IP Library Granted Patent US 8,481,901
Granted Patent B2
US 8,481,901 · App. 13/214,808 · Granted Jul 9, 2013

Enhanced sample processing devices, systems and methods

Inventors: William Bedingham (Woodbury, MN); Raj Rajagopal (Woodbury, MN); Barry W. Robole (Woodville, WI)
Assignee: 3M Innovative Properties Company
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Quick Facts
Patent No.
US 8,481,901
App. No.
13/214,808
Granted
Jul 9, 2013
Kind
B2
Abstract

Methods for processing sample materials. Methods of the present disclosure can include providing a device including a process chamber array, the process chamber array including a loading chamber and a process chamber; providing sample material in the process chamber array; moving the sample material within the process chamber array by rotating the device; providing paramagnetic particles within the sample material located in the process chamber array; providing a magnet proximate the device; and rotating the device such that the paramagnetic particles within the sample material are subjected to the magnetic field of the magnet during rotation of the device.

Claims (39)

1. A method of processing sample material comprising:

providing a device comprising a process chamber array, wherein the process chamber array comprises a loading chamber and a process chamber;

providing sample material in the process chamber array;

moving the sample material within the process chamber array by rotating the device;

providing paramagnetic particles within the sample material located in the process chamber array;

locating a magnet proximate the device, the magnet generating a magnetic field; and

rotating the device such that the paramagnetic particles within the sample material in the process chamber array are intermittently subjected to the magnetic field of the magnet during the rotating and moved within the sample material in the process chamber array as the paramagnetic particles are moved through the magnetic field of the magnet,

wherein the magnet does not rotate with the device when the device is rotating.

2. The method of claim 1 , wherein the device comprises a plurality of the process chamber arrays.

3. The method of claim 1 , wherein the rotating comprises rotating the device at varying speeds that comprise at least two cycles of acceleration and deceleration.

4. The method of claim 1 , wherein the paramagnetic particles move within the process chamber array while the device is rotating.

5. The method of claim 1 , wherein the rotating comprises rotating the device through at least two cycles of acceleration and deceleration, and wherein the paramagnetic particles move within the process chamber array while the device is rotating.

6. The method of claim 1 , wherein the paramagnetic particles within the sample material in the process chamber array are subjected to forces pulling opposite directions intermittently.

7. The method of claim 1 , wherein rotating the device comprises rotating the device about an axis of rotation, wherein the magnet is located between the paramagnetic particles and the axis of rotation.

8. The method of claim 7 , wherein the axis of rotation passes through the device.

9. The method of claim 1 , wherein the magnet is fixed when the device is rotating.

10. The method of claim 1 , wherein the sample material in the process chamber array comprises residual reaction materials, and wherein the method further comprises using the paramagnetic particles to remove the residual reaction materials from the sample material in the process chamber array.

11. The method of claim 1 , wherein the rotating facilitates mixing of the paramagnetic particles within the sample material.

12. The method of claim 1 , wherein the rotating comprises rotating the device such that the paramagnetic particles within the sample material in the process chamber array are intermittently subjected to a strongest portion of the magnetic field of the magnet as the device is rotated.

13. The method of claim 1 , wherein the rotating comprises rotating the device relative to the magnet.

14. A method of processing sample material comprising:

providing a device comprising a process chamber array that comprises a loading chamber and a process chamber;

providing sample material in the process chamber array;

providing paramagnetic particles within the sample material located in the process chamber array;

locating a magnet proximate the device, the magnet generating a magnetic field; and

mixing the paramagnetic particles within the sample material by rotating the device such that the paramagnetic particles are intermittently subjected to the magnetic field and intermittently subjected to the magnetic field and moved within the sample material in the process chamber array as the paramagnetic particles are moved through the magnetic field of the magnet,

wherein the magnet does not rotate with the device when the device is rotating.

15. The method of claim 14 , wherein mixing the paramagnetic particles within the sample material inhibits the paramagnetic particles from becoming packed into a portion of the process chamber array.

16. The method of claim 14 , wherein locating a magnet proximate the device includes locating the magnet on the opposite side of the device from the direction in which gravity pulls the paramagnetic particles.

17. The method of claim 14 , wherein locating a magnet proximate the device includes locating two or more magnets on opposite sides of the device to provide opposing forces on the paramagnetic particles.

18. The method of claim 14 , wherein mixing the paramagnetic particles within the sample material by rotating the device includes varying the rotational speed of the device.

19. The method of claim 14 , wherein the magnet is fixed when the device is rotating.

20. A method of processing sample material comprising:

providing a device comprising a process chamber array, wherein the process chamber array comprises a loading chamber and a process chamber;

providing sample material in the process chamber array;

moving the sample material within the process chamber array by rotating the device;

providing paramagnetic particles within the sample material located in the process chamber array;

rotating the device; and

locating a magnet proximate the device for generating a magnetic field, wherein the magnet does not rotate with the device when the device is rotating, such that the paramagnetic particles within the sample material in the process chamber array are intermittently subjected to the magnetic field and moved into and out of a strongest portion of the magnetic field of the magnet as the device is rotated.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2017
From: 3M INNOVATIVE PROPERTIES COMPANY
To: FOCUS DIAGNOSTICS, INC.
Reel/Frame 041628/0449 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2017
From: FOCUS DIAGNOSTICS, INC.
To: DIASORIN S.P.A.
Reel/Frame 041628/0470 →
Continuity (11)
Continuation 12205170 · Sep 5, 2008
Continuation 11622643 · Jan 12, 2007
Continuation 11287074 · Nov 23, 2005
Continuation 10840766 · May 6, 2004
Division 09894810 · Jun 28, 2001
Provisional Application 60214508 · Jun 28, 2000
Provisional Application 60214642 · Jun 28, 2000
Provisional Application 60237151 · Oct 2, 2000
Provisional Application 60260063 · Jan 6, 2001
Provisional Application 60284637 · Apr 18, 2001
Related Publication 20110303657A1 · Dec 15, 2011