Blood collection needle

Details Blood collection needle Blood collection needle

2007-09-11

2007-09-11

Hindenburg, Max R (Department: 3736)

Surgery

Diagnostic testing

Liquid collection

Reexamination Certificate

active

11175167

ABSTRACT:
A blood collection needle which includes a needle for puncturing a patient's skin; a needle for puncturing a rubber plug which seals a blood collection tube; a hub for securing respective proximal portions of the two needles; a resilient cap fitted to the hub; and a valve member disposed in the internal passage of the hub which allows only blood flow from the needle used to puncture a patient's skin to the needle used to puncture the rubber plug which seals the blood collection tube. The valve member includes a bowl portion disposed so that the opening is faced toward the needle for puncturing the rubber plug and a guiding portion provided on a bottom surface of the bowl portion for causing the valve member to move to a predetermined position which closes the internal passage.

REFERENCES:
patent: 3557778 (1971-01-01), Hughes
patent: 4106497 (1978-08-01), Percarpio
patent: 4307731 (1981-12-01), Kaufman
patent: 4317456 (1982-03-01), Percarpio
patent: 4340068 (1982-07-01), Kaufman
patent: 5222502 (1993-06-01), Kurose
patent: 5303713 (1994-04-01), Kurose
patent: 5334159 (1994-08-01), Turkel
patent: 5527284 (1996-06-01), Ohnemus et al.
patent: 6050957 (2000-04-01), Desch
patent: 6991215 (2006-01-01), Kiehne
patent: 2005/0283093 (2005-12-01), Conway et al.
patent: 633790 (2000-05-01), None
patent: 53-97289 (1978-08-01), None
patent: 56-143144 (1981-11-01), None
patent: 57-11661 (1982-01-01), None

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