Device for pipetting solution from one plate format to a different plate platform using movable position pipette tips

• US 20070092410A1
• Filed: 10/26/2005
• Published: 04/26/2007
• Est. Priority Date: 10/26/2005
• Status: Abandoned Application

• Current Assignee: Agilent Technologies, Inc.
• Original Assignee: Agilent Technologies, Inc.
• Inventors: Barber, William, Broske, Alan, Ricker, Robert, Hoffman, Bernd-Walter
• Application Number:
  US11/259,857
• Publication Number:
  US 20070092410A1
• Time in Patent Office: Days
• US Class Current: 422/400
• CPC Class Codes: B01L 2200/022 Variable spacings
• CPC Class Codes: B01L 3/0217 of the plunger pump type medical syringes A61M
• CPC Class Codes: B01L 9/54 Supports specially adapted for pipettes and burettes automated pipetting stations G01N35/10
• CPC Class Codes: G01N 35/1067 for transfer to or from containers having different spacing

Abstract

A pipetting device includes first and second bodies, through which a plurality of pipettes extend. The surface of one of the bodies is free to move relative to the surface of the other body. Relative motion between the two bodies causes an inter-pipette distance exhibited by the pipetting device to vary.

Claims

1. A pipettor including a plurality of pipettes, the pipettor comprising:

a first body defining one or more guides through which the plurality of pipettes extend, the first body having a surface; and

a second body defining one or more guides through which the plurality of pipettes extend, the second body having a surface free to move relative to the surface of the first body, so that relative motion between the surfaces of the first and second bodies causes an inter-pipette distance exhibited by the plurality of pipettes to vary.

2. The pipettor of claim 1, wherein the second body is slideably coupled to a member that is fixedly attached to the first body, so that the relative motion causing the variance in inter-pipette distance is caused by sliding of the second body along said member.

3. The pipettor of claim 1, wherein the first body defines one guide that is elongated and substantially linear, the plurality of pipettes extending through the elongated and substantially linear guide.

4. The pipettor of claim 1, wherein the second body defines a quantity of guides equal in number to a quantity of pipettes included in the pipettor.

5. The pipettor of claim 4, wherein the guides defined by the second body extend in a fanned-out or fanned-in arrangement.

6. The pipettor of claim 4, wherein the second body is substantially planar.

7. The pipettor of claim 4, wherein the second body is at least partially substantially arcuate.

8. The pipettor of claim 1, additionally comprising a plurality of rods extending between the first and second bodies, the plurality of rods being rotatably attached to the first body.

9. The pipettor of claim 8, wherein the second body defines a plurality of threaded channels, wherein each of the rods are threaded and extend through one of the channels defined by the second body, and wherein the motion of the second body along a longitudinal axis of the rods causes the rods to rotate.

10. The pipettor of claim 9, wherein each of the rods is coupled to a pipette, so that rotation of a given rod causes rotation of the pipette coupled thereto.

11. A method of adjusting inter-pipette spacing of a pipetting device, the method comprising:

extending pipettes through at least two bodies, each of which defines at least one guide for passage of the pipettes, the guides being arranged so that the pipettes may travel in at least one dimension, given relative motion between surfaces of the two bodies; and

allowing relative motion between the surfaces of the two bodies, the relative motion operating to exert force upon the pipettes, causing the pipettes to travel in the at least one dimension, thereby altering the inter-pipette spacing of the pipette device.

12. The method of claim 11, wherein the relative motion between the surfaces of the two bodies comprises translation of one body, relative to another.

13. The method of claim 11, wherein the relative motion between the surfaces of the two bodies comprises rotation of a first of the two bodies, so that the surface of the first body exhibits a velocity relative to a second of the two bodies.

14. The method of claim 11, wherein the force exerted upon the pipettes substantially corresponds to an equal and opposite force exerted upon a first of the two bodies.

15. The method of claim 11, wherein relative motion between the two bodies causes a rotational force that moves the pipettes about an arcuate path.

16. The method of claim 11, wherein each of the pipettes are configured to generate a suctional force under the control of a corresponding plunger having a plunger cap located at a proximal end of the plunger, the method further comprising coupling each of the plunger caps to one another with an elongated member.

17. The method of claim 11, wherein the relative motion operates to exert force upon the pipettes, causing the pipettes to travel in two dimensions.

18. The method of claim 17, wherein the pipettes achieve at least two different substantially linear arrangements.

19. A pipetting device comprising:

a plurality of pipettes movably coupled to one another; and

a guide system configured to adjust an inter-pipette distance exhibited by the plurality of pipettes.

20. The pipette device of claim 19, wherein the guide system comprises at least two bodies configured to move relative to one another.