SAMPLING WITH FITTING BETWEEN NEEDLE AND HOUSING

    公开(公告)号:US20230210420A1

    公开(公告)日:2023-07-06

    申请号:US18011127

    申请日:2021-06-22

    IPC分类号: A61B5/15 A61B5/145

    CPC分类号: A61B5/15 A61B5/14

    摘要: A sampling unit includes a needle for aspirating a sample fluid, a housing, and a fitting. The needle includes a needle tip and a needle channel through the needle for guiding the aspirated sample fluid. The needle channel opens at the needle tip. The housing includes a housing cavity and a housing channel opening into the housing cavity. The fitting includes a fitting cavity and a fitting channel. The fitting is configured for sealingly receiving the needle tip into the fitting cavity and for being inserted into the housing cavity, so that the fitting channel on one side fluidically couples to the needle channel and on another side couples to the housing channel.

    Fluid Valve Having a Coating Containing Gold and/or Platinum

    公开(公告)号:US20190390788A1

    公开(公告)日:2019-12-26

    申请号:US16480600

    申请日:2018-01-23

    摘要: A fluid valve for a sample separation apparatus includes a first valve component and a second valve component, which are adjacent to one another and movable relative to one another. The valve components are configured such that, in at least one switching state, at least one switchable fluid channel is formed between the valve components, and at least one part of a surface of at least one of the first valve component and the second valve component is provided with a coating containing gold and/or platinum.

    Branching off fluidic sample with low influence on source flow path

    公开(公告)号:US10371671B2

    公开(公告)日:2019-08-06

    申请号:US15608888

    申请日:2017-05-30

    摘要: A sample management device which comprises a source flow path in which a fluidic sample can flow, a volume flow adjustment unit configured to adjust a volume flow of the fluidic sample to be branched off from the source flow path at a fluidic coupling point, and a fluidic valve fluidically coupled with the source flow path and with the volume flow adjustment unit, wherein the fluidic valve is switchable into a branch off state in which the fluidic coupling point is established within the source flow path to branch off an adjustable volume of the fluidic sample from the source flow path via the fluidic coupling point while a flow of the fluidic sample in the source flow path continues.

    FLUIDICALLY COUPLING OF SAMPLING AND SEPARATION PATHS

    公开(公告)号:US20240241086A1

    公开(公告)日:2024-07-18

    申请号:US18562216

    申请日:2022-05-17

    IPC分类号: G01N30/22 G01N30/20

    摘要: A switching unit is configured for selectively fluidically coupling a sampling volume, a sampling drive, a mobile phase drive, and a separating device. In a sample load configuration, the switching unit is configured for fluidically coupling the sampling volume and the sampling drive, for moving the fluidic sample into the sampling volume. In a decouple configuration, the switching unit is configured for fluidically coupling the sampling volume between the sampling drive and the separating device, while the mobile phase drive is fluidically decoupled from the separating device. In a sample introduction configuration, the switching unit is configured for fluidically coupling the mobile phase drive, the sampling volume, and the separating device for introducing at least an amount of the fluidic sample stored in the sampling volume into the mobile phase for fluid separation by the separating device.

    Sample injector with conduit tip penetrating into needle opening

    公开(公告)号:US11519885B2

    公开(公告)日:2022-12-06

    申请号:US17239238

    申请日:2021-04-23

    IPC分类号: G01N30/22 G01N30/02

    摘要: A sample injector for a chromatography system is configured for injecting a sample fluid into a mobile phase, and includes a needle and a conduit. The needle is configured for aspirating the sample fluid and includes a needle tip, a needle channel through the needle for guiding the aspirated sample fluid, and a needle opening at the needle tip into which the needle channel opens. The conduit is configured for fluidically coupling with the needle and includes a conduit tip, and a conduit channel through the conduit for guiding fluid and having a conduit opening at the conduit tip. The conduit tip and the needle tip are configured to be pressed against each other for fluidically coupling the conduit channel with the needle channel, with at least a portion of the conduit tip penetrating into the needle opening for providing the fluidic coupling between the conduit and needle channels.