Flashback device for venous specimen collection

Details Flashback device for venous specimen collection Flashback device for venous specimen collection

2005-06-14

2005-06-14

Kennedy, Sharon (Department: 3762)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

C604S192000, C600S576000

Reexamination Certificate

active

06905483

ABSTRACT:
A blood collection device includes a needle hub with a flashback chamber and a vent plug covering the flashback chamber. The vent plug permits a flow of air across the vent plug but prevents a flow of liquid across the vent plug. An intravenous cannula is mounted to the hub and extends into the flashback chamber. A non-patient cannula is mounted to the hub and also extends into communication with the flashback chamber. A passive shielding device is mounted to the hub and can be moved from a proximal position where the intravenous cannula is exposed to a distal position where the intravenous cannula is partly shielded. The flashback chamber can be observed to provide an early indication of venous access. A fluid collection tube then can be placed in communication with the non-patient needle and can simultaneously trigger movement of the safety shield.

REFERENCES:
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patent: 5066284 (1991-11-01), Mersch et al.
patent: 5792122 (1998-08-01), Brimhall et al.
patent: 6063040 (2000-05-01), Owen et al.
patent: 6273874 (2001-08-01), Parris
patent: 6398743 (2002-06-01), Halseth et al.
patent: 6786875 (2004-09-01), Barker et al.
patent: 2002/0107483 (2002-08-01), Cook

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