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    • 3. 发明申请
    • TESTING APPARATUS
    • 测试装置
    • WO1988003384A1
    • 1988-05-19
    • PCT/GB1987000777
    • 1987-11-04
    • KEELER LIMITEDMATTHEWS, James, Robert, ArnoldLITTLE, Mervyn, AubreyFISHER, John
    • KEELER LIMITED
    • A61B03/16
    • A61B3/165
    • A tonometer for measuring the intra-ocular pressure of an eye in which a pulse of fluid is projected towards the cornea of the eye to distort the corneal surface by the pressure of the pulse, thedistortion in the corneal surface being detected by a change in the reflection of light directed onto the cornea. A constant volume chamber (96) forms part of the fluid delivery system, with inlet means (71) by which fluid under pressure can be supplied to the chamber when a fluid pulse is required. A lens assembly (110, 112) is fixed in the chamber wall for directing light toward an eye under test, and a tube (108) extends coaxially through the lens assembly to protrude internally into the chamber, where it is closed-off at (114) but includes a plurality of apertures (118) in the internally protruding wall section to permit the controlled passage of fluid from the chamber into the tube.
    • 一种用于测量眼睛的眼内压的眼压计,其中流体的脉冲朝向眼睛的角膜投射以通过脉冲的压力使角膜表面变形,角膜表面中的失真通过 将光反射到角膜上。 恒定容积室(96)形成流体输送系统的一部分,具有入口装置(71),当需要流体脉冲时,通过该入口装置(71)可以将压力下的流体供应到腔室。 透镜组件(110,112)固定在室壁中,用于将光引导到被测试的眼睛,并且管(108)同轴地延伸穿过透镜组件以在内部突出到腔室中,其中它在( 114),但是在内部突出的壁部分中包括多个孔(118),以允许流体从腔室受控地通过到管中。