Method for use in testing of liquid samples, a test unit...

Details Method for use in testing of liquid samples, a test unit... Method for use in testing of liquid samples, a test unit...

2002-01-31

2009-10-27

Warden, Jill (Department: 1797)

Chemistry: analytical and immunological testing

Including sample preparation

Volumetric liquid transfer

C137S003000, C422S050000, C251S142000

Reexamination Certificate

active

07608464

ABSTRACT:
Diagnostic analyses of medical specimens or analyses of samples taken from industrial processes, waste treatment or the environment are made based on hydraulic dosage of liquids, in which a dosage space (8) of limited volume included in the test unit is filled with the medium needed in the test by means of a liquid actuator, such as a bellows (18), the sample being combined with the medium by absorption into the dosage space with the aid of the actuator, purging a corresponding amount of medium from the space under the effect of suction. If necessary, one or more reactants required in the test are drawn into the dosage space (8) on the same principle. The quantitatively dosed liquids can then be mixed and transferred hydraulically into the incubation and/or detection spaces (25, 26) of the test unit with movements generated by the actuator (18). The system may include data transmission communications.

REFERENCES:
patent: 4588554 (1986-05-01), Kaartinen et al.
patent: 5311896 (1994-05-01), Kaartinen
patent: 5638986 (1997-06-01), Tuominen et al.
patent: 5863801 (1999-01-01), Southgate et al.
patent: 6055487 (2000-04-01), Margery et al.
patent: 0800073 (1997-10-01), None
patent: 1046823 (2000-03-01), None
patent: 2294761 (1996-05-01), None
patent: WO 88/00347 (1988-01-01), None

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