Valve for sampling a liquid specimen

Details Valve for sampling a liquid specimen Valve for sampling a liquid specimen

1992-10-30

1995-02-21

Williams, Hezron E.

Measuring and testing

Sampler, sample handling, etc.

Conduit or passageway section capture chamber

G01N 110

Patent

active

053905520

ABSTRACT:
A sampling valve comprises two fixed elements, and a movable element held between these fixed elements, in which a flow-in passage (Q) is provided at one fixed element so as to communicate with at least one of the metering passages (P1) , . . . . Plural flow-out passages (R1), (R2), . . . are provided at the other or one fixed element so as to communicate with different metering passages individually. Relay passages (S1), . . . are also provided at the one or other fixed element so as to mutually connect the metering passages (P1), (P2), . . . in specified combinations. In such a construction, plural sampling routes are formed in the sampling valve. In the sampling valve for aspirating and pushing liquid specimens such as blood in cylindrical shape and removing it quantitatively, only the portion necessary for measurement may be selected and sampled.

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