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    Method of Using One-Way Valve and Related Apparatus
    53.
    发明申请
    Method of Using One-Way Valve and Related Apparatus 有权
    单向阀及相关设备的使用方法

    公开(公告)号：US20080149191A1

    公开(公告)日：2008-06-26

    申请号：US12021115

    申请日：2008-01-28

    申请人： Daniel Py ,  Julian V. Chan ,  Benoit Adamo

    发明人： Daniel Py ,  Julian V. Chan ,  Benoit Adamo

    IPC分类号： F16K31/12

    CPC分类号： B67D1/0004 ,  B65B39/004 ,  B67D1/0007 ,  B67D1/0009 ,  B67D1/0082 ,  B67D1/10 ,  B67D1/108 ,  B67D1/1279 ,  B67D3/04 ,  B67D2001/0827 ,  F04B43/1238 ,  F04B53/1037 ,  Y10T137/7761

    摘要： An apparatus has a valve body defining a first passageway, a valve seat, and a flow aperture extending through the valve body and coupled in fluid communication with the first passageway. A valve cover of the apparatus is formed of an elastic material and includes a cover base mounted on the valve body and fixedly secured against movement relative thereto, and a valve portion overlying the valve seat. The valve portion defines a predetermined radial thickness and forms an interference fit with the valve seat. The valve portion and the valve seat define a normally closed, axially-extending valve opening therebetween. The valve portion is movable between a normally closed position with the valve portion engaging the valve seat, and an open position with at least a segment of the valve portion spaced away from the valve seat to connect the valve opening in fluid communication with the flow aperture to thereby allow the passage of fluid from the flow aperture through the valve opening. A hermetically sealed variable-volume storage chamber stores therein multiple portions of the fluid and is connectable in fluid communication with the one-way valve assembly. A pump is coupled between the variable-volume storage chamber and the one-way valve assembly, and is configured to pump discrete portions of fluid from the variable-volume storage chamber, through the flow aperture, and through the valve opening to dispense the portions of fluid through the valve assembly.

    摘要翻译： 一种装置具有限定第一通道，阀座和延伸穿过阀体并与第一通道流体连通地联接的流动孔的阀体。 该装置的阀盖由弹性材料形成，并且包括安装在阀体上的盖基座，并且固定地抵靠其相对移动，以及覆盖在阀座上的阀部分。 阀部分限定预定的径向厚度并与阀座形成过盈配合。 阀部分和阀座限定了其间的常闭的，轴向延伸的阀开口。 阀部分可以在与阀座接合的阀部分的常闭位置和打开位置之间移动，打开位置具有与阀座间隔开的阀部分的至少一段，以连接与开口流体连通的阀开口 从而允许流体从流动孔通过阀开口。 气密密封的可变容积储存室在其中存储有多个流体部分，并可与单向阀组件流体连通。 泵连接在可变容积存储室和单向阀组件之间，并且构造成从可变容积储存室通过流动孔泵送离散的流体部分，并且通过阀开口分配部分 的流体通过阀组件。

    Ophthalmic dispenser and associated method
    54.
    发明授权
    Ophthalmic dispenser and associated method 有权
    眼科分配器及相关方法

    公开(公告)号：US07331944B2

    公开(公告)日：2008-02-19

    申请号：US10691270

    申请日：2003-10-21

    申请人： Daniel Py ,  Norbert M. Assion ,  Julian V. Chan ,  Joseph M. Ting

    发明人： Daniel Py ,  Norbert M. Assion ,  Julian V. Chan ,  Joseph M. Ting

    IPC分类号： A61M35/00 ,  B67D5/064

    CPC分类号： A61F9/0008 ,  B05B11/00412 ,  B05B11/0054 ,  B05B11/0072 ,  B05B11/0097 ,  B05B11/3092 ,  B05B11/3094 ,  B65B3/003 ,  B65D81/245 ,  Y10T29/49826

    摘要： An ophthalmic dispenser has a rigid housing defining a fluid-receiving chamber, a flexible bladder receivable within the fluid-receiving chamber, a pump coupled in fluid communication with the fluid-receiving chamber, and a nozzle having a valve defining an annular, axially-extending valve seat, an outlet aperture coupled in fluid communication between the valve seat and the pump, and a flexible valve cover extending about the valve seat and forming an annular, axially-extending interface therebetween. The valve interface is connectable in fluid communication with the outlet aperture, and at least part of the valve cover is movable between (i) a normally closed position with the valve cover engaging the valve seat to close the interface and form a fluid-tight seal therebetween, and (ii) an open position with at least part of the valve cover spaced away from the valve seat in response to pumped fluid flowing through the outlet aperture at a pressure greater than a valve opening pressure to allow the passage of pressurized fluid therebetween. A spring is drivingly connected to the housing and moves at least one of the pump and housing relative to the other to actuate the pump. The rigid housing is mountable within a cartridge which, in turn, is mountable within a dispenser housing including an eyelid depressor and a trigger for simultaneously actuating the eyelid depressor and pump.

    摘要翻译： 眼科分配器具有限定流体接收室的刚性壳体，可接收在流体接收室内的柔性气囊，与流体接收室流体连通的泵，以及具有限定环形轴向 - 延伸阀座，联接在阀座和泵之间流体连通的出口孔以及围绕阀座延伸并在其间形成环形的轴向延伸的接口的柔性阀盖。 阀门接口可与出口孔流体连通，并且阀盖的至少一部分可在（i）常闭位置与阀盖接合阀座之间移动以关闭接口并形成流体密封 ，并且（ii）打开位置，其中阀盖的至少一部分响应于在大于阀打开压力的压力下流过出口孔的泵送流体而与阀座间隔开，以允许加压流体在其间通过 。 弹簧驱动地连接到壳体并且相对于另一个移动泵和壳体中的至少一个以致动泵。 刚性壳体可安装在盒中，其又可安装在分配器壳体内，该分配器壳体包括用于同时致动眼睑下压器和泵的眼睑下压器和触发器。