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    Syringe piston with check valve seal
    1.
    发明授权
    Syringe piston with check valve seal 有权
    注射活塞带止回阀密封

    公开(公告)号：US09199043B2

    公开(公告)日：2015-12-01

    申请号：US14041039

    申请日：2013-09-30

    Applicant: MEDTRONIC MINIMED, INC.

    Inventor： Sarnath Chattaraj ,  Poonam S. Gulati ,  Lance P. Hoffman ,  Kiem Dang

    IPC: A61M5/315 ,  A61M5/36

    CPC classification number: A61M5/36 ,  A61M5/31511 ,  A61M5/31513 ,  Y10T29/49826

    Abstract: A fluid syringe of the type used with fluid infusion devices is presented here. The fluid syringe generally includes a barrel, a piston, and a check valve seal. The barrel has an interior wall and a sealed main fluid chamber. The piston is slidably coupled within the barrel, and the piston has a piston seal forming an interference fluid seal against the interior wall. The check valve seal is coupled to the piston, and it is located between the piston seal and the main fluid chamber. The check valve seal forms an interference fluid seal against the interior wall when the piston is unloaded, and it disengages the interior wall to allow gas flow from the main fluid chamber toward the piston seal when the piston is loaded.

    Abstract translation: 这里介绍了一种与流体输注装置一起使用的流体注射器。 流体注射器通常包括桶，活塞和止回阀密封。 桶具有内壁和密封的主流体室。 活塞可滑动地联接在筒内，并且活塞具有形成抵抗内壁的干涉流体密封的活塞密封件。 止回阀密封件联接到活塞，并且其位于活塞密封件和主流体室之间。 止回阀密封件在活塞卸载时形成抵靠内壁的干涉流体密封，并且当活塞被装载时，止回阀密封件脱离内壁以允许气体从主流体室流向活塞密封件。

    SYRINGE PISTON WITH CHECK VALVE SEAL
    2.
    发明申请
    SYRINGE PISTON WITH CHECK VALVE SEAL 审中-公开
    具有检查阀密封的SYRINGE活塞

    公开(公告)号：US20140031749A1

    公开(公告)日：2014-01-30

    申请号：US14041039

    申请日：2013-09-30

    Applicant: MEDTRONIC MINIMED, INC.

    Inventor： Sarnath Chattaraj ,  Poonam S. Gulati ,  Lance P. Hoffman ,  Kiem Dang

    IPC: A61M5/36 ,  A61M5/315

    CPC classification number: A61M5/36 ,  A61M5/31511 ,  A61M5/31513 ,  Y10T29/49826

    Abstract: A fluid syringe of the type used with fluid infusion devices is presented here. The fluid syringe generally includes a barrel, a piston, and a check valve seal. The barrel has an interior wall and a sealed main fluid chamber. The piston is slidably coupled within the barrel, and the piston has a piston seal forming an interference fluid seal against the interior wall. The check valve seal is coupled to the piston, and it is located between the piston seal and the main fluid chamber. The check valve seal forms an interference fluid seal against the interior wall when the piston is unloaded, and it disengages the interior wall to allow gas flow from the main fluid chamber toward the piston seal when the piston is loaded.

    Abstract translation: 这里介绍了一种与流体输注装置一起使用的流体注射器。 流体注射器通常包括桶，活塞和止回阀密封。 桶具有内壁和密封的主流体室。 活塞可滑动地联接在筒内，并且活塞具有形成抵抗内壁的干涉流体密封的活塞密封件。 止回阀密封件联接到活塞，并且其位于活塞密封件和主流体室之间。 止回阀密封件在活塞卸载时形成抵靠内壁的干扰流体密封，并且当活塞被装载时，止回阀密封件脱离内壁以允许气体从主流体室流向活塞密封件。

    MEDICAL DEVICE WITH EXTENDED WEAR ADHESIVE PATCH
    4.
    发明申请
    MEDICAL DEVICE WITH EXTENDED WEAR ADHESIVE PATCH 审中-公开

    公开(公告)号：US20190336078A1

    公开(公告)日：2019-11-07

    申请号：US16400878

    申请日：2019-05-01

    Applicant: MEDTRONIC MINIMED, INC.

    Inventor： Kiem Dang ,  Sarnath Chattaraj ,  Hsi C. Fusselman ,  Guangping Zhang

    IPC: A61B5/00 ,  A61B5/1486 ,  A61M5/142 ,  A61B5/145

    Abstract: An adhesive patch for a medical device having a hub, such as an infusion device, is provided. The adhesive patch includes a first backing layer to be coupled to the medical device. The first backing layer is composed of a first material. The adhesive patch includes a first adhesive layer coupled to the first backing layer and a second backing layer coupled to the first adhesive layer. The second backing layer is composed of a second material, and the second material is different than the first material. The adhesive patch includes a biocompatible second adhesive layer coupled to the second backing layer, and the second adhesive layer is to be coupled to an anatomy.

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