Portable detection system and method

• US 8,138,909 B2
• Filed: 07/02/2008
• Issued: 03/20/2012
• Est. Priority Date: 07/03/2007
• Status: Active Grant

• Current Assignee: Smiths Detection (Smiths Group International Holdings Ltd.)
• Original Assignee: Smiths Detection-Watford Ltd., Smiths Detection (Smiths Group International Holdings Ltd.)
• Inventors: Lewington, Jay, Czajka, John Walter, Green, Douglas Jason, Volpe, Carmelo
• Primary Examiner(s): Previl, Daniel
• Application Number:
  US12/216,312
• Publication Number:
  US 20090066507A1
• Time in Patent Office: 1,357 Days
• Field of Search: 340/514, 340/538.15, 340/539.17, 340/539.1, 340/539.13, 340/579, 340/539.26, 340/552, 340585-586, 340/588, 340601-602, 340/617, 340/629
• US Class Current: 340/514
• CPC Class Codes: B01L 2200/14 Process control and prevention of errors
• CPC Class Codes: B01L 2200/147 Employing temperature sensors
• CPC Class Codes: B01L 2200/185 Long distance transport, e.g. mailing
• CPC Class Codes: B01L 2300/023 Sending and receiving of information, e.g. using bluetooth
• CPC Class Codes: B01L 2300/024 Storing results with means integrated into the container
• CPC Class Codes: B01L 7/52 with provision for submitting samples to a predetermined sequence of different temperatures, e.g. for treating nucleic acid samples amplification or hybridisation processes per se C12Q1/68; controlling sequential reactions for synthesis B01J19/0046
• CPC Class Codes: G01N 35/00871 Communications between instruments or with remote terminals

Abstract

A method and apparatus for providing assay information to a portable detection unit, by way of a remote server in communication with the portable detection unit or a consumable with stored information for use with the portable detection unit. Global Positioning System (GPS) information is provided to a portable detection unit having a GPS receiver, so that the unit can determine its current position, including altitude. Based on the determined position, assays and parameters, such as PCR melt temperatures, can be selected. Assays to be performed by the portable detection unit can be selected based on the results of a prior assay.

Claims

1. A system for testing an unknown sample, comprising:

a portable detection unit having stored therein assay parameter information for testing the unknown sample with respect to a plurality of assays; and

a remote server providing updated assay parameter information to the portable detection unit;

wherein the portable detection unit comprises a wireless transceiver for wireless communicating with the remote server and a means for notifying the remote server whenever the portable detection unit is turned on; and

wherein the remote server comprises;

means for determining whether or not current assay parameter information stored therein is different from the assay parameter information stored at the portable detection unit, and for outputting the current assay parameter information to the portable detection unit if there is a difference.

2. The system according to claim 1, further comprising a consumable, wherein the assay parameter information stored on the portable detection unit comprises data specific to a reaction on the consumable.

3. The system according to claim 2, wherein the consumable comprises a memory or a barcode.

4. The system according to claim 3, wherein the memory is an RF ID chip.

5. The system according to claim 3, wherein the portable detection unit can read information stored on the consumable.

6. The system according to claim 2, wherein the consumable is a PCR consumable.

7. The system according to claim 6, wherein the PCR consumable identifies the reagents to use, the number of cycles, the time of each cycle, the temperature for each cycle, temperature profiles, detection temperatures, and/or detection excitation and emission wavelengths.

8. The system according to claim 2, wherein the consumable is removable.

9. The system according to claim 1, further comprising a global positioning device.

10. The system according to claim 1, wherein said system can perform at least two assays for testing a sample, wherein the at least two assays can be of the same assay type or different assay types.

11. The system according to claim 10, wherein the assays comprise PCR.

12. The system according to claim 11, wherein the assays comprise a binding affinity-based assay.

13. The system according to claim 12, wherein the binding affinity-based assay is an antibody binding assay.

14. The system according to claim 10, wherein the assays comprise a first assay and a second assay, wherein the first assay comprises a binding affinity-based assay and wherein the second assay comprises a PCR assay.

15. The system according to claim 10, wherein the assays are of the same type.

16. The system according to claim 10, wherein a result from a first assay is used to determine an assay type of a second assay.

17. A method of testing an unknown sample, comprising:

storing, at a portable detection unit, assay parameter information for testing the unknown sample with respect to a plurality of assays;

wirelessly communicating updated assay parameter information from the remote server to the portable detection unit;

notifying, by the portable detection unit, the remote server whenever the portable detection unit is turned on; and

determining, by the remote server, whether or not current assay parameter information stored therein is different from the assay parameter information stored at the portable detection unit, and outputting the current assay parameter information to the portable detection unit if there is a difference.

18. A system for testing an unknown sample, comprising:

a portable detection unit having stored therein assay parameter information for testing the unknown sample with respect to a plurality of assays; and

a remote server providing updated assay parameter information to the portable detection unit, wherein the assay parameter information includes a minimum melt temperature for each of the plurality of assays;

an altitude determining unit configured to determine a current altitude of the portable detection unit with respect to sea level; and

a melting temperature recalculating unit configured to recalculate the melt temperature for the plurality of assays based on the current height of the portable detection unit.

19. The system according to claim 18, further comprising a prevention unit configured to prevent a particular assay from being run using the portable detection unit, when the recalculated melt temperature is determined to be higher than the minimum melt temperature for the particular assay.

20. The system according to claim 19, wherein prevention unit outputs at least one of an audible or textual warning on a display of the portable detection unit, to inform a user of the prevention of running the particular assay.

21. The system according to claim 18, further comprising a prevention unit configured to prevent a particular assay from being run using the portable detection unit, based on predetermined criteria.