Apparatus for diluting and mixing a liquid specimen

Details Apparatus for diluting and mixing a liquid specimen Apparatus for diluting and mixing a liquid specimen

1992-07-15

1993-10-19

Housel, James C.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

422 81, 422 99, 436 54, 436174, 436179, 436180, 7386384, 7386435, G01N 114

Patent

active

052543137

ABSTRACT:
An apparatus for diluting and mixing specimen such as blood and a reagent, which is designed to prepare a mixed solution of a specimen and a reagent at a specific ratio by discharging the reagent in a passage for quantitative determination in a sampling valve by a specified amount of the reagent. The apparatus is designed so that specimen is discharged by reagent first at a low speed and thereafter at a usual speed by a reagent discharge device. The reagent discharge device may comprise a syringe, a pump having a thin film for forming air and liquid chambers, or the like. As constructed, the apparatus is not damaged due to fluid pressure.

REFERENCES:
patent: 3306111 (1967-02-01), Ferrin
patent: 3991055 (1976-11-01), Godin et al.
patent: 4244919 (1981-01-01), Chen
patent: 4624928 (1986-11-01), Qureshi
patent: 4810659 (1989-03-01), Higo et al.
patent: 4873057 (1989-10-01), Robertson et al.
patent: 5094961 (1992-03-01), del Valle et al.
patent: 5108928 (1992-04-01), Menard et al.

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