FLUID DELIVERY DEVICE WITH PASSIVE PRESSURE EQUILIBRATION

    公开(公告)号:US20240058813A1

    公开(公告)日:2024-02-22

    申请号:US17891636

    申请日:2022-08-19

    Abstract: A fluid delivery device is configured to create a pressure differential across a compartment in which a liquid resides, causing the liquid to flow through the compartment. After a period of time, the fluid delivery device is configured to eliminate the pressure differential and thereby equilibrate the pressure across the compartment, with the use of a pressure equilibration channel that is separate from the compartment. The compartment may contain a packed bed of solid phase particles such as beads. In such case, the pressure differential causes the liquid to flow through the packed bed. The liquid may include chemical reagents or precursors that participate in chemical reactions on or at the solid phase particles. The reactions may relate to chemical synthesis, for example the synthesis of bio-chemicals such as nucleotides.

    MICROFLUIDIC VALVE
    9.
    发明公开
    MICROFLUIDIC VALVE 审中-公开

    公开(公告)号:US20230226547A1

    公开(公告)日:2023-07-20

    申请号:US17923280

    申请日:2021-05-05

    Applicant: Kilobaser GmbH

    Abstract: A microfluidic valve includes a carrier layer and a flexible membrane layer arranged on a surface of the carrier layer. The surface of the carrier layer has a valve chamber in the form of a spherical cap and a membrane formed by the flexible membrane layer covers at least the valve chamber. A plurality of microfluidic channels opening into the valve chamber are formed in the surface of the carrier layer. Moreover, an inflow channel and an outflow channel are connected to one another by a microfluidic connection channel. The connection channel and the valve chamber are positioned relative to each other in such a way that in the closed state of the membrane, a fluid can flow from the inflow channel via the connection channel into the outflow channel to bridge the valve chamber, while the at least one supply channel is closed by the membrane.

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