Abstract:
A fluidic cartridge for processing a liquid sample comprises a main channel for passing the liquid sample therethrough from an upstream end to a downstream end; and one or more branch channels that join the main channel for introducing liquid and gas into the main channel after the liquid sample has passed downstream of the one or more branch channels. The one or more branch channels including a first branch channel, wherein the first branch channel comprises: a gas inlet for introducing a gas into the first branch channel; a liquid inlet for introducing a liquid into the first branch channel; and a valve configured to move between a closed position in which it prevents liquid and gas in the first branch channel from passing into the main channel and an open position in which it permits liquid and gas in the first branch channel to pass into the main channel.
Abstract:
A disposable fluidic cartridge has a recess therein. A mechanically-actuated mechanism is disposed within the recess for effecting an operation of the fluidic cartridge. The cartridge further comprises a machine-readable identification code on a breakable label covering at least a portion of the recess such that the portion of the breakable label covering the recess may be broken upon insertion of a mechanical actuator into the recess to actuate the mechanically-actuated mechanism. This renders the identification code unreadable and prevents reuse of the cartridge.
Abstract:
A fluid control device comprises a first polymer layer having a top surface, a bottom surface and a void extending through the first polymer layer and having an opening in at least the bottom surface; and a second polymer layer forming a membrane across the void in the first polymer layer. A third polymer layer having a top surface and a bottom surface may also be provided, such that the second polymer layer is disposed between the first and third polymer layers. The bottom surface of the first polymer layer and the top surface of the third polymer layer are in contacting arrangement around at least a portion of the perimeter of the second polymer layer. The fluid control device may be formed by injection-moulding a first polymer layer and subsequently injection-overmoulding a second polymer layer onto at least a portion of the first polymer layer to form a seal between the membrane and the first polymer layer.