Automated Sample Preparation for Spent Media Analysis

    公开(公告)号:US20230184642A1

    公开(公告)日:2023-06-15

    申请号:US18082177

    申请日:2022-12-15

    IPC分类号: G01N1/38 G01N35/10

    摘要: A method for processing a sample of a cell culture composition includes diluting the sample followed by filtering the diluted sample, wherein the dilution may be at least 10 parts by volume of a diluent to one part sample, and the filter may be a porous membrane with a molecular weight cutoff of less than 20,000 Daltons. The dilution may be carried out at a multiple-port dilution valve having a first condition and a second condition. The sample may be mixed with the diluent at a predetermined dilution ratio when the dilution valve is in the second condition.

    Fluidic connector assembly for quick connect/disconnect

    公开(公告)号:US11187360B2

    公开(公告)日:2021-11-30

    申请号:US15617792

    申请日:2017-06-08

    摘要: A fluidic connection assembly and methods for quickly connecting or disconnecting a tube to a port by hand and without the use of tools. A body is adapted to receive a tube therethrough, and may have at least two sides which are hinged. Each of the hinged sides has corresponding latching portions or projections located near a lower end of the body. These projections are adapted to fit into a port or other fitting and be securely held in place. The assembly may include a tube extending through a body and through a spring located between the end of the body and the end of the tube, whereby the spring exerts a force directly or indirectly against the end of the tube and against the body, thus holding the tubing securely and sealingly engaged in the port when the assembly is connected. The body may further comprise an additional body or an adapter, and/or a cap and latch. A second spring may be used to push a projecting member into a groove or notch of an adapter when an end of the adapter is inserted into one end of the latch or the body. The fluidic connection assembly is useful in analytical instrument systems, such as for in vitro applications and/or in high pressure applications, among other things, and may be used in methods for connecting, or disconnecting, tubing or a fluidic connection assembly from a port or other fitting or connection.

    Method, apparatus, and computer-readable medium for switching optical paths

    公开(公告)号:US10718939B2

    公开(公告)日:2020-07-21

    申请号:US15952756

    申请日:2018-04-13

    发明人: Jozef Sofka

    摘要: Presented is a method, apparatus, and computer-readable medium for selectively switching optical paths. The apparatus includes a directing mirror for redirecting light from an incoming path to one of a plurality of input paths and redirecting the light from one of a plurality of output paths to an outgoing path, and a plurality of input mirrors, each one of the plurality of input mirrors operable for redirecting the light from one of the plurality of input paths to one of a plurality of transition paths. The apparatus includes a plurality of light modifying elements, each one of the light modifying elements in a corresponding transition path and a plurality of output mirrors, each one of the plurality of output mirrors operable for redirecting the light from one of the plurality of transition paths to one of a plurality of output paths.

    Volumetric flow regulation in multi-dimensional liquid analysis systems

    公开(公告)号:US10677766B2

    公开(公告)日:2020-06-09

    申请号:US15459080

    申请日:2017-03-15

    发明人: Carl Sims

    摘要: A multi-dimensional liquid analysis system includes a first dimension system and a second dimension system, wherein outflow from the first dimension system is separated at a flow splitter under controlled conditions. The flow splitter separates the first dimension outflow into first and second split outlet flows, with one of the split outlet flows being metered to a designated flow rate with a flow metering device disposed downstream from the flow splitter. The flow metering device selectively closes or opens an outlet flow path to define a volumetric flow rate along that outlet flow path, so that the other split outlet flow is correspondingly controlled.

    Membrane Gas/Liquid Contactor
    8.
    发明申请

    公开(公告)号:US20190091609A1

    公开(公告)日:2019-03-28

    申请号:US16206216

    申请日:2018-11-30

    IPC分类号: B01D19/00 B01D15/16 B01D63/08

    摘要: A membrane gas-liquid contactor is arranged to define a fluid flow path for contact with a membrane in a manner to improve degassing efficiency. A degassing module housing the membrane is arranged with flow fields for distributing the fluid flow throughout the membrane contact area. The distributed fluid flow may have a uniform membrane contact opportunity.

    Pulse dampener with automatic pressure-compensation

    公开(公告)号:US09829140B2

    公开(公告)日:2017-11-28

    申请号:US14592722

    申请日:2015-01-08

    IPC分类号: F16L55/04

    CPC分类号: F16L55/041 F16L55/043

    摘要: A fluid pulse dampener with automatic pressure-compensation is provided. A system of chambers and channels in the dampener creates an internal feedback mechanism that increases or decreases a compensating pressure on the membrane in response to increases or decreases in the pressure of a fluid moving past the other side of the membrane. Variations of the pulse dampener allow for the input and/or output of gas flow to be restricted or increased as may be desired.