresponding to measurement items have been dispensed with measurement light l of a plurality of wavelengths (as shown in the figure). (In the example, the case where two wavelengths are irradiated is illustrated.), a plurality of light receiving elements 2 that convert the amount of change in absorbance (OD value) due to the serum sample 1 into voltage, and light received by these light receiving elements 2 are used. an amplifier 3 that amplifies the amount of voltage change; a logarithmic converter 4; and an A/D converter 5 that converts the measurement data input to the logarithmic converter 4 into a digital signal.
a memory circuit 6 that stores this digital signal;
A data judgment circuit 8 processes the basic data stored in this memory circuit 6 into an arbitrary data value.
and a monitor device 9 that simultaneously displays various data processed by the data judgment circuit 8 on the same screen.
and a microcomputer 7 that controls the recording device 10, the light receiving element 2, the amplifier 3, the logarithmic converter 4, the A/D converter 5, the memory circuit 6, the data determination circuit 8, the monitor device 9, and the recording device 10.
It consists of and.

The light receiving element 2 may be of the type that receives the measurement light l that has passed through a filter that switches and selects the wavelength corresponding to each measurement item, or may be of the diffraction grating type. Selection of the receiving wavelength is controlled by the microcomputer 7 in accordance with the measurement item.

Further, as shown in FIG. 1, the data judgment circuit 8 selects the measurement method, that is, the rate method or the end point method, in order to confirm the amount of chemical change in the sample that is suitable for the measurement item. A measurement method selection circuit 11 and a monitor device 9 for
a range circuit 12 that expands or reduces the data value displayed on the memory circuit 6; and a start select circuit 1 that selects a valid portion of the data input to the memory circuit 6.
3, and a wavelength selection circuit 15 that selects only data of one of the plurality of wavelengths, or selects the data calculated by the arithmetic circuit 14 from the data obtained from the plurality of wavelengths.

As described above, the measurement method selection circuit 11 selects data corresponding to the measurement item so that the data can be obtained by the rate method or the endpoint method.

The range circuit 12 enlarges or reduces arbitrary data displayed on the monitor device 9 by more than twice. For example, when enlarging the data shown in the graph data diagram shown in Figure 2, the desired enlarged data can be obtained by leaving the timetable on the horizontal axis as is and doubling the OD value on the vertical axis. . When reducing data, the desired reduced data can be obtained by performing the reverse operation.

When the measured data is displayed as a graph value as shown in FIG. 2, the start select circuit 13 determines that when the measured data is displayed as a graph value as shown in FIG. Since this is an inappropriate value and can be ignored, the start select circuit 13 cuts off the data value up to the a position and performs selection control to obtain the data value after the a position, which is reliable as a data value. This is to confirm the best position.

Since the data values obtained by calculating the data values obtained at two wavelengths cancel each other out, the wavelength selection circuit 15 selects the two wavelengths when it is desired to directly observe minute changes in the reaction. By selecting the data value of one of the wavelengths and displaying it on the monitor device 9, an abnormal value of the data is recognized and, for example, the quality of the filter is checked. In other words, in this circuit 15, in the case of one wavelength display, the wavelength data value is displayed on the monitor device 9 without passing through the arithmetic circuit 14, and in the case of displaying the calculated data with two wavelengths on the monitor device 9, the arithmetic circuit 14 The data value calculated by is displayed.

The monitor device 9 displays a plurality of data obtained by the data determination circuit 8 by arranging and displaying a plurality of data simultaneously on the same screen in an arbitrary combination.

For example, as shown in FIG.
If six pieces of data can be displayed on one screen, the following displays can be made in A to F in FIG.

For example, in part A, data values from dual wavelength measurements are obtained using the end point method and are displayed as normal OD values.

In the (b) part, data values from dual wavelength measurements are obtained using the end point method and are displayed as enlarged OD values.

In part C, data values from dominant wavelength measurements are obtained using the end point method and are displayed as enlarged OD values.

In the second part, the data values for the additional wavelengths are obtained using the end point method and are displayed as enlarged OD values.

In the E part, the data values obtained by processing the data values obtained at two wavelengths using the rate method are usually displayed as OD values.

In addition, in the F part, data values obtained at the main wavelength or additional wavelength are obtained using the rate method and are displayed as enlarged OD values.

Of course, the above display modes are merely examples, and any combination is possible. For example, various measurement items of the same specimen may be arranged in order to be displayed in sections A to B.

In addition, when displaying arbitrary data in any part of parts A to F, the arbitrary data can be displayed in any part by operating the position select circuit 16 connected to the microcomputer 7. You can also do it.

In the above embodiment, the case where six pieces of data are displayed on the same screen is exemplified, but the present invention is not limited to this, and it goes without saying that the structure may be configured to display any number of pieces of data. It is.

(Effects of the Invention) Since the present invention has the above configuration, it is possible to simultaneously display a plurality of pieces of data obtained by an automatic blood analyzer on the same screen, so that the quality of the filter and the condition of the stirring device can be displayed simultaneously. Check and
Alternatively, the quality of the reaction can be easily confirmed, and as a result, the accuracy of analysis accuracy control and device accuracy control can be dramatically improved.

[Brief explanation of the drawing]

The drawing shows a data processing device for an automatic blood analyzer according to an embodiment of the present invention.
FIG. 2 is a block diagram of the same device, FIG. 2 is a graph showing an example of a data display mode, and FIG. 3 is an explanatory diagram showing one mode of simultaneously displaying a plurality of data on the same screen. A...Data processing device, l...Measurement light, 1...
Serum sample, 2... Light receiving element, 4... Logarithmic converter,
5...A/D converter, 6...memory circuit, 7...
...Microcomputer, 8...Data judgment circuit, 9...Monitor device, 10...Recording device, 1
1...Measurement method selection circuit, 12...Range circuit, 1
3...Start selection circuit, 14...Arithmetic circuit, 15...Wavelength selection circuit.

Claims (1)

[Claims] 1. A data processing device for an automatic blood analyzer that measures blood samples at multiple wavelengths, which device includes a logarithmic converter that logarithmically converts the amount of change in absorbance measured between each wavelength, and a logarithmic converter that logarithmically converts the amount of absorbance change measured between each wavelength. an A/D converter that converts the measured data into a digital signal;
A memory circuit that stores the same signal, a data judgment circuit that reconfigures the plurality of measurement data stored in this memory circuit into desired data, a monitor device that displays the reconfigured data, and a logarithmic converter for these. , an A/D converter, a memory circuit, a data judgment circuit, and a control device that controls a monitor device, and the data judgment circuit includes a measurement method selection circuit that selects either rate method measurement or endpoint method measurement. , a start select circuit that selects a valid portion of the measurement data regarding multiple wavelengths;
It has a wavelength selection circuit that selects either measurement data related to a specific wavelength or calculated measurement data related to a plurality of wavelengths, and a device that arbitrarily monitors the measurement data that has passed through these data judgment circuits in a desired combination. 1. A data processing device for an automatic blood analyzer, characterized in that the data processing device is configured to simultaneously display data on the same screen.