Blood collection and testing device

Details Blood collection and testing device Blood collection and testing device

1993-06-29

1995-01-24

Hindenburg, Max

Surgery

Instruments

Cutting, puncturing or piercing

A61B 1732

Patent

active

053838858

ABSTRACT:
Described is a blood collection and testing device including a hollow housing surrounding a vertical axis and having horizontally disposed: an upper annular end; a larger, lower annular end equipped with gauze adapted to receive a blood sample; a circular membrane located above the lower annular end and centrally provided with a puncturably rupturable bubble containing a chemical reagent reactable with human blood; and a centrally-perforate wall located in-between the circular membrane and the housing upper annular end. Slidably disposed within the housing upper annular end is a pushbutton provided with a needle extending along the vertical axis and adapted to puncturably rupture the circular membrane bubble as the slidable pushbutton moves along the vertical axis. A resiliently yieldable helical spring surrounds the needle and bears between the centrally-perforate wall and the pushbutton.

REFERENCES:
patent: 3741197 (1973-06-01), Saz et al.
patent: 4388925 (1983-06-01), Burns
patent: 5014718 (1991-05-01), Mitchen
patent: 5201324 (1993-04-01), Swierczek

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