Pharmaceutical mixing container with rotatable vaned internal ma

Details Pharmaceutical mixing container with rotatable vaned internal ma Pharmaceutical mixing container with rotatable vaned internal ma

1992-09-23

1993-08-31

Hornsby, Harvey C.

Agitating

Operator supported

Mixing chamber type

206219, 206221, 215DIG8, 366247, 366273, 366347, 604416, 604903, B01F 1308

Patent

active

052403220

ABSTRACT:
A pharmaceutical mixing container for storing a liquid having at least two factions which tend to separate during storage. A housing has an inner volume and is closed at one end by a septum arrangement and at another end by a slidable sealing member. A vaned mixing member having a magnetic element is loosely rotatably mounted within the housing in a first recess formed in the inner volume facing portion of the sealing member and contacts the liquid faction of the pharmaceutical contained within the housing. An external magnet produces a magnetic field which extends within the inner volume and interacts with the mixing element. By rotating the magnet about the axis of the housing, the mixing member is rotated by the magnetic coupling causing turbulent waves within the liquid which provide thorough admixing for the pharmaceutical constituents. The external magnet is carried by a drive stem which engages with the sealing member and can be used to expel the mixed pharmaceutical after the septum is pierced. By controlling the speed of rotation of the magnet, thorough admixing is provided without causing mechanical damage to delicate constituents, such as crystalline factions found in NPH type insulin.

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patent: 4850986 (1989-07-01), Grau et al.
patent: 5137528 (1992-08-01), Crose

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