Instrument for cassette for sample preparation
First Claim
Patent Images
1. A method, comprising:
- disposing a plurality of cassettes into an instrument enclosure, each cassette from the plurality of cassettes including a valve member defining a cavity within which a particle can be disposed, the valve member configured to transfer the particle between a first chamber of the cassette and a second chamber of the cassette, each cassette from the plurality of cassettes defining a first reagent chamber and a second reagent chamber;
moving a plurality of valve shafts between a first position and a second position to apply a magnetic force produced by a magnetic portion of each valve shaft to attract the particle into the cavity of the valve member of the corresponding cassette from the plurality of cassettes;
rotating each valve shaft from the plurality of valve shafts when the plurality of valve shafts is in the second position to transfer the particle between the first chamber of the cassette and the second chamber of the cassette;
moving a plurality of protrusions between a first protrusion position, in which each protrusion from the plurality of protrusions is substantially aligned with the first reagent chamber from the corresponding cassette and a second protrusion position, in which each protrusion from the plurality of protrusions is substantially aligned with the second reagent chamber from the corresponding cassette; and
moving, when the plurality of protrusions is in the first protrusion position, a protrusion from the plurality of protrusions into contact with a plunger associated with the first reagent chamber of the corresponding cassette to transfer a first reagent from the first reagent chamber into the first chamber.
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Abstract
A parallel processing system for processing samples is described. In one embodiment, the parallel processing system includes an instrument interface parallel controller to control a tray motor driving system, a close-loop heater control and detection system, a magnetic particle transfer system, a reagent release system, a reagent pre-mix pumping system and a wash buffer pumping system.
126 Citations
20 Claims
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1. A method, comprising:
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disposing a plurality of cassettes into an instrument enclosure, each cassette from the plurality of cassettes including a valve member defining a cavity within which a particle can be disposed, the valve member configured to transfer the particle between a first chamber of the cassette and a second chamber of the cassette, each cassette from the plurality of cassettes defining a first reagent chamber and a second reagent chamber; moving a plurality of valve shafts between a first position and a second position to apply a magnetic force produced by a magnetic portion of each valve shaft to attract the particle into the cavity of the valve member of the corresponding cassette from the plurality of cassettes; rotating each valve shaft from the plurality of valve shafts when the plurality of valve shafts is in the second position to transfer the particle between the first chamber of the cassette and the second chamber of the cassette; moving a plurality of protrusions between a first protrusion position, in which each protrusion from the plurality of protrusions is substantially aligned with the first reagent chamber from the corresponding cassette and a second protrusion position, in which each protrusion from the plurality of protrusions is substantially aligned with the second reagent chamber from the corresponding cassette; and moving, when the plurality of protrusions is in the first protrusion position, a protrusion from the plurality of protrusions into contact with a plunger associated with the first reagent chamber of the corresponding cassette to transfer a first reagent from the first reagent chamber into the first chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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disposing a plurality of cassettes into an instrument enclosure, each cassette from the plurality of cassettes including a valve member defining a cavity within which a particle can be disposed, the valve member configured to transfer the particle between a first chamber of the cassette and a second chamber of the cassette, each cassette from the plurality of cassettes including a reagent module defining a first reagent chamber and a second reagent chamber; moving a plurality of valve shafts between a first position and a second position to apply a magnetic force produced by a magnetic portion of each valve shaft to attract the particle into the cavity of the valve member of the corresponding cassette from the plurality of cassettes; rotating each valve shaft from the plurality of valve shafts when the plurality of valve shafts is in the second position to transfer the particle between the first chamber of the cassette and the second chamber of the cassette; moving a plurality of protrusions to a first protrusion position to transfer a first reagent from the first reagent chamber into the first chamber, each protrusion from the plurality of protrusions is at least partially within the first reagent chamber from the corresponding cassette when the plurality of protrusions is in the first protrusion position; and moving the plurality of protrusions to a second protrusion position to transfer a second reagent from the second reagent chamber into the first chamber, each protrusion from the plurality of protrusions is at least partially within the second reagent chamber from the corresponding cassette when the plurality of protrusions is in the second protrusion position. - View Dependent Claims (9, 10, 11, 12)
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13. A method, comprising:
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disposing a plurality of cassettes into an instrument enclosure, each cassette from the plurality of cassettes including a valve configured to transfer a particle between a first chamber of the cassette and a second chamber of the cassette while maintaining fluid isolation between the first chamber and the second chamber, each cassette from the plurality of cassettes defining a first reagent chamber and a second reagent chamber; moving a plurality of valve shafts between a first position and a second position, in the first position each valve shaft from the plurality of valve shafts is disposed apart from a corresponding cassette from the plurality of cassettes, in the second position each valve shaft from the plurality of valve shafts is engaged with the valve of the corresponding cassette from the plurality of cassettes; moving a plurality of protrusions between a first protrusion position, in which each protrusion from the plurality of protrusions is substantially aligned with the first reagent chamber from the corresponding cassette and a second protrusion position, in which each protrusion from the plurality of protrusions is substantially aligned with the second reagent chamber from the corresponding cassette; and moving, when the plurality of protrusions is in the first protrusion position, a protrusion from the plurality of protrusions into contact with a plunger associated with the first reagent chamber of the corresponding cassette to transfer a first reagent from the first reagent chamber into the first chamber. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification