TAMPER EVIDENT SYRINGE AND CAP
    1.
    发明公开

    公开(公告)号:US20240245870A1

    公开(公告)日:2024-07-25

    申请号:US18100058

    申请日:2023-01-23

    CPC classification number: A61M5/5086 A61M5/3129 A61M5/3202 A61M2005/3142

    Abstract: A syringe that includes an adapter section and a barrel having a chamber that holds a fluid. The adapter section includes outer and inner walls that form a first groove. The inner wall includes barrel threads and the outer wall includes a first projection. A cap having cap threads engages the barrel threads to removably attach the cap to the adapter section. A locking element having a sidewall that includes a second projection is received in the first groove and removably attached to the cap by an interference fit. Rotation of the cap causes upward movement of the cap that overcomes the interference fit thereby removing the cap. The locking element is prevented from being removed from the first groove due to contact between the first and second projections. Presence of the locking element in the first groove after the cap is removed provides evidence of tampering.

    SYRINGE WITH CONCENTRIC DUAL CHAMBERS
    3.
    发明公开

    公开(公告)号:US20240173480A1

    公开(公告)日:2024-05-30

    申请号:US18071893

    申请日:2022-11-30

    CPC classification number: A61M5/19 A61M5/31576 A61M2005/3128

    Abstract: A dual chamber syringe facilitates selective drug mixing, dosing, and administration through catheters or other vascular accessing devices (VADs), as well as pre- or post-administration flushing of catheters with a single syringe instrument. A syringe barrel incorporates an outlet, such as a Luer connector, variable-volume, primary and secondary, concentrically oriented, fluid chambers, with nested respective plungers, plunger rods capable of selective translation within the barrel interior along a common axis, and plunger stoppers. A selectively resealable valve disposed within the barrel interior, selectively isolates the secondary fluid chamber from fluid communication with the primary fluid chamber and/or the outlet of the syringe barrel. In some embodiments, the valve is a one-way valve. In some embodiments, the syringe is prepackaged with flushing solution in the secondary fluid chamber, enabling sequential drug administration with the primary fluid chamber and immediate flushing with the secondary chamber.

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