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    • 75. 发明授权
    • Contractile actuated bellows pump
    • 收缩式致动波纹管泵
    • US6059546A
    • 2000-05-09
    • US237465
    • 1999-01-26
    • Colin J. H. BrenanSerge R. LafontaineIan W. Hunter
    • Colin J. H. BrenanSerge R. LafontaineIan W. Hunter
    • F03G7/06F04B43/04F04B43/06
    • F04B43/046F03G7/065F05C2251/08
    • A pump for impelling a fluid includes a first variable volume, the first variable volume having a first inlet for allowing the influx of the fluid into the first variable volume and a first outlet for allowing the efflux of the fluid out of the first variable volume and a first membrane defining at least a portion of the first variable volume. The pump also includes a first contractile actuator, for displacing the first membrane from a first position to a second position in such a manner as to vary the first variable volume and a second contractile actuator, for restoring the first membrane from the second position to the first position in such a manner as to vary the first variable volume. A first check valve is coupled to the first inlet for regulating the influx of fluid into the first variable volume through the first inlet and a second check valve is coupled to the first outlet for regulating the efflux of the fluid out of the first variable volume through the first outlet. In a preferred embodiment, at least one of the first and second contractile actuators is a linear actuator.
    • 用于推动流体的泵包括第一可变容积,第一可变容积具有用于允许流体流入第一可变容积的第一入口和用于允许流体从第一可变容积流出的第一出口,以及 限定所述第一可变体积的至少一部分的第一膜。 泵还包括第一收缩致动器,用于将第一膜从第一位置移动到第二位置,以便改变第一可变容积和第二收缩致动器,用于将第一膜从第二位置恢复到第二位置 第一位置以改变第一可变容积的方式。 第一止回阀联接到第一入口,用于通过第一入口调节流体流入第一可变容积,并且第二止回阀联接到第一出口,用于调节流体流出第一可变容积的流出 第一个出口。 在优选实施例中,第一和第二收缩致动器中的至少一个是线性致动器。
    • 77. 发明授权
    • Plaque removal and differentiation of tooth and gum
    • 牙齿和牙龈的牙齿去除和分化
    • US09333060B2
    • 2016-05-10
    • US12969111
    • 2010-12-15
    • Ian W. Hunter
    • Ian W. Hunter
    • A61C17/02A61C19/06
    • A61C17/02A61C19/063
    • A method of tooth treatment includes sensing a surface condition of tooth or gum and controlling ejection of a fluid jet against the tooth based on the sensed condition. The fluid may be a liquid and may be carried in a self-contained reservoir in a handle of a fluid ejection device. The liquid can be a cleansing solution and may contain cleaning particles. The ejection can be controlled to clean teeth at high pressure and to reduce pressure applied to gum, for example, to clean plaque. In some embodiments, the method may be used to remove soft tooth. The method may further include automatically scanning the fluid jet relative to a handle of an injection device. In an embodiment, the fluid is ejected by means of a fluid ejector comprising a stationary magnet assembly providing a magnetic field and a coil assembly, slidably disposed with respect to the magnet assembly, the coil assembly driving ejection of the fluid jet. Sensing the surface condition can include measuring a response of tissue to a mechanical perturbation and may include sensing an acoustic signal reflected from tissue. The mechanical perturbation can include applied force and the measured response can include deformation of the tissue. The method may further include mechanically disturbing the tissue with the fluid jet. A tooth treatment device includes a fluid ejector that ejects fluid against teeth and a servo controller controlling pressure of ejected fluid in response to a sensed surface condition. The fluid jet can have a diameter of less than 500 microns, a peak relative pressure of at least 1 kilopascal and velocity of at least 1 meter per second.
    • 牙齿治疗的方法包括感测牙齿或牙龈的表面状况,并根据检测到的状况控制针对牙齿的流体射流的喷射。 流体可以是液体,并且可以在流体喷射装置的手柄中的独立储存器中携带。 液体可以是清洁溶液并且可以含有清洁颗粒。 可以控制喷射以在高压下清洁牙齿并减少施加到牙龈上的压力,例如清洁斑块。 在一些实施例中,该方法可用于去除软齿。 该方法还可以包括相对于注射装置的手柄自动扫描流体射流。 在一个实施例中,通过包括提供磁场的固定磁体组件和相对于磁体组件可滑动地设置的线圈组件的流体喷射器喷射流体,线圈组件驱动喷射流体射流。 感测表面状况可以包括测量组织对机械扰动的响应,并且可以包括感测从组织反射的声信号。 机械扰动可以包括施加的力,并且测量的响应可以包括组织的变形。 该方法还可以包括用流体射流机械地干扰组织。 牙齿治疗装置包括喷射流体抵抗牙齿的流体喷射器和响应于检测到的表面状况控制喷射流体的压力的伺服控制器。 流体射流可以具有小于500微米的直径,至少1千帕斯卡的峰值相对压力和至少1米/秒的速度。