Plunger-less syringe for controlling blood flow

Details Plunger-less syringe for controlling blood flow Plunger-less syringe for controlling blood flow

2006-08-15

2006-08-15

Hindenburg, Max (Department: 3736)

Surgery

Diagnostic testing

Liquid collection

Reexamination Certificate

active

07090646

ABSTRACT:
A plunger-less syringe and method of use are disclosed. The syringe includes an outer housing fixedly attached to an interior receptacle for receiving a quantity of blood. The syringe has a vent that allows air to escape from the receptacle as blood flows therein. The vent can include a filter for use in preventing blood from exiting the interior receptacle. A vent cap is provided having a recess for mating with a syringe having a plunger, wherein blood flow into the receptacle can be controlled. A plurality of the plunger-less syringes can be packaged in a container, wherein the blood pathway of the syringes is sterilized and without having any exterior sterile packaging.

REFERENCES:
patent: 4133304 (1979-01-01), Bailey
patent: 4393882 (1983-07-01), White
patent: 4542749 (1985-09-01), Caselgrandi et al.
patent: 4753345 (1988-06-01), Goodsir et al.
patent: 5032117 (1991-07-01), Motta

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