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    • 5. 发明授权
    • System and method for syringe plunger engagement with an injector
    • 注射器柱塞与注射器接合的系统和方法
    • US09480797B1
    • 2016-11-01
    • US14925722
    • 2015-10-28
    • BAYER HEALTHCARE LLC
    • Michael J. SwantnerRichard A. SemanBarry L. TuckerArthur E. Uber, IIIKevin P. CowanJames A. DedigChristopher D. Capone
    • A61M5/145A61M5/315
    • A61M5/14566A61M5/14546A61M5/31515A61M2005/14573
    • A plunger for use with a syringe has a plunger body with a proximal end, a distal end, and a circumferential sidewall extending between the proximal end and the distal end along a plunger longitudinal axis. The plunger further has at least one resiliently deflectable retaining member having a first segment attached to the plunger body and a second segment protruding toward the distal end of the plunger body and deflectable relative to the first segment. The plunger further has at least one actuation member associated with the at least one resiliently deflectable retaining member. The at least one actuation member interacts with a piston to deflect the at least one resiliently deflectable retaining member upon rotation of the plunger relative to the piston. The plunger is engagable with the piston regardless of a rotational orientation of the piston relative to the plunger.
    • 用于注射器的柱塞具有柱塞本体,其具有近端,远端和沿着柱塞纵向轴线在近端和远端之间延伸的周向侧壁。 柱塞还具有至少一个可弹性偏转的保持构件,其具有附接到柱塞本体的第一段和朝向柱塞体的远端突出并相对于第一段可偏转的第二段。 柱塞还具有与至少一个可弹性偏转的保持构件相关联的至少一个致动构件。 所述至少一个致动构件与活塞相互作用,以在所述柱塞相对于所述活塞旋转时偏转所述至少一个可弹性偏转的保持构件。 无论活塞相对于柱塞的旋转取向如何,柱塞可与活塞接合。