Integrated cartridge for sample manipulation

• US 20030224371A1
• Filed: 06/04/2002
• Published: 12/04/2003
• Est. Priority Date: 06/04/2002
• Status: Abandoned Application

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Clemens, Charles E., Thomas, Bradley S., Clark, Raymond D., Slate, John B., Meyst, Richard P., Elms, Robert J., Gorton, Lanny, Harper, Alan E.
• Application Number:
  US10/160,191
• Publication Number:
  US 20030224371A1
• Time in Patent Office: Days
• US Class Current: 435/6
• CPC Class Codes: B01L 2200/0605 Metering of fluids
• CPC Class Codes: B01L 2200/10 Integrating sample preparation and analysis in single entity, e.g. lab-on-a-chip concept
• CPC Class Codes: B01L 2300/0654 Lenses; Optical fibres
• CPC Class Codes: B01L 2300/0681 Filter
• CPC Class Codes: B01L 2300/069 Absorbents; Gels to retain a fluid
• CPC Class Codes: B01L 2300/0816 Cards, e.g. flat sample carriers usually with flow in two horizontal directions
• CPC Class Codes: B01L 2300/087 Multiple sequential chambers
• CPC Class Codes: B01L 2300/1827 using resistive heater
• CPC Class Codes: B01L 2400/0406 capillary forces
• CPC Class Codes: B01L 2400/0487 fluid pressure, pneumatics
• CPC Class Codes: B01L 2400/0688 surface tension valves, capillary stop, capillary break
• CPC Class Codes: B01L 3/5027 by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip B01L3/5023 takes precedence; micromixers B01F33/30; microreactors for synthesis B01J19/0093; microcapillary devices in general B81B1/00
• CPC Class Codes: C12Q 1/6844 Nucleic acid amplification reactions

Abstract

An integrated cartridge for automated sample manipulation and, particularly strand displacement amplification, is provided. The cartridge comprises a sealed, two-part device with internal fluid channels and chambers, as well as reagents. The cartridge performs the sequence of fluid transfers, reagent additions and heat transitions, such as those of the strand displacement amplification process, in a single, sealed device.

Claims

1. A device for automated sample manipulation, comprising:

a liquid inlet well for providing a test sample;

a liquid input chamber for receiving said test sample from said liquid inlet well;

a first reaction chamber for performing a first reaction on said test sample;

a second reaction chamber for performing a second reaction on said test sample;

a first heating surface for heating said first and second reaction chambers; and

a denature chamber for denaturing said test sample.

2. The device of claim 1, wherein the sample manipulation is DNA amplification.

3. The device of claim 2, wherein the DNA amplification is strand displacement amplification.

4. A device for automated DNA amplification, comprising:

a liquid inlet well for providing a test sample containing DNA;

a liquid input chamber for receiving said test sample from said liquid inlet well;

a first reaction chamber for performing a prime reaction on the DNA in said test sample;

a second reaction chamber for performing an amplification reaction on the DNA in said test sample;

a first heating surface for heating said first and second reaction chambers; and

a denature chamber for denaturing the DNA in said test sample.

5. The device of claim 4, further comprising:

a first sensing chamber between the liquid input chamber and the first reaction chamber, wherein said sensing chamber is used for locating the test sample.

6. The device of claim 5, wherein the denature chamber is also used as a second sensing chamber.

7. The device of claim 4, wherein said first reaction chamber and said second reaction chamber contain reagents.

8. The device of claim 7, wherein said reagents are dried in said chambers during manufacture of said device.

9. The device of claim 4, further comprising a fluid transfer mechanism for transferring the sample from the sample input chamber to the first reaction chamber.

10. The device of claim 9, wherein said fluid transfer mechanism comprises at least one capillary channel.

11. The device of claim 4, further comprising a fluid transfer mechanism for transferring the sample from the first reaction chamber to the second reaction chamber.

12. The device of claim 4, wherein the DNA amplification is strand displacement amplification.

13. The device of claim 4, wherein said device is disposable.

14. A device for automated sample manipulation, comprising a sealed cartridge having a cartridge top and a cartridge bottom, wherein said cartridge top comprises:

a liquid inlet well;

fluidic cavities;

first, second and third connection ports;

first and second heat block surfaces; and

a take-out well.

15. The device of claim 14, wherein the sample manipulation is DNA amplification.

16. The device of claim 15, wherein the DNA amplification is strand displacement amplification.

17. A device for automated sample manipulation, comprising a sealed cartridge having internal fluidic cavities, wherein said internal fluidic cavities comprise, in fluid sequence:

a liquid input chamber;

a sensing chamber;

a first reaction chamber;

a second reaction chamber;

a filter means;

a denature chamber; and

a take-out well.

18. The device of claim 17, wherein said internal fluidic cavities are connected by capillary channels.

19. The device of claim 18, wherein the sample manipulation is DNA amplification.

20. The device of claim 19, wherein the DNA amplification is strand displacement amplification.

21. A method of sample manipulation, comprising:

(a) placing a liquid sample into a liquid inlet well of a sealed cartridge;

(b) allowing the liquid sample to flow from the liquid inlet well to a liquid input chamber;

(c) moving the liquid sample from the liquid input chamber to a first reaction chamber;

(d) performing a first reaction on the liquid sample in the first reaction chamber;

(e) moving the liquid sample from the first reaction chamber to a second reaction chamber;

(f) performing a second reaction on the liquid sample in the second reaction chamber;

(g) moving the liquid sample from the second reaction chamber to a denature chamber; and

(h) denaturing the liquid sample.

22. The method of claim 21, wherein the sample manipulation is DNA amplification.

23. The device of claim 22, wherein the DNA amplification is strand displacement amplification.

24. A method of automated DNA amplification, comprising:

(a) placing a liquid sample containing DNA into a liquid inlet well of a sealed cartridge;

(b) allowing the liquid sample to flow from the liquid inlet well to a liquid input chamber;

(c) moving the liquid sample from the liquid input chamber to a first reaction chamber;

(d) performing a first, prime reaction on the DNA in the liquid sample in the first reaction chamber;

(e) moving the liquid sample from the first reaction chamber to a second reaction chamber;

(f) performing a second, amplification reaction on the DNA in the liquid sample in the second reaction chamber;

(g) moving the liquid sample from the second reaction chamber to a denature chamber; and

(h) denaturing the DNA in the liquid sample.

25. The method of claim 24, further comprising:

moving the liquid sample from the denature chamber to a take-out well; and

removing the liquid sample from the take-out well.

26. The method of claim 24, further comprising:

moving the liquid sample from the liquid input chamber to a sensing chamber; and

obtaining the location of the liquid sample within the cartridge,

wherein the liquid sample is moved to the sensing chamber prior to being moved to the first reaction chamber.

27. A process of making a sealed cartridge for automated DNA amplification, comprising:

(a) providing a cartridge top, wherein said cartridge top comprises a liquid inlet well;

fluidic cavities including a first reaction chamber and a second reaction chamber;

first, second and third connection ports;

first and second heat block surfaces; and

a take-out well;

(b) drying reagents in the first and second reaction chambers;

(c) providing a cartridge bottom;

(d) placing an adhesive pattern onto the cartridge bottom; and

(e) bonding the cartridge top and the cartridge bottom together to form the sealed cartridge.