Centrifuge arrangement
AssigneeFresenius AG
InventorsHans-Jurgen Neumann, Wolfram Weber
Life of this patent
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Abstract
The invention relates to a centrifuge arrangement having a centrifuge rotor comprising a drive disc (18) connected to a drive source. Furthermore, the centrifuge rotor comprises at least one separation container (1, 32) which comprises a separation passage (6) and a separation chamber (9) whose outlet and inlet passages lead to the center of the drive disc (18). Advantageously, the separation container (1, 32) is made as self-supporting part of rigid or semi-rigid but flexible material and this makes it possible to insert said container easily into the drive disc (18) and in addition provides advantages in the production of the centrifuge arrangement according to the invention.
Claims16
Centrifuge arrangement comprising a centrifuge rotor which has the following components:
- a drive disc, a substantially perpendicular annular wall defining an inwardly disposed face formed on the periphery of said drive disc,
- a separation container disposed on the drive disc, said separation container defining outer surfaces, at least parts of the separation container outer surfaces bearing against said inwardly disposed face of said annular wall, a groove formed in the surface of the drive disc adjacent said annular wall, said separation container defining a bottom surface seated in said groove, said separation container comprising a separation passage, an inlet passage and a plurality of outlet passages for fluids,
- the separation container being formed as a self-supporting part of flexible material, and including an upper wall for said separation container, said upper wall forming a fluid-tight cover for the separation passage.
Centrifuge arrangement comprising a centrifuge rotor which has the following components:
- a drive disc, a base plate defined by said drive disc, an upstanding annular wall defining an inner surface formed on the periphery of said base plate,
- a separation container comprising a separation passage formed by inner, outer, upper and lower boundary walls, an inlet passage and a plurality of outlet passages for fluids,
- the separation container being formed of rigid or semi-rigid material providing a self-supporting part substantially free of diameter and height fluctuations during operation, said separation container being sufficiently flexible to permit placement of the outer boundary wall thereof in bearing engagement with said inner surface of said annular wall upon location of the separation chamber in said drive disc, and wherein the inner boundary wall is substantially free of support during operation.
Dependencies are inferred from the claim text.