Apparatus to measure conical thickness

专利名称：Apparatus to measure conical thickness发明人：Frederic B. Kremer,Edward R. O'Brien, III申请号：US06/607603申请日：19840507公开号：US04546773A公开日：19851015

摘要：An apparatus is disclosed for measuring the thickness of the cornea and forregulating the depth of a surgical blade in relation to the local corneal thickness. Cornealthickness is measured by first directing ultrasonic pulses towards the cornea and timingthe interval between reflected pulses. The apparatus also includes a pulse stretcher forenlarging the width of the pulse representing the interval between pulses reflected fromthe inner and the outer surfaces of the cornea, so that the time between pulses can beaccurately measured by a conventional, low- frequency electronic clock. The inventionfurther comprises electronic gating means for rejecting spurious pulses.

申请人：ACCUTOME, INC.

代理机构：Steele, Gould & Fried

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