Self-contained blood withdrawal apparatus and method

Details Self-contained blood withdrawal apparatus and method Self-contained blood withdrawal apparatus and method

1997-02-03

1998-12-01

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

604403, A61B 1734, A61B 1732

Patent

active

058431128

ABSTRACT:
A self-contained blood withdrawal apparatus (20) which includes a movable appendage piercing mechanism (27), a suction mechanism (30) and a specimen storage container (29). A base portion (21) is formed with a cavity opening (24) over which the appendage (10) is placed and a first passageway (25) extending from the opening to the storage container. The appendage piercing mechanism (27) is aligned with the cavity opening (24) and is movable between a retracted position and an extended appendage piercing position. Additionally, the suction mechanism (30), for facilitating withdrawal of the blood from the appendage, is coupled to the base portion (21) and communicates with the cavity opening through a second passageway (31). Accordingly, present invention provides a unitary apparatus which pierces an appendage, facilitates blood withdrawal and stores the specimen in a container.

REFERENCES:
patent: 3886930 (1975-06-01), Ryan
patent: 4616649 (1986-10-01), Burns
patent: 5026388 (1991-06-01), Ingalz
patent: 5156611 (1992-10-01), Haynes et al.
patent: 5246434 (1993-09-01), Ebara
patent: 5540674 (1996-07-01), Karas
patent: 5624458 (1997-04-01), Lipsher

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