×

Magnetic separation device and methods for use in heterogeneous assays

  • US 4,988,618 A
  • Filed: 05/03/1989
  • Issued: 01/29/1991
  • Est. Priority Date: 11/16/1987
  • Status: Expired due to Term
First Claim
Patent Images

1. A magnetic separation apparatus for use in assays employing solid phases comprising magnetic particles, said apparatus comprising:

  • (a) base means having a plurality of orifices for receiving nonferrous containers adapted to contain said magnetic particles; and

    (b) a plurality of magnet means mounted on said base and spaced about the periphery of each receiving orifice wherein each of said magnet means possess a north-south magnetic field orientation in a direction which is coplanar with a cross-sectional plane through said receiving orifices and wherein each of said north-south magnetic fields of said magnet means are oriented in a common direction and wherein said magnet means are mounted in a fixed relation with respect to themselves and to said base whereby each nonferrous container, when placed in receiving relationship with each of said orifices, has four magnet means about its periphery.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×