Instrument for cassette for sample preparation
First Claim
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1. An apparatus, comprising:
- an instrument enclosure configured to contain a plurality of cassettes, 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;
a particle transfer system disposed within the instrument enclosure, the particle transfer system including a plurality of valve key shafts and a first actuator assembly, the first actuator assembly configured to move the plurality of valve key shafts between a first position and a second position, in the first position each valve key shaft from the plurality of valve key shafts is disposed apart from a corresponding cassette from the plurality of cassettes, in the second position each valve key shaft from the plurality of valve key shafts is engaged with the valve of the corresponding cassette from the plurality of cassettes; and
a reagent release system disposed within the instrument enclosure, the reagent release system including a plurality of protrusions and a second actuator assembly, the second actuator assembly configured to move the 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,the second actuator assembly configured to move 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,the second actuator assembly configured to move the protrusion from the plurality of protrusions into contact with a plunger associated with the second reagent chamber of the corresponding cassette to transfer a second reagent from the second 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.
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Citations
20 Claims
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1. An apparatus, comprising:
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an instrument enclosure configured to contain a plurality of cassettes, 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; a particle transfer system disposed within the instrument enclosure, the particle transfer system including a plurality of valve key shafts and a first actuator assembly, the first actuator assembly configured to move the plurality of valve key shafts between a first position and a second position, in the first position each valve key shaft from the plurality of valve key shafts is disposed apart from a corresponding cassette from the plurality of cassettes, in the second position each valve key shaft from the plurality of valve key shafts is engaged with the valve of the corresponding cassette from the plurality of cassettes; and a reagent release system disposed within the instrument enclosure, the reagent release system including a plurality of protrusions and a second actuator assembly, the second actuator assembly configured to move the 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, the second actuator assembly configured to move 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, the second actuator assembly configured to move the protrusion from the plurality of protrusions into contact with a plunger associated with the second reagent chamber of the corresponding cassette to transfer a second reagent from the second reagent chamber into the first chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus, comprising:
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an instrument enclosure configured to contain a plurality of cassettes, 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 including a puncturable member and defining a first reagent chamber and a second reagent chamber, the puncturable member disposed between the first chamber and each of the first reagent chamber and the second reagent chamber such that the first chamber is fluidically isolated from each of the first reagent chamber and the second reagent chamber; a particle transfer system disposed within the instrument enclosure, the particle transfer system including a plurality of valve key shafts and a first actuator assembly, the first actuator assembly configured to move the plurality of valve key shafts between a first position and a second position, in the first position each valve key shaft from the plurality of valve key shafts is disposed apart from a corresponding cassette from the plurality of cassettes, in the second position each valve key shaft from the plurality of valve key shafts is engaged with the valve of the corresponding cassette from the plurality of cassettes; and a reagent release system disposed within the instrument enclosure, the reagent release system configured to puncture the puncturable member to place at least one of the first reagent chamber or the second reagent chamber in fluid communication with the first chamber, the reagent release system including a plurality of protrusions and a second actuator assembly, the second actuator assembly configured to move the plurality of protrusions between a first protrusion position, in which each protrusion from the plurality of protrusions is substantially aligned with a first portion of the puncturable member from the corresponding cassette and a second protrusion position in which each protrusion from the plurality of protrusions is substantially aligned with a second portion of the puncturable member from the corresponding cassette. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An apparatus, comprising:
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an instrument enclosure configured to contain a plurality of cassettes, 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 reagent chamber containing a reagent, each cassette from the plurality of cassettes including a pump configured to mix the reagent with the particle within the first chamber; a particle transfer system disposed within the instrument enclosure, the particle transfer system including a plurality of valve key shafts and a first actuator assembly, the first actuator assembly configured to move the plurality of valve key shafts between a first position and a second position, in the first position each valve key shaft from the plurality of valve key shafts is disposed apart from a corresponding cassette from the plurality of cassettes, in the second position each valve key shaft from the plurality of valve key shafts is engaged with the valve of the corresponding cassette from the plurality of cassettes; and a reagent release system disposed within the instrument enclosure, the reagent release system including a plurality of protrusions and a second actuator assembly, the second actuator assembly configured to move the plurality of protrusions between a first protrusion position, in which each protrusion from the plurality of protrusions is substantially aligned with the 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 pump from the corresponding cassette, the second actuator assembly configured to move a protrusion from the plurality of protrusions into contact with a plunger associated with the reagent chamber of the corresponding cassette to transfer a reagent from the reagent chamber into the first chamber, the second actuator assembly configured to move the protrusion from the plurality of protrusions into contact with the pump to actuate the pump. - View Dependent Claims (17, 18, 19, 20)
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Specification