The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 07, 2009

Filed:

Apr. 10, 2003
Applicants:

Eugene K. Achter, Lexington, MA (US);

Hartmut Richard Schroeder, Franklin, MA (US);

Stephen S. Trotta, Woburn, MA (US);

Inventors:

Eugene K. Achter, Lexington, MA (US);

Hartmut Richard Schroeder, Franklin, MA (US);

Stephen S. Trotta, Woburn, MA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/553 (2006.01); G01N 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An analytical instrument for the immobilization of antigens to be detected in an immunoassay using mangetizable beads. The instrument includes a probe containing magnetizable particles and a plurality of magnetic devices for applying a magnetic field gradient to the particles in the probe reservoir. The probe is movable between the plurality of magnetic devices and at least one of the probe positions may be used to immobilize the magnetic particles in the fluid medium and at least another position may be used to resuspend the particles in a fluid medium.


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