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    • 2. 发明申请
    • Delivery device and method of delivery
    • 送货装置和送货方式
    • US20050165368A1
    • 2005-07-28
    • US10990164
    • 2004-11-15
    • Daniel PyJulian ChanJeffrey Atwood
    • Daniel PyJulian ChanJeffrey Atwood
    • A61F20060101A61F9/00A61M35/00
    • B05B11/007A61F9/0008A61M11/007A61M15/08A61M35/003A61M2210/0612B05B11/00412B05B11/00416B05B11/0056B05B11/0072B05B11/3004B05B11/3056B05B11/307B05B11/3074B05B11/3077
    • An ophthalmic delivery device includes a body defining a fluid reservoir and a pump in fluid communication with the reservoir. The delivery device also includes a nozzle that includes a dosage chamber for holding a dosage of fluid, a valve seat, and a valve cover. The valve cover extends about the valve seat and forms an interface therebetween and the valve seat includes an outlet aperture. The interface is in fluid communication with the outlet aperture and the dosage chamber, and at least part of the valve cover is movable between (i) a 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 fluid flowing through the outlet aperture at a pressure greater than a valve opening pressure to allow the passage of pressurized fluid therebetween. The valve seat and the valve cover are dimensioned to dispense the dosage of fluid through the interface at a velocity of equal to or less than 6 meters per second.
    • 眼科输送装置包括限定流体储存器的主体和与储存器流体连通的泵。 输送装置还包括喷嘴,该喷嘴包括用于保持一定量的流体的剂量室,阀座和阀盖。 阀盖围绕阀座延伸并且在它们之间形成界面,并且阀座包括出口孔。 所述界面与所述出口孔和所述剂量室流体连通,并且所述阀盖的至少一部分可在(i)与所述阀盖接合所述阀座的关闭位置之间移动以关闭所述界面并形成流体密封 密封在其间,和(ii)打开位置,其中阀盖的至少一部分响应于流体以大于阀打开压力的压力流过出口孔而与阀座间隔开,以允许加压流体在其间通过 。 阀座和阀盖的尺寸设计为以等于或小于6米/秒的速度通过界面分配流体的剂量。