Blood cell detector, blood analyzer and blood analyzing method using the detector
First Claim
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1. A blood cell detector comprising:
- an orifice section having a single orifice;
a first supplying section connected to the orifice section for supplying a first blood specimen into the orifice section;
a second supplying section connected to the orifice section for supplying a second blood specimen into the orifice section; and
first and second electrodes provided on opposite sides of the orifice for detecting a change in impedance of each of the first and second blood specimens when the first and second blood specimens are selectively caused to pass through the orifice wherein the first and second supplying sections cause the first and second blood specimens to pass through the orifice in opposite directions.
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Abstract
A blood cell detector includes an orifice section having a single orifice, a first supplying section for supplying a first blood specimen into the orifice section, a second supplying section for supplying a second blood specimen into the orifice section, and first and second electrodes provided on opposite sides of the orifice for detecting a change in impedance of each of the first and second blood specimens when the first and second blood specimens are selectively caused to pass through the orifice.
11 Citations
21 Claims
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1. A blood cell detector comprising:
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an orifice section having a single orifice;
a first supplying section connected to the orifice section for supplying a first blood specimen into the orifice section;
a second supplying section connected to the orifice section for supplying a second blood specimen into the orifice section; and
first and second electrodes provided on opposite sides of the orifice for detecting a change in impedance of each of the first and second blood specimens when the first and second blood specimens are selectively caused to pass through the orifice wherein the first and second supplying sections cause the first and second blood specimens to pass through the orifice in opposite directions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A blood analyzing method using a blood cell detector, comprising steps of:
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(a) causing a first specimen for analysis of white blood cells to pass through an orifice in a first direction, (b) detecting a change in impedance of the first specimen through first and second electrodes provided on opposite sides of the orifice, (c) determining the number of white blood cells based on the change in impedance, (d) causing a second specimen for analysis of red blood cells to pass through the orifice in a second direction that is an opposite direction to the first direction, (e) detecting a change in impedance of the second specimen through the first and second electrodes, and (f) determining the number of red blood cells based on the change in impedance. - View Dependent Claims (18, 19, 20, 21)
(g) supplying a diluent into a container pervious to light;
(h) irradiating the container with light;
(i) detecting a first intensity of light transmitted through the container;
(j) discharging the diluent from the container;
(k) supplying a third specimen for analysis of hemoglobin into the container, (l) irradiating the container with light, (m) detecting a second intensity of light transmitted through the container; and
(n) determining the amount of hemoglobin based on the first and second intensities.
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20. The blood analyzing method of claim 19, wherein each of (a), (b), (c), (d), (e), (f), (g), (h), (i), (j), (k), (l), (m) and (n) is performed successively.
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21. The blood analyzing method of claim 19, wherein the first specimen and the third specimen are the same specimen.
Specification