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    RECIPROCATING LOW-SPEED HEAVY-LOAD HYDRAULIC PUMP WITH VARIABLE ACTION AREA
    6.
    发明公开
    RECIPROCATING LOW-SPEED HEAVY-LOAD HYDRAULIC PUMP WITH VARIABLE ACTION AREA 有权
    低速和变幅宽往复重型液压油泵

    公开(公告)号：EP2902628A4

    公开(公告)日：2016-03-23

    申请号：EP12885646

    申请日：2012-09-25

    申请人： SUN WEI

    发明人： SUN WEI

    IPC分类号： F04B49/18 ,  F03G7/08 ,  F04B3/00 ,  F04B5/02 ,  F04B7/00 ,  F04B9/02 ,  F04B23/06 ,  F04B49/22 ,  F04B49/24 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16

    CPC分类号： F04B49/18 ,  F03G7/08 ,  F04B3/00 ,  F04B5/02 ,  F04B7/0076 ,  F04B9/02 ,  F04B23/06 ,  F04B49/22 ,  F04B49/24 ,  F04B49/246 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16

    摘要： A reciprocating low-speed heavy-load hydraulic pump with a variable action area comprises a plurality of hydraulic cylinder units (3) and moving members (1, 2). Two ends of the hydraulic cylinder units (3) are separately connected with the moving members (1, 2) via mechanical structures. The moving members (1, 2) move relative to each other. The hydraulic cylinder unit (3) consists of a hydraulic cylinder (4), a reversing valve (5) and a one-way valve (6). The hydraulic cylinder (4), the reversing valve (5) and the one-way valve (6) are connected with each other via hydraulic pipelines. Based on different magnitudes of driving force, the hydraulic pump can proactively configure and form different combinations of hydraulic cylinder units, and further adjust the size of an equivalent action area. Therefore, even if the magnitude of the driving force changes, it can be ensured that the hydraulic pump consisting of hydraulic cylinder units outputs oil liquid with a relatively stable pressure for use by a subsequently connected system. The reciprocating low-speed heavy-load hydraulic pump with a variable action area is advantageous in high conversion efficiency, a simple system structure and good working stability.

    DOUBLE ACTION INFUSION SYSTEM
    7.
    发明公开
    DOUBLE ACTION INFUSION SYSTEM 审中-公开
    双重作用输液系统

    公开(公告)号：EP2968749A1

    公开(公告)日：2016-01-20

    申请号：EP14779525.6

    申请日：2014-03-04

    申请人： Boston Scientific Limited

    发明人： BONNETTE, Michael, J. ,  MORRIS, David, B.

    IPC分类号： A61M5/142

    CPC分类号： A61M5/1422 ,  A61M5/007 ,  A61M5/14212 ,  A61M5/14216 ,  A61M2005/1403 ,  A61M2206/22 ,  F04B5/02 ,  F04B9/109 ,  F04B9/1095 ,  F04B11/0041

    摘要： An infusion system includes a double action infusion pump. The pump includes a cylinder and a reciprocating piston received within the cylinder, the reciprocating piston separating a first pump chamber from a second pump chamber of the cylinder. A reciprocating motor is coupled with the reciprocating piston, and the first and second pump chambers alternate between filling and evacuating conditions with reciprocation of the reciprocating piston through operation of the reciprocating motor, and the speed of reciprocation is varied to provide a continuous output of fluid between the first and second pump chambers. A fluid source and a catheter are optionally coupled with the double action infusion pump. The catheter includes one or more infusion ports near a catheter distal portion, and the one or more infusion ports receive and expel the continuous output of fluid from the double action infusion pump.

    摘要翻译： 输液系统包括双作用输液泵。 该泵包括气缸和容纳在气缸内的往复式活塞，往复式活塞将第一泵室与气缸的第二泵室分隔开。 往复式马达与往复式活塞联接，并且第一和第二泵室在填充和抽空条件之间交替，通过往复式马达的操作使往复式活塞往复运动，并且往复运动的速度改变以提供流体的连续输出 在第一和第二泵室之间。 流体源和导管可选地与双作用输液泵连接。 导管包括靠近导管远端部分的一个或多个注入端口，并且一个或多个注入端口接收和排出来自双动式输液泵的流体的连续输出。