Automatic haematology device for the diagnosis of organic disorders, such as, for example, anaemia

摘要

1,192,192. Determining blood characteristics. TECHNICON CORP. 22 June, 1967 [11 July, 1966], No. 28851/67. Heading B1X. Apparatus for determining blood characteristics comprises supply means 12 for providing an initial stream of the samples to be tested; means 30, 32, 34, 36 coupled to junction 20 for providing a plurality of quotient streams, each containing a fractional portion of each of the samples in the initial stream; first treating means coupled to tube 34 for treating one quotient stream for HCT analysis, first determining means for measuring the HCT for example by continuous measurement of the resistance of the stream by means of electrodes 54 and for providing a signal responsive to the HCT measurement; second treating means for treating another of the quotient streams for analysis and second determining means for making the appropriate measurement and providing a signal responsive to it; and recording means 132 for receiving the signals and recording in correlation the signals obtained by measurements on the fractional portions of a common sample of the initial stream. The quotient stream in tube 30 may be twice diluted with saline (at junctions 58 and 76) then passed through phaser coil 80 (see 1,183,631) to counter module 84 for RBC determination. The quotient stream in tube 32 may be lysed with water added at 107, mixed with ferricyanide-cyanide reagent at 116 to convert the haemoglobin to cyanomethaemoglobin and passed through phaser coil 121 to colorimeter 130 for HGB measurement. The quotient stream in tube 36 may be lysed with acetic acid and a surfactant added at 96, and passed through phaser coil 104 to counter module 84 for WBC determination. MCH, MCV and MCHC are calculated from the measured characteristics and all seven characteristics of the sample are printed out on a single document (Fig. 3 not shown). The circuit (Fig. 2 not shown) permits display of the measured characteristics in turn on a meter.