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Device and method for treating magnetic particles

  • US 20050013741A1
  • Filed: 11/07/2002
  • Published: 01/20/2005
  • Est. Priority Date: 11/19/2001
  • Status: Active Grant
First Claim
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1. A device for treating magnetizable or magnetically attractable particles which are present in a liquid, comprising:

  • a holder for holding at least one reaction vessel with the liquid containing the particles;

    at least two movably arranged permanent magnets;

    a drive unit for moving the permanent magnets;

    said permanent magnets being arranged in pairs and opposite to each other, and being movable in a vertical direction relative to the level of the liquid held in said holder;

    the distance between the two permanent magnets of a pair being dimensioned or adjustable such that a reaction vessel of said at least one reaction vessel can be positioned therebetween;

    the movement of the permanent magnets taking place so that each permanent magnet of said paired arrangement being alternately brought from a first position or start position, in which said permanent magnet is at a distance from one vessel of said at least one reaction vessel and said permanent magnet having essentially no influence on said particles, to a second or other position (work position), in which said permanent magnet is located laterally next to said one reaction vessel eenieefed and exerts a magnetic force on the particles, and with said two permanent magnets of said paired arrangement alternating with each other in taking over the above-mentioned first position or the above-mentioned second position, relative to the reaction vessel positioned between the magnets, and alternating between the said positions at a predetermined velocity and/or for a predetermined duration.

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