CPC C12Q 1/6806 (2013.01) [B01L 3/502707 (2013.01); B01L 3/502715 (2013.01); B01L 3/50273 (2013.01); B01L 3/502738 (2013.01); C12Q 1/686 (2013.01); G01N 27/44743 (2013.01); G01N 27/44791 (2013.01); B01L 2200/027 (2013.01); B01L 2200/0689 (2013.01); B01L 2200/12 (2013.01); B01L 2300/041 (2013.01); B01L 2300/0654 (2013.01); B01L 2300/0681 (2013.01); B01L 2300/0848 (2013.01); B01L 2300/087 (2013.01); B01L 2300/123 (2013.01); B01L 2400/0406 (2013.01); B01L 2400/0478 (2013.01)] | 20 Claims |
1. An instrument comprising a cartridge interface and a cartridge engaged with the cartridge interface, wherein:
a cartridge comprising:
a body comprising a malleable material, and
a layer comprising a deformable material bonded to a surface of the body and sealing one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body,
wherein:
the one or more valve bodies comprise:
a segment of the channel comprising a wall having a pair of ridges and a floor depressed into the surface, and
reliefs depressed into the surface and defining depressions that flank the ridges on two sides of the segment of the channel; and
the layer is bonded to the surface of the body and to the ridges such that the one or more channels, channel segments and reliefs are sealed, and
wherein a valve body sealed with the layer forms a valve closable by forcing the layer against the floor of the segment of the channel; and
a cartridge interface comprising a plurality of rams, each ram positioned to actuate a valve of the cartridge and comprising a head having a widest dimension that is wider than a channel segment and less wide than a width between the reliefs, so that, when actuated toward the valve, the head presses the deformable material against the ridges and the floor, thereby closing the valve, but clearing the reliefs.
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