Concentration device using magnetic particles and method...

Details Concentration device using magnetic particles and method... Concentration device using magnetic particles and method...

2006-02-14

2006-02-14

Reifsnyder, David A. (Department: 1723)

Liquid purification or separation

Processes

Using magnetic force

C210S222000, C422S105000, C422S105000, C436S177000, C436S526000

Reexamination Certificate

active

06998055

ABSTRACT:
The invention relates to a concentration device using magnetic particles and a method therefor aimed at performing concentration of a large volume of liquid efficiently and reliably with a simple structure and on a small device scale. The construction involves having: a liquid suction passage in which liquid can pass through only in a suction direction; a liquid discharge passage in which liquid can pass through only in a discharge direction; a magnetic force device which can exert a magnetic field from outside of the liquid passage on at least one liquid passage thereof or remove the magnetic field, and which can separate magnetic particles having directly or indirectly captured a target substance suspended in the liquid by having the magnetic particles adhere to the inner wall of the liquid passage; a storage section communicated with each liquid passage, for storing the sucked liquid; and a pressure adjustment device for sucking and discharging the liquid by adjusting the pressure in the storage section.

REFERENCES:
patent: 4141687 (1979-02-01), Forrest et al.
patent: 5147529 (1992-09-01), Lee et al.
patent: 5895631 (1999-04-01), Tajima
patent: 6027945 (2000-02-01), Smith et al.
patent: 60-189834 (1985-12-01), None
patent: 10-332687 (1998-12-01), None
patent: WO 96/29602 (1996-09-01), None
patent: WO 9831840 (1998-07-01), None
Translation of JP 10-332687 A which is published on Dec. 1998.

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