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    • 2. 发明授权
    • Tonometer utilizing hydraulic pressure
    • 压力表采用液压
    • US5735275A
    • 1998-04-07
    • US661794
    • 1996-06-13
    • Jon BallouFrancis J. PorterAugust O. Westner
    • Jon BallouFrancis J. PorterAugust O. Westner
    • A61B3/16
    • A61B3/16
    • A tonometer for measuring intraocular pressure of an eye is described. The tonometer includes an eyepiece having a conduit extending through an outer surface. The outer surface is concave shaped to conform to an eyeball. The tonometer also includes a plunger extending through the conduit having a head at a first end and having a probe at a second end which extends beyond the outer surface of the eyepiece so as to contact the eyeball when the eyepiece is positioned to conform to the eyeball. The tonometer also includes a fluid reservoir having a top and a bottom. The bottom of the reservoir is sealed by a membrane that is in juxtaposition with the head of the plunger. In addition, the tonometer includes an indicator positioned in the fluid reservoir for measuring a level of fluid in the reservoir. The level of fluid in the reservoir is proportional to an intraocular pressure of the eyeball when the eyepiece is positioned to conform to the eyeball.
    • 描述了用于测量眼睛眼内压的眼压计。 眼压计包括具有延伸穿过外表面的导管的目镜。 外表面是凹形的以符合眼球。 眼压计还包括延伸穿过导管的柱塞,其具有在第一端处的头部,并且在第二端处具有延伸超过目镜的外表面的探针,以便当目镜被定位成符合眼球时接触眼球 。 眼压计还包括具有顶部和底部的流体储存器。 储存器的底部由与柱塞头部并置的膜密封。 此外,眼压计包括位于流体储存器中的用于测量储存器中的液体水平的指示器。 当目镜定位成符合眼球时,储存器中的液体水平与眼球的眼内压成正比。