Liquid transfer device

Details Liquid transfer device Liquid transfer device

1983-02-22

1985-03-19

Yasko, John D.

Surgery

Container for blood or body treating material, or means used...

Having hollow needle or spike for piercing container or...

A61M 100

Patent

active

045057095

ABSTRACT:
The device is used to transfer liquids such as pharmaceuticals from a container having a stopper of rubber or other material which can be punctured with a needle to a syringe. The device has a plug which is pressed down on the stopper and on the bottom on the plug are two needles. The first needle is long enough to extend near the bottom of the container and has a connection through the plug to a fitting to which the syringe is connected. By raising the plunger in the syringe, liquid is drawn from the container. The second needle is preferably shorter than the first and communicates with the atmosphere through a second connection in the plug. Thus air is admitted into the container to replace the liquid withdrawn into the syringe. A micro-pore filter in the second connection may be used to prevent contamination of the container.

REFERENCES:
patent: 2415871 (1947-02-01), De Woody
patent: 3882909 (1975-05-01), Ogle
patent: 4262671 (1981-04-01), Kersten

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