초록 ▼

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 i

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 Thus air is admitted into the container to replace the liquid withdrawn into the syringe.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.

대표청구항 ▼

A device for use with a syringe for withdrawal of liquid from a container have a needle-pervious stopper comprising a body having a fitting on its top shaped for connection to a mating fitting on a syringe, said body being formed with a socket extending through said body, said body having a flat bot

A device for use with a syringe for withdrawal of liquid from a container have a needle-pervious stopper comprising a body having a fitting on its top shaped for connection to a mating fitting on a syringe, said body being formed with a socket extending through said body, said body having a flat bottom end, a pointed first needle depending from said bottom end for puncturing said stopper communicating with said socket and a second needle depending from said bottom end to permit entry of air through said body and said stopper to replace, with air, liquid drawn out through said first needle and socket, said first and second needles comprising the only projection from said bottom end, and an opening to atmosphere formed in said body communicating with said second needle.