Automatic analysis device and analysis method
First Claim
1. An automatic analysis device, comprising:
- a sample vessel placing section in which a first sample vessel containing a biological sample to be analyzed and a second sample vessel containing a blood clot time reference sample that has a known blood clot time are placed;
a reagent vessel placing section in which a plurality of reagent vessels each containing a reagent and each having a barcode attached thereto are placed;
a reaction vessel;
a sample dispensing mechanism which dispenses the biological sample or the blood clot time reference sample into the reaction vessel;
a reagent dispensing mechanism which dispenses the reagent into the reaction vessel from the reagent vessel;
a detector which detects a signal value that changes over time in accordance with a mixing reaction of the reagent and the biological sample or the blood clot time reference sample;
a barcode reader;
a control section programmed to;
control the barcode reader to read information from a barcode on a first reagent vessel of the plurality of reagent vessels,obtain an expected blood clot time based on the information read from the barcode,control the detector to detect first signal values from a mixture of the blood clot time reference sample and the reagent and generate a first reaction curve based on the first signal values,determine a signal reference value based on the first reaction curve and the expected blood clot time,store the signal reference value in association with identification information of the reagent,control the detector to detect second signal values from a mixture of the biological sample and the reagent and generate a second reaction curve based on the second signal values,determine whether the expected value of blood clotting time is in a predetermined range,upon determining the blood clotting time is not in the range, issue an alarm on a display, anddetermine the blood clotting time of the biological sample based on the signal reference value and the second reaction curve of the biological sample.
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Accused Products
Abstract
A signal reference value (SLocal) is set at which a blood coagulation reaction time (T) of a blood coagulation time reference sample measured on the basis of the result of comparing a signal value (amount of transmitted light, amount of scattered light, amount of fluorescence, or turbidity) pertaining to blood coagulation time that varies temporally according to the mixing and reaction of the blood coagulation time reference sample and a reagent and a signal reference value (S) corresponds to an expected value (Te) for the blood coagulation reaction time that has been set beforehand so as to correspond to the blood coagulation time reference sample. As a result, it is possible to use the blood coagulation time reference sample to determine the state of the reagent and enhance the reliability of measurement results by setting a unique signal reference value for each reagent container.
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Citations
6 Claims
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1. An automatic analysis device, comprising:
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a sample vessel placing section in which a first sample vessel containing a biological sample to be analyzed and a second sample vessel containing a blood clot time reference sample that has a known blood clot time are placed; a reagent vessel placing section in which a plurality of reagent vessels each containing a reagent and each having a barcode attached thereto are placed; a reaction vessel; a sample dispensing mechanism which dispenses the biological sample or the blood clot time reference sample into the reaction vessel; a reagent dispensing mechanism which dispenses the reagent into the reaction vessel from the reagent vessel; a detector which detects a signal value that changes over time in accordance with a mixing reaction of the reagent and the biological sample or the blood clot time reference sample; a barcode reader; a control section programmed to; control the barcode reader to read information from a barcode on a first reagent vessel of the plurality of reagent vessels, obtain an expected blood clot time based on the information read from the barcode, control the detector to detect first signal values from a mixture of the blood clot time reference sample and the reagent and generate a first reaction curve based on the first signal values, determine a signal reference value based on the first reaction curve and the expected blood clot time, store the signal reference value in association with identification information of the reagent, control the detector to detect second signal values from a mixture of the biological sample and the reagent and generate a second reaction curve based on the second signal values, determine whether the expected value of blood clotting time is in a predetermined range, upon determining the blood clotting time is not in the range, issue an alarm on a display, and determine the blood clotting time of the biological sample based on the signal reference value and the second reaction curve of the biological sample. - View Dependent Claims (2, 3, 4, 5)
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6. A sample analysis method using an automatic analysis device which includes:
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a sample vessel placing section in which a first sample vessel containing a biological sample to be analyzed and a second sample vessel containing a blood clot time reference sample that has a known blood clot time are placed; a reagent vessel placing section in which a plurality of reagent vessels each containing a reagent and each having a barcode attached thereto are placed; a reaction vessel; a sample dispensing mechanism which dispenses the biological sample or the blood clot time reference sample into the reaction vessel; a reagent dispensing mechanism which dispenses the reagent of the into the reaction vessel from the reagent vessel; a detector which detects a signal value that changes over time in accordance with a mixing reaction of the reagent and the biological sample or the blood clot time reference sample; and a barcode reader; and a control section, the method comprising steps executed by the control section of; controlling the barcode reader to read information from a barcode on a first reagent vessel of the plurality of reagent vessels; obtaining an expected blood clot time based on the information read from the barcode; controlling the detector to detect first signal values from a mixture of the blood clot time reference sample and the reagent and generate a first reaction curve based on the first signal values; determining a signal reference value based on the first reaction curve and the expected blood clot time; storing the signal reference value in association with identification information of the reagent; and controlling the detector to detect second signal values from a mixture of the biological sample and the reagent and generate a second reaction curve based on the second signal values; determining whether the expected value of blood clotting time is in a predetermined range; upon determining the blood clotting time is not in the range, issue an alarm on a display; and determining the blood clotting time of the biological sample based on the signal reference value and the second reaction curve of the biological sample.
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Specification