Magnet-based systems and methods for transferring fluid

    公开(公告)号:US10697447B2

    公开(公告)日:2020-06-30

    申请号:US14464753

    申请日:2014-08-21

    Applicant: Fenwal, Inc.

    Abstract: A system is provided for pumping fluid, with the system including a fluid pump and a cassette. The pump includes a motor and a piston that is movable toward and away from a flexible diaphragm of the cassette. A linkage connects the motor and the piston to move the piston toward and away from the diaphragm. At least a portion of the piston or the diaphragm is magnetized, with the other having at least a portion that is magnetized or formed of a ferromagnetic material, thereby magnetically coupling the piston and the diaphragm such that movement of the piston moves the diaphragm into and out of a cassette cavity aligned with the diaphragm and piston. Movement of the diaphragm into and out of the cavity changes the effective volume of the cavity, which has the effect of drawing fluid into or forcing fluid out of the cavity.

    Magnet-Based Systems And Methods For Transferring Fluid
    7.
    发明申请
    Magnet-Based Systems And Methods For Transferring Fluid 审中-公开
    基于磁体的系统和传输流体的方法

    公开(公告)号:US20160051740A1

    公开(公告)日:2016-02-25

    申请号:US14464753

    申请日:2014-08-21

    Applicant: Fenwal, Inc.

    Abstract: A system is provided for pumping fluid, with the system including a fluid pump and a cassette. The pump includes a motor and a piston that is movable toward and away from a flexible diaphragm of the cassette. A linkage connects the motor and the piston to move the piston toward and away from the diaphragm. At least a portion of the piston or the diaphragm is magnetized, with the other having at least a portion that is magnetized or formed of a ferromagnetic material, thereby magnetically coupling the piston and the diaphragm such that movement of the piston moves the diaphragm into and out of a cassette cavity aligned with the diaphragm and piston. Movement of the diaphragm into and out of the cavity changes the effective volume of the cavity, which has the effect of drawing fluid into or forcing fluid out of the cavity.

    Abstract translation: 提供了一种用于泵送流体的系统,其中系统包括流体泵和盒。 该泵包括电动机和能够朝向和远离盒的柔性隔膜移动的活塞。 联动装置连接电动机和活塞,以将活塞朝向和远离隔膜移动。 活塞或隔膜的至少一部分被磁化,另一个具有至少一部分被磁化或由铁磁材料形成的部分,从而磁性地联接活塞和隔膜,使得活塞的移动将隔膜移动到 离开与隔膜和活塞对准的盒式空腔。 隔膜进入和离开空腔的运动改变空腔的有效体积,其具有将流体引入或迫使流体流出空腔的作用。

Patent Agency Ranking