Capillary tube holder for test instruments especially blood test

Details Capillary tube holder for test instruments especially blood test Capillary tube holder for test instruments especially blood test

1986-05-06

1988-04-19

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

7386402, 7386472, 7386491, 128760, 422100, 422102, B01L 900, G01N 112

Patent

active

047388277

ABSTRACT:
The phial or vial holding for a capillary tube is internally subdivided into an external chamber having annular cross-section and an internal chamber having circular cross-section. The outer wall of the chamber of annular cross-section carries a capillary hole and the inner tubular wall separating the two chambers has a hole in alignment with that of the outer wall and of larger diameter. In the hollow space of annular cross-section, a slight entrained flow through the hole of the inner wall and consequently a fast removal of the sample liquid which has passed through the capillary hole takes place. This is without backward flow in the direction of the capillary hole.

REFERENCES:
patent: 2587221 (1952-02-01), Richardson et al.
patent: 3640267 (1972-02-01), Hurtig et al.
patent: 3837376 (1974-09-01), Brown et al.
patent: 4162896 (1979-07-01), Hosli

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