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1. 发明授权

US06042544A Non-contact type tonometer 有权
标题翻译：非接触式眼压计
公开(公告)号：US06042544A
公开(公告)日：2000-03-28
申请号：US335794
申请日：1999-06-18
申请人： Tetsuyuki Miwa , Munehiro Nakao
发明人： Tetsuyuki Miwa , Munehiro Nakao
IPC分类号： A61B3/16 , A61B3/016
CPC分类号： A61B3/165
摘要： A non-contact type tonometer is disclosed, wherein a fluid blowing device blows a compressed air against a cornea of an examinee's eye, a deformation detection device detects a corneal deformed state caused by the fluid, a pressure detection device detects the fluid pressure to be blown by the fluid blowing device, a memory samples data on time-varying pressure detected by the pressure detection device at predetermined time intervals and stores them, and a calculation device takes a predetermined amount of pressure data from those stored in the memory, the pressure data being within a predetermined duration determined relative to the reference time at which a predetermined deformation of the cornea is detected by the deformation detection device. Then, the calculation device calculates an intraocular pressure of the examinee's eye based on the taken pressure data.
摘要翻译：公开了一种非接触型眼压计，其中，流体吹送装置将压缩空气吹向被检眼的角膜，变形检测装置检测由流体引起的角膜变形状态，压力检测装置将流体压力检测为存储器以预定的时间间隔对由压力检测装置检测到的随时间变化的压力的数据进行存储，并存储它们，并且计算装置从存储在存储器中的压力数据中取出预定量的压力数据，数据处于相对于通过变形检测装置检测到角膜的预定变形的参考时间确定的预定持续时间内。然后，计算装置基于取得的压力数据计算被检眼的眼内压。

2. 发明授权

US5671737A Self-operable tonometer for measuring intraocular pressure of a patient's eye 失效
标题翻译：用于测量患者眼睛眼压的自行眼压计
公开(公告)号：US5671737A
公开(公告)日：1997-09-30
申请号：US569666
申请日：1995-12-08
申请人： Ferenc I. Harosi
发明人： Ferenc I. Harosi
IPC分类号： A61B3/16 , A61B3/016
CPC分类号： A61B3/16
摘要： A tonometer for measuring intraocular pressure (IOP) allows a user to self-operably apply a removable, lightweight, ocular probe to gently flatten an area of the corneal surface. A transducer having a flexible springboard connected to the probe and serving as a plate of a variable capacitor is used to sense forces produced when the probe contacts the eye elastically deforming the springboard. The applanation area is detected with a video camera connected to a central processing unit (CPU) programmed to perform image analysis. The CPU uses multiple force and multiple area values determined in rapid succession so that force and applanation area data are closely related in time. Linear regression analysis is used on data pairs to determine an average value for IOP in only about 1-2 seconds. The probe has a clear window with markings for delimiting a calibration area. The slight passive movements of the probe in this process are frictionless and cause no error in force determination. The IOP determination is independent of gravity and thus may be carried out in any orientation as well as under the condition of weightlessness.
摘要翻译：用于测量眼内压（IOP）的眼压计允许使用者自行操作地应用可移除的，轻量的眼睛探针以使角膜表面的一个区域轻轻平坦化。具有连接到探头并用作可变电容器的板的柔性跳板的换能器用于感测当探针接触眼睛弹性变形跳板时产生的力。用连接到中央处理单元（CPU）的视频摄像机检测压平区域，中央处理单元（CPU）被编程为执行图像分析。 CPU使用快速连续确定的多个力和多个面积值，使力和压平面数据在时间上紧密相关。在数据对上使用线性回归分析，仅在约1-2秒内确定IOP的平均值。探头具有清晰的窗口，带有用于界定校准区域的标记。探头在此过程中轻微的被动移动是无摩擦的，并且不会导致力测定误差。 IOP测定与重力无关，因此可以在任何方向以及失重的条件下进行。

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