Structure for determination of item of interest in a sample

• US 6,562,298 B1
• Filed: 04/23/1999
• Issued: 05/13/2003
• Est. Priority Date: 09/19/1996
• Status: Expired due to Term

• Current Assignee: Abbott Laboratories
• Original Assignee: Abbott Laboratories
• Inventors: Mitchell, James E., Gardner, Gregory E., Fritchie, Patrick P., Galitz, Charles M., Toth, Julius J., Murray, David W., Dunn, Chadwick M., Gray, Robert C., Ramsey, Jack F., Luoma, Robert P. II, Arnquist, David C., Holen, James T., Grandone, Cass J., Barnes, Grady III, Murray, Adrian John, McCoy, Jimmy D., Sleszynski, Neal T., Button, Richard D., East, Richard C. Jr.
• Primary Examiner(s): Warden, Jill
• Assistant Examiner(s): Bex, Kathryn
• Application Number:
  US09/298,711
• Time in Patent Office: 1,481 Days
• Field of Search: 422/63, 422/64, 422/65, 422/67, 422/68.1, 422/82.05, 436/47, 436/48, 436/49, 436/50, 198/348, 198/357, 198/347.4
• US Class Current: 422/63
• CPC Class Codes: G01N 2035/00534 Mixing by a special element, e.g. stirrer
• CPC Class Codes: G01N 2035/00752 bar codes
• CPC Class Codes: G01N 2035/0465 Loading or unloading the conveyor
• CPC Class Codes: G01N 2035/0467 Switching points ("aiguillages")
• CPC Class Codes: G01N 35/0092 Scheduling
• CPC Class Codes: G01N 35/025 having a carousel or turntable for reaction cells or cuvettes
• CPC Class Codes: G01N 35/04 Details of the conveyor system G01N35/021 - G01N35/028 take precedence
• CPC Class Codes: Y10T 436/11 Automated chemical analysis
• CPC Class Codes: Y10T 436/113332 with conveyance of sample along a test line in a container or rack
• CPC Class Codes: Y10T 436/114165 with step of insertion or removal from test line
• CPC Class Codes: Y10T 436/114998 with treatment or replacement of aspirator element [e.g., cleaning, etc.]
• CPC Class Codes: Y10T 436/115831 Condition or time responsive

Abstract

The embodiments disclosed relate to determination of an item of interest in a sample. One embodiment relates to a structure which comprises a process path. The process path comprises a process lane including a process step performance lane where a process step is performed, and a process step avoidance lane where the process step is avoided. A first prime mover is operatively connected with the process path for moving a container holding the sample along the process path. A first pipetting system is operatively associated with the process path for introducing the sample to the container. A second pipetting system is operatively associated with the process path for introducing a reagent to the container. A device is operatively connected with the process path and is selectively engagable with the container for mixing the sample and the reagent in the container. A second prime mover is operatively connected with the process path for selectively positioning the container in a selected one of the process step performance lane and the process step avoidance lane. A reader is operatively connected with the process path for determining the item of interest in the sample based upon a reaction between the sample and the reagent.

Claims

1. A structure for performing a process for determining an item of interest in a sample, the structure comprising:

(a) a process path, the process path comprising;

(i) a process lane in which a reaction container is moved, the process lane diverging into

(ii) a process step performance lane where a process step of a process for determining the item of interest in the sample is performed, and

(iii) a process step avoidance lane where no process step of the process for determining the item of interest in the sample is performed, the process step performance lane and the process step avoidance lane being disposed substantially side by side, both the process step performance lane and the process step avoidance lane converging to the process lane;

(b) a first prime mover operatively connected with the process path for moving the reaction container along the process lane, said first prime mover, by itself, being (i) capable of moving the reaction container so as to enable the reaction container to simultaneously pass through the process step performance lane and along side of the process step avoidance lane and being (ii) capable of moving the reaction container so as to enable the reaction container to simultaneously pass along side of the process step performance lane and through the process step avoidance lane;

(c) a first pipetting system operatively associated with the process step performance lane for introducing the sample to the reaction container moved along the process lane;

(d) a second pipetting system operatively associated with the process step performance lane for introducing a reagent to the reaction container moved along the process lane;

(e) a device operatively connected with the process step performance lane and selectively engagable with the reaction container for mixing the sample and the reagent in the reaction container moved along the process lane;

(f) a second prime mover operatively connected with the process path for selectively positioning the reaction container in the process step performance lane or the process step avoidance lane; and

(g) a reader operatively connected with the process step performance lane for determining the item of interest in the sample based upon a reaction between the sample and the reagent contained within the reaction container.

2. A structure as defined in claim 1 wherein the process path further comprises:

(iv) a cover;

(v) a base connected with the cover; and

(vi) a disk rotatably disposed between the cover and the base.

3. A structure as defined in claim 2 further comprising a drain duct disposed on at least one of the cover or the base for facilitating removal of fluid from the process path.

4. A structure as defined in claim 2 further comprising a slot disposed on the disk for accepting the reaction container.

5. A structure as defined in claim 4 wherein the slot has a longitudinal axis and wherein the reaction container is movable within the slot along the longitudinal axis.

6. A structure as defined in claim 5 further comprising a third prime mover operatively connected with the process path and engagable with the reaction container for moving the reaction container along the longitudinal axis.

7. A structure as defined in claim 5 wherein the process path further comprises:

(iv) means for moving the reaction container along the longitudinal axis.

8. A structure as defined in claim 4 wherein the slot has a latitudinally expanded width to facilitate removal of the reaction container from the slot.

9. A structure as defined in claim 1 wherein the process path further comprises:

(iv) a loading lane for accepting the reaction container from a reaction container supply, the loading lane being operatively connected with the process lane so that the reaction container can move between the loading lane and the process lane.

10. A structure as defined in claim 9 wherein the process path further comprises:

(v) a passageway operatively connecting the loading lane and the process lane for allowing the reaction container to move from the loading lane to the process lane.

11. A structure as defined in claim 10 further comprising:

(h) a third prime mover operatively connected with the process path for moving the reaction container through the passageway.

12. A structure as defined in claim 1 further comprising:

(h) a magnet connected with the process path such that the reaction container moved along the process lane encounters the magnet.

13. A structure as defined in claim 1 further comprising:

(h) a carousel disposed adjacent the process path for supplying the reagent to the second pipetting system.

14. A structure as defined in claim 1 further comprising:

(h) a wash station operatively connected with the process path for washing the reaction cuvette moved along the process lane.

15. A structure for performing a process for determining an item of interest in a sample, the structure comprising:

(a) a process path, the process path comprising;

(i) a process lane accepting a reaction container, the process lane diverging into

(ii) a process step performance lane where a process step of a process for determining the item of interest in the sample is performed, and

(iii) a process step avoidance lane where no process step of the process for determining the item of interest in the sample is performed, the process step performance lane and the process step avoidance lane being disposed substantially side by side, both the process step performance lane and the process step avoidance lane converging to the process lane;

(iv) a cover;

(v) a base connected with the cover; and

(vi) a disk rotatably disposed between the cover and the base, said structure further including, a first prime mover that, by itself, is (i) capable of moving the reaction container so as to enable the reaction container to simultaneously pass through the process step performance lane and along side of the process step avoidance lane and is (ii) capable of moving the reaction container so as to enable the reaction container to simultaneously pass along side of the process step performance lane and through the process step avoidance lane.

16. A structure as defined in claim 15 further comprising:

(b) a prime mover operatively connected with the process path for selectively positioning the reaction container on the process step performance lane or the process step avoidance lane.

17. A structure as defined in claim 15 further comprising a drain duct disposed on at least one of the cover or the base for facilitating removal of fluid from the process path.

18. A structure as defined in claim 17 wherein the disk rotates in a first direction and the drain duct is oriented in the first direction to facilitate removal of fluid from the structure.

19. A structure as defined in claim 15 wherein the process path further comprises a belt movably disposed between the cover and the base, and the process lane is formed on at least one of the cover and the base.