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    • 6. 发明授权
    • Mechanism for fixing a blood centrifuge bowl to a rotating spindle
    • 将血液离心机碗固定在旋转主轴上的机构
    • US5964690A
    • 1999-10-12
    • US820201
    • 1997-03-19
    • David W. WrightMark T. PattonLee W. Travis
    • David W. WrightMark T. PattonLee W. Travis
    • A61M1/02B04B7/00B04B9/12B04B15/00
    • B04B7/00Y10T279/17529Y10T279/247
    • A mechanism for fixing a blood centrifuge bowl to a rotating spindle is disclosed having two parts. The first part converts downward movement of an outer collar of a chuck into inward and downward pressure against a blood bowl to be secured in the chuck. The second part of the invention converts centrifugal forces present in a rotating chuck into downward pressure on the collar described above. In the preferred embodiment of the invention, the chuck comprises a base plate, plungers, a finger ring and a collar. The base plate receives and positions the blood bowl. The finger ring has a series of fingers located around its upper periphery that pivot around living hinges into contact with the blood bowl. The collar has an annular sloping finger contacting surface that contacts the outer surface of the fingers and forces them inward and downward into contact with the blood bowl. The base plate has a series of outwardly directed bores that hold plungers. Under rotation of the chuck, the plungers move outward in the bores under centrifugal force and contact a sloped plunger contacting surface on the inner surface of the collar. As the centrifugal force increases, the pressure exerted on the plunger contacting surface by the outer ends of the plungers increase causing the collar to be pressured to move downward. Downward pressure on the collar is translated into downward pressure on the finger contacting surface which in turn is translated into inward and downward pressure on the blood bowl.
    • 公开了一种用于将血液离心机碗固定到旋转心轴的机构,其具有两部分。 第一部分将卡盘的外圈的向下运动转换成相对于血液碗的向内和向下的压力以固定在卡盘中。 本发明的第二部分将存在于旋转卡盘中的离心力转化为上述颈圈上的向下压力。 在本发明的优选实施例中,卡盘包括基板,柱塞,指环和轴环。 底板接收并定位血液碗。 指环具有位于其上周围的一系列指状物,其围绕活动铰链枢转以与血液碗接触。 套环具有与手指的外表面接触的环形倾斜的手指接触表面并迫使它们向内和向下与血液碗接触。 基板具有一系列向外定向的孔,其保持柱塞。 在卡盘的旋转下,柱塞在离心力作用下在孔中向外移动,并接触轴环内表面上的倾斜柱塞接触表面。 随着离心力的增加,由柱塞的外端施加在柱塞接触表面上的压力增加,导致套环被压力向下移动。 衣领上的向下压力被转换成手指接触表面上的向下压力,该压力又被转换成血液碗上的向内和向下的压力。
    • 8. 发明授权
    • Ambulatory infusion pump assembly and housing therefor
    • 动态输液泵组件及其壳体
    • US07914490B2
    • 2011-03-29
    • US12607495
    • 2009-10-28
    • David W. WrightConstance Ann GordenChristopher Andrews
    • David W. WrightConstance Ann GordenChristopher Andrews
    • A61M1/00
    • A61M5/14248A61M2005/14264A61M2205/7536
    • An ambulatory infusion pump assembly and housing therefore has a cover and a base providing an enclosed cavity. The system includes a liquid pump in fluid communication with a supply source of a liquid drug. The pump and supply source are received in the housing cavity. Further, the system includes a seal providing a liquid tight seal between the cover and the base. A through passage extends from the enclosed cavity external to the housing and an infusion tube extends through the through passage. A fluid tight seal is formed about the infusion tube. A vent is provided in the housing that maintains a balanced pressure state between the enclosed cavity and the atmosphere, while at the same time, the vent prevents the ingress and egress of contaminants into and fluid out of the enclosed cavity.
    • 因此,移动式输液泵组件和壳体具有盖和提供封闭空腔的底座。 该系统包括与液体药物的供应源流体连通的液体泵。 泵和供应源被容纳在壳体腔中。 此外,该系统包括在盖和基座之间提供液密密封的密封件。 通过通道从壳体外部的封闭空腔延伸,并且输注管延伸穿过通道。 围绕输液管形成流体密封。 在壳体中设置有一个通气口,其在封闭空腔和大气之间保持平衡的压力状态,同时,通风孔防止污染物进入和流出封闭空腔。