Automatic analyzer and timing setting method

An automatic analyzer comprising:

• a reaction disk where a plurality of reaction cells are held on a circumference and configured to execute a rotation operation;
• a light source configured to emit light;
• a spectroscopic analyzer configured to detect transmitted light that transmits through a reaction cell crossing an optical axis of the light source when the reaction disk executes the rotation operation;
• and
• a control unit including a photometry unit configured to extract, from a photometric waveform, a photometric waveform of a photometric value calculation period used for calculating a light intensity value regarding a liquid accommodated in the reaction cell, the photometric waveform being obtained by sampling a photometry signal that reflects a light intensity value of the transmitted light output from the spectroscopic analyzer,
• wherein the control unit acquires a photometric waveform for each of the plurality of reaction cells held on the reaction disk from a photometry signal based on a photometry trigger signal, and sets the individual photometric value calculation period for each of the plurality of reaction cells based on a time domain representing a flat waveform, the photometry signal being obtained by executing photometry of the plurality of reaction cells in an empty state or in a state where blank water is accommodated, the photometry trigger signal representing that each of the plurality of reaction cells crosses the optical axis of the light source, and the time domain being obtained regarding the photometric waveform for each of the plurality of reaction cells.

An automatic analyzer comprising:

• a reaction disk where a plurality of reaction cells are held on a circumference and configured to execute a rotation operation;
• a light source configured to emit light;
• a spectroscopic analyzer configured to detect transmitted light that transmits through a reaction cell crossing an optical axis of the light source when the reaction disk executes the rotation operation;
• and
• a control unit including a photometry unit configured to extract, from a photometric waveform, a photometric waveform of a photometric value calculation period used for calculating a light intensity value regarding a liquid accommodated in the reaction cell, the photometric waveform being obtained by sampling a photometry signal that reflects a light intensity value of the transmitted light output from the spectroscopic analyzer,
• wherein the control unit acquires a photometric waveform for each of the plurality of reaction cells held on the reaction disk from a photometry signal based on a photometry trigger signal, and sets the photometric value calculation period common to the plurality of reaction cells according to a rotational speed of the reaction disk based on a time domain representing a flat waveform, the photometry signal being obtained by executing photometry of the plurality of reaction cells in an empty state or in a state where blank water is accommodated, the photometry trigger signal representing that each of the plurality of reaction cells crosses the optical axis of the light source, and the time domain being obtained regarding the photometric waveform for each of the plurality of reaction cells.

A timing setting method in an automatic analyzer including a reaction disk where a plurality of reaction cells are held on a circumference and configured to execute a rotation operation, a light source configured to emit light, a spectroscopic analyzer configured to detect transmitted light that transmits through a reaction cell crossing an optical axis of the light source when the reaction disk executes the rotation operation, and a control unit including a photometry unit configured to extract, from a photometric waveform, a photometric waveform of a photometric value calculation period used for calculating a light intensity value regarding a liquid accommodated in the reaction cell, the photometric waveform being obtained by sampling a photometry signal that reflects a light intensity value of the transmitted light output from the spectroscopic analyzer,

• the timing setting method comprising allowing the control unit:
• to acquire a photometric waveform for each of the plurality of reaction cells held on the reaction disk from a photometry signal based on a photometry trigger signal, the photometry signal being obtained by executing photometry of the plurality of reaction cells in an empty state or in a state where blank water is accommodated, the photometry trigger signal representing that each of the plurality of reaction cells crosses the optical axis of the light source, and
• to set the individual photometric value calculation period for each of the plurality of reaction cells based on a time domain representing a flat waveform obtained regarding the photometric waveform for each of the plurality of reaction cells.

A timing setting method in an automatic analyzer including a reaction disk where a plurality of reaction cells are held on a circumference and configured to execute a rotation operation, a light source configured to emit light, a spectroscopic analyzer configured to detect transmitted light that transmits through a reaction cell crossing an optical axis of the light source when the reaction disk executes the rotation operation, and a control unit including a photometry unit configured to extract, from a photometric waveform, a photometric waveform of a photometric value calculation period used for calculating a light intensity value regarding a liquid accommodated in the reaction cell, the photometric waveform being obtained by sampling a photometry signal that reflects a light intensity value of the transmitted light output from the spectroscopic analyzer,

• the timing setting method comprising allowing the control unit:
• to acquire a photometric waveform for each of the plurality of reaction cells held on the reaction disk from a photometry signal based on a photometry trigger signal, the photometry signal being obtained by executing photometry of the plurality of reaction cells in an empty state or in a state where blank water is accommodated, the photometry trigger signal representing that each of the plurality of reaction cells crosses the optical axis of the light source, and
• to set the photometric value calculation period common to the plurality of reaction cells according to a rotational speed of the reaction disk based on a time domain representing a flat waveform obtained regarding the photometric waveform for each of the plurality of reaction cells.

An automatic analyzer comprising:

• a reaction disk where a plurality of reaction cells are held on a circumference and configured to execute a rotation operation;
• a light source configured to emit light;
• a spectroscopic analyzer configured to detect transmitted light that transmits through a reaction cell crossing an optical axis of the light source when the reaction disk executes the rotation operation;
• and
• a control unit including a photometry unit configured to extract, from a photometric waveform, a photometric waveform of a photometric value calculation period used for calculating a light intensity value regarding a liquid accommodated in the reaction cell, the photometric waveform being obtained by sampling a photometry signal that reflects a light intensity value of the transmitted light output from the spectroscopic analyzer,
• wherein the control unit
• acquires a photometric waveform for each of the plurality of reaction cells held on the reaction disk from a photometry signal based on a photometry trigger signal, the photometry signal being obtained by executing photometry of the plurality of reaction cells in an empty state or in a state where blank water is accommodated, the photometry trigger signal representing that each of the plurality of reaction cells crosses the optical axis of the light source,
• obtains, regarding the photometric waveform acquired for the plurality of reaction cells, a photometry available period that is a time period where the waveform is flat and a photometry start available time from rising of the photometry trigger signal to start of the photometry available period,
• sets a correction time that is a photometry start available time common to the plurality of reaction cells as a value more than a maximum value of the photometry start available time obtained for each of the plurality of reaction cells, and
• sets the photometric value calculation period based on the set correction time.