Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1988-11-18
1991-09-24
Jones, W. Gary
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
73 641, 436 69, G01N 3386
Patent
active
050512390
ABSTRACT:
A flow device for use in a hemorrhaging time measuring apparatus comprises a housing through which the blood to be tested flows under a suction effect. In its interior the housing has a separating wall which is arranged transversely with respect to the direction of flow of the blood through the housing and which has at least one aperture therein. Disposed upstream of the aperture is a suction tube for sucking the blood through the housing. The suction tube extends into a cavity within the housing which is upstream of the aperture in the separating wall, with the downstream end of the tube disposed in the vicinity of the aperture. The blood is sucked into the device under a constant suction effect and thrombus formation takes place in the region of the aperture.
REFERENCES:
patent: 3900290 (1975-08-01), Hornstra
patent: 4604894 (1986-08-01), Kratzer et al.
patent: 4780418 (1988-10-01), Kratzer
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