发明名称 METHOD AND DEVICE FOR DETERMINING THE INTRAOCULAR PRESSURE, BY MEASURING THE CHANGING OF THE FREQUENCY CHARACTERISTICS
摘要 The present invention relates to a method and a device for measuring the pressure p in an eye, the so-called intraocular pressure. The method include s a contact body with a known geometry being pressed against the eye with a gradually increasing contact force F and that when the area of deformation o f the eye A can be determined, the pressure can be obtained from the relation P=F/A, whereby the frequency characteristic of a contact body associated wit h a sensor system oscillating in resonance is read, the contact body is presse d against the eye to form a new system oscillating in resonance, the contact force and frequency characteristic for the new system is read, and the chang e in frequency characteristic is calculated. In this way, the pressure of the eye can be determined since the sought deformation area A is a function of t he change A(fch ar). The device has a contact body (4) for pressing against the eye (1) and a means (3) of determining the force with which the contact body is pressed against the eye, whereby the contact body (4) is part of a system oscillating in resonance, and the resonance system is connected to a means ( 9) for reading the frequency characteristic of the system.
申请公布号 CA2414143(C) 申请公布日期 2007.10.02
申请号 CA20002414143 申请日期 2000.08.24
申请人 BIORESONATOR AB 发明人 EKLUND, ANDERS;LINDAHL, OLOF
分类号 A61B3/16 主分类号 A61B3/16
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