Device for dissolving and delivering a drug in a transfusion liq

Details Device for dissolving and delivering a drug in a transfusion liq Device for dissolving and delivering a drug in a transfusion liq

1995-06-26

1997-07-22

Buiz, Michael Powell

Surgery

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

Treating material introduced into or removed from body...

604 82, 604262, 604403, 604408, 604414, A61M 3700

Patent

active

056499078

ABSTRACT:
A device for dissolving and delivering a drug in a transfusion liquid includes a transfusion liquid container, a drip chamber, a transfusion tube communicating with the drip chamber, and a cylindrical body having first and second end portions. The cylindrical body is communicable with the container at the first end portion, and with the drip chamber at the second end portion. A first hollow needle communicates with, and projects outwardly from, the cylindrical body. The first needle establishies communication between the container and a drug container containing a drug to be introduced into the transfusion liquid, through the cylindrical body, by piercing into the drug container. A drug container is accommodated in an accommodating member provided on the cylindrical body. A movable valve body is provided inside the cylindrical body at an initial position at which its side portion does not clog the first needle. The valve defines a space through which the transfusion liquid is introduced into the drug container to dissolve the drug when the cylindrical body communicates with the transfusion liquid container and the drug container is accommodated into the accommodating body and pierced by the first hollow needle. A second hollow needle communicates with the drip chamber and can advance into the cylindrical body. The second needle establishes communication between the drip chamber and the container by piercing the valve after the dissolved drug is introduced into the container.

REFERENCES:
patent: 4804366 (1989-02-01), Zdeb et al.
patent: 4936829 (1990-06-01), Zdeb et al.
patent: 5024657 (1991-06-01), Needham et al.

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