Demountable, replaceable aspirating needle cartridge assembly
    1.
    发明授权
    Demountable, replaceable aspirating needle cartridge assembly 失效
    可拆卸的,可更换的吸头针筒组件

    公开(公告)号:US5279796A

    公开(公告)日:1994-01-18

    申请号:US28752

    申请日:1993-03-09

    摘要: An aspiration apparatus primarily including a biohazard-safe aspirating cartridge assembly for use with material which might be hazardous to humans. The cartridge assembly includes a longitudinally expandable and contractible washing chamber, within which a fluid aspirating needle is longitudinally positioned. Opposite ends of the washing chamber are secured to a pair of telescopically slidable mounting members, which are pluggably mountable to an operably associated support. A locking element surrounds one of the mounting members, for preventing accidental/premature telescoping. Intentional release of the locking element enables the pair of slidable members to be telescoped together by the drive means, causing the washing chamber to contract, permitting the tip of the aspirating needle to be extended out of the chamber, for penetration of an operably associated sealed container of material, for example whole blood.

    摘要翻译: 一种吸气装置,主要包括一种可能对人类有害的材料使用的生物危害安全的吸液筒组件。 药筒组件包括纵向可膨胀和可收缩的洗涤室,流体抽吸针在其内纵向定位。 洗涤室的相对端固定到一对可伸缩滑动的安装构件,其可插拔地安装到可操作地相关联的支撑件上。 围绕其中一个安装构件的锁定元件,用于防止意外/过早伸缩。 锁定元件的有意释放使得一对可滑动构件能够通过驱动装置伸缩在一起,导致洗涤室收缩,从而允许吸引针的尖端延伸出腔室,以便穿透可操作地相关联的密封 物质容器,例如全血。

    Bellows pump and actuating apparatus
    2.
    发明授权
    Bellows pump and actuating apparatus 失效
    波纹管泵和执行装置

    公开(公告)号:US4887473A

    公开(公告)日:1989-12-19

    申请号:US257597

    申请日:1988-10-14

    IPC分类号: G01N1/00 G01N1/14

    CPC分类号: G01N1/14

    摘要: Bellows pump and actuating apparatus for automatically aspirating biological sample fluid material into and through an aspirating probe from a source of fluid sample material, into and through a sample segmenting valve for passage through a counting device. A plurality of bellows members, each having an axis of compression and expansion, has one end mounted on a fixed member. Timing and stroke members are provided for actuating movement of the other end of the bellows members, which are free to be moved parallel to their axis. A positioning member positions the timing and stroke members coaxially of the bellows members at preselected times. A drive member moves the timing and stroke members parallel to the axis of compression and expansion of the bellows members. Photo-optical indicating members, cooperating with the positioning member, interrupts the drive to the positioning member when the timing and stroke members are coaxially aligned with the bellows members. Thereupon, the drive member actuates the timing and stroke members for compressing or expanding the bellows, effectively producing pressure or vacuum to aspirate the biological sample fluid material into and through the counting device. Aspirating probe washing and drying apparatus is operably connected to the segmenting valve and includes a sealing member for sealing the probe from the ambient atmosphere and a biohazard containment member for avoiding operator contact with the sample fluid material during operation of the apparatus.

    摘要翻译: 波纹管泵和致动装置,用于将生物样品流体材料自动吸入并通过抽吸探针从流体样品材料源进入并通过样品分段阀,以通过计数装置。 多个具有压缩和膨胀的轴的波纹管构件具有安装在固定构件上的一端。 提供了定时和行程构件,用于致动波纹管构件的另一端的运动,这些构件自由地平行于其轴线移动。 定位构件将定时和冲程构件在预选时间定位在波纹管构件的同轴上。 驱动构件将定时和冲程构件平行于波纹管构件的压缩和膨胀的轴线移动。 当定时和行程构件与波纹管构件同轴对准时,与定位构件配合的光电指示构件中断定位构件的驱动。 于是,驱动构件致动用于压缩或膨胀波纹管的定时和行程构件,有效地产生压力或真空以将生物样品流体材料吸入并通过计数装置。 吸气探针洗涤和干燥装置可操作地连接到分段阀,并且包括用于将探针与周围大气密封的密封构件和用于避免操作者在操作装置期间操作者与样品流体材料接触的生物危害物容纳构件。