Syringe for drawing blood

Details Syringe for drawing blood Syringe for drawing blood

1998-01-13

1999-09-14

Hindenburg, Max

Surgery

Diagnostic testing

Liquid collection

A61B 500

Patent

active

059514914

ABSTRACT:
A syringe includes a needle secured to one end of a barrel by a coupler which has a check valve engaged in the barrel. A housing is secured to the barrel. The check valve may prevent the blood from flowing through the coupler when the housing is disengaged from the barrel. The coupler includes a tip. The check valve includes a sleeve engaged on the tip of the coupler and having a resilience for clamping the tip and for blocking the coupler. A piston is slidably engaged in the housing for vacuuming the housing and for drawing blood into the housing via the needle and the coupler.

REFERENCES:
patent: 4378812 (1983-04-01), Sarstedt
patent: 4418703 (1983-12-01), Hoch et al.
patent: 4459997 (1984-07-01), Sarstedt
patent: 4732162 (1988-03-01), Martell
patent: 5074312 (1991-12-01), Sarstedt
patent: 5095914 (1992-03-01), Sarstedt

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