Blood filtering metering device

Details Blood filtering metering device Blood filtering metering device

1989-03-16

1991-01-22

Warden, Robert J.

Chemistry: analytical and immunological testing

Optical result

With reagent in absorbent or bibulous substrate

436170, 422 56, 422 57, 422 58, 422 61, G01N 2100, G01N 2177, G01N 3122

Patent

active

049870858

ABSTRACT:
Constructions are provided for removing interfering red blood cells from a blood sample and providing a measured amount of serum or plasma to a pad. The pad serves as a bridge for the transfer of reagent between two bibulous strips, resulting in transfer of reagent solution through the pad and transport of a material to be measured to the measuring region of the strips. Particularly, glass fiber membranes are used in conjunction with cellulosic membranes to minimize red blood cell lysis, remove red blood cells and provide a measured amount of sample.

REFERENCES:
patent: 3511608 (1970-05-01), Anderson
patent: 4477575 (1984-10-01), Vogel et al.
patent: 4604264 (1986-08-01), Rothe et al.
patent: 4738823 (1988-04-01), Engelmann
patent: 4774192 (1988-09-01), Terminiello
patent: 4839297 (1989-06-01), Freitag et al.
patent: 4876067 (1989-10-01), Deneke et al.

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