Systems and methods for processing and analyzing samples are disclosed. The system may process samples, such as biological fluids, using assay cartridges which can be processed at different processing locations. In some cases, the system can be used for PCR processing. The different processing locat
Systems and methods for processing and analyzing samples are disclosed. The system may process samples, such as biological fluids, using assay cartridges which can be processed at different processing locations. In some cases, the system can be used for PCR processing. The different processing locations may include a preparation location where samples can be prepared and an analysis location where samples can be analyzed. To assist with the preparation of samples, the system may also include a number of processing stations which may include processing lanes. During the analysis of samples, in some cases, thermal cycler modules and an appropriate optical detection system can be used to detect the presence or absence of certain nucleic acid sequences in the samples. The system can be used to accurately and rapidly process samples.
대표청구항▼
1. An assay cartridge, comprising: an elongated body, comprising:(a) a reaction well formed in the elongated body and including a first sidewall, a second sidewall, a first endwall, a second endwall, and a well floor arranged to receive a reaction mixture, the first sidewall, the second sidewall, th
1. An assay cartridge, comprising: an elongated body, comprising:(a) a reaction well formed in the elongated body and including a first sidewall, a second sidewall, a first endwall, a second endwall, and a well floor arranged to receive a reaction mixture, the first sidewall, the second sidewall, the first endwall, and the second endwall forming an open end, and the first sidewall and the second sidewall being generally parallel to an axis of the assay cartridge,(b) a plurality of reagent compartments formed in the elongated body, each reagent compartment including an upper end and respectively comprising a plurality of reagents useful for extracting a nucleic acid,(c) a barrier film covering the upper ends of the plurality of reagent compartments,(d) a film piercer capable of piercing the barrier film, and(e) a retaining location in the elongated body formed to hold the film piercer,wherein the first endwall includes a first segment and a second segment, the first and second segment joined by a bend, at least one of the first segment and second segment being tapered so that a cross section of the reaction well decreases closer to the well floor,wherein a mid-plane is defined by the first sidewall and the second sidewall, and the second segment has a radius about the mid-plane to create a culvert, andwherein the retaining location comprises the open end of the reaction well and holds the film piercer, such that the film piercer substantially covers the open end of the reaction well. 2. The assay cartridge of claim 1, wherein the first segment is closer to the open end than the second segment and has a first taper, and the second segment is farther from the open end than the first segment and has a second taper, the second taper being greater compared to the first taper so as to decrease the cross section of the reaction well at a greater rate. 3. The assay cartridge of claim 1, wherein the culvert is further defined by a segment of a frusto-conical surface. 4. The assay cartridge of claim 1, wherein the first sidewall includes a tapered segment adjacent to the well floor, the tapered segment being arranged to decrease the cross section of the reaction well close to the well floor. 5. The assay cartridge of claim 1, wherein the well floor is tapered, and the second segment is adjacent to the well floor. 6. The assay cartridge of claim 2, wherein the first taper comprises a first interior surface, the first interior surface facing a center of the well, and the second taper comprises a second interior surface, the second interior surface facing the center of the well, the first interior surface and the second interior surface having obtuse angles relative to a vertical axis of the reaction well. 7. The assay cartridge of claim 2, wherein the first taper comprises a first interior surface, the first interior surface facing a center of the well, and angled from 150° to 170° relative to a vertical axis of the reaction well, and wherein the second taper comprises a second interior surface, the second interior surface facing the center of the well and angled from 135° to 155° relative to the vertical axis of the reaction well. 8. The assay cartridge of claim 2, wherein the first taper comprises a first interior surface, the first interior surface facing a center of the well and angled about 160° relative to a vertical axis of the reaction well, and wherein second taper comprises a second interior surface, the second interior surface facing the center of the well and angled about 145° relative to the vertical axis of the reaction well. 9. The assay cartridge of claim 1, further comprising an additional compartment formed in the elongated body that contains at least one of a pipette tip, a reaction vessel, a magnetically responsive particle, and a reagent. 10. The assay cartridge of claim 1, further comprising an additional compartment holding a pipette tip. 11. The assay cartridge of claim 1, wherein the first and second sidewalls taper toward a midline of the assay cartridge. 12. The assay cartridge of claim 1, further comprising: first and second longitudinal walls, and first and second transverse walls,wherein the first and second longitudinal walls and the first and second transverse walls surround the open end of the reaction well and form a containment region. 13. The assay cartridge of claim 1, wherein the assay cartridge comprises a proximal end and a distal end, and wherein the first endwall is a proximal endwall. 14. The assay cartridge of claim 13, wherein the reaction well is arranged at the proximal end of the assay cartridge and an additional compartment is arranged at the distal end of the reagent cartridge. 15. The assay cartridge of claim 1, further comprising a vertical web formed in the elongated body. 16. The assay cartridge of claim 15, further comprising a keying feature formed in the vertical web. 17. The assay cartridge of claim 1, wherein the elongated body further comprises a tip compartment in the elongated body, the tip compartment including a pipette tip. 18. The assay cartridge of claim 17, wherein the film piercer includes a closed end and a gripping end, the closed end including a piercing element, and the gripping end being formed for engaging a mandrel of a pipettor. 19. The assay cartridge of claim 18, wherein the piercing element includes a pyramidal blade. 20. The assay cartridge of claim 1, wherein the elongated body further comprises a floor connecting the upper ends of each reagent compartment of the plurality of reagent compartments, a skirting wall lateral to and parallel to the mid-plane and extending from the floor above the upper ends, and a cartridge flange parallel to the floor and extending lateral to the skirting wall, wherein the plurality of reagent compartments and the reaction well align with each other in a single file. 21. The assay cartridge of claim 20, wherein the cartridge flange is not coplanar with the floor.
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