| 摘要 |
The separation of particles in or from liquids is a necessary method in many procedures in biotechnology, biological research, diagnostic, and treatment of diseases. Commonly, methods are used which are based on differences in density (sedimentation) or size (filtration) of the particles. The invention discloses a device which can be used to concentrate particles within a cylinder by means of a free movable positioning of at least one separating membrane and one plunger within the cylinder. The device is suitable for the time unlimited use in a closed circuit. The invention further discloses a method for the preferable continuous separation of particles. The invention describes a device for separation of particles from liquids, comprising a cylinder (1) in which is movable situated at least one filter-disc (2), which is solidly mounted to a filter piston (3), and a plunger-disc (4), so that by moving the filter piston (3) the filter-disc (2) and the plunger-disc (4) can be moved together, and the filter-disc (2) separately through the cylinder. The cylinder (1) is closed at the end facing the filter-disc and comprises at least one inlet valve (5) and one outlet valve (5), and further gaskets which seal filter-disc and plunger-disc. |
