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    • 2. 发明授权
    • Eyeball tissue characteristic frequency measurement device and non-contact tonometer utilizing the same
    • 眼球组织特征频率测量装置和非接触式眼压计利用它
    • US08545404B2
    • 2013-10-01
    • US12992646
    • 2009-05-14
    • Kotaro IshiiToshihiro Kameda
    • Kotaro IshiiToshihiro Kameda
    • A61B5/00
    • A61B3/165A61B3/16
    • A non-contact tonometer of the present invention quantitatively measures characteristic vibration of the cornea of an eyeball and measures a true ocular pressure utilizing this vibration, and comprises: an air flow spray unit (200) spraying an air flow (F) to a cornea (C) of an eye (E) to be examined and deforming the cornea; a cornea deformation amount measurement unit (300) measuring deformation of the cornea caused by the air flow spray unit along with elapsed time from the start of the air flow spray; a Fourier analysis unit (401) performing Fourier analysis on a relationship between a deformation amount of the cornea obtained by a cornea deformation detection unit and the elapsed time; an eyeball tissue characteristic frequency operation unit (402) obtaining an characteristic frequency of each constituent tissue of the eyeball based on a Fourier analysis result obtained by the Fourier analysis unit; and an ocular pressure operation unit (403) calculating an ocular pressure based on the characteristic frequency of the cornea obtained by the eyeball tissue characteristic frequency operation unit.
    • 本发明的非接触式眼压计定量地测量眼球的角膜的特征振动并利用该振动测量真实的眼压,并且包括:空气流喷射单元(200),将空气流(F)喷射到角膜 (C)眼睛(E)进行检查和变形角膜; 角膜变形量测量单元(300),测量由气流喷射单元引起的角膜的变形以及从开始气流喷射开始的经过时间; 对由角膜变形检测部获得的角膜的变形量与经过时间的关系进行傅里叶分析的傅立叶分析部(401) 眼球组织特征频率运算单元,根据由傅立叶分析单元得到的傅立叶分析结果获得眼球的各组成组织的特征频率; 以及根据眼球组织特征频率运算部获得的角膜的特征频率计算眼压的眼压操作部(403)。
    • 3. 发明申请
    • EYEBALL TISSUE CHARACTERISTIC FREQUENCY MEASUREMENT DEVICE AND NON-CONTACT TONOMETER UTILIZING THE SAME
    • 眼睛组织特征频率测量装置和非接触式测量仪
    • US20110118585A1
    • 2011-05-19
    • US12992646
    • 2009-05-14
    • Kotaro IshiiToshihiro Kameda
    • Kotaro IshiiToshihiro Kameda
    • A61B3/16
    • A61B3/165A61B3/16
    • A non-contact tonometer of the present invention quantitatively measures characteristic vibration of the cornea of an eyeball and measures a true ocular pressure utilizing this vibration, and comprises: an air flow spray unit (200) spraying an air flow (F) to a cornea (C) of an eye (E) to be examined and deforming the cornea; a cornea deformation amount measurement unit (300) measuring deformation of the cornea caused by the air flow spray unit along with elapsed time from the start of the air flow spray; a Fourier analysis unit (401) performing Fourier analysis on a relationship between a deformation amount of the cornea obtained by a cornea deformation detection unit and the elapsed time; an eyeball tissue characteristic frequency operation unit (402) obtaining an characteristic frequency of each constituent tissue of the eyeball based on a Fourier analysis result obtained by the Fourier analysis unit; and an ocular pressure operation unit (403) calculating an ocular pressure based on the characteristic frequency of the cornea obtained by the eyeball tissue characteristic frequency operation unit.
    • 本发明的非接触式眼压计定量地测量眼球的角膜的特征振动并利用该振动测量真实的眼压,并且包括:空气流喷射单元(200),将空气流(F)喷射到角膜 (C)眼睛(E)进行检查和变形角膜; 角膜变形量测量单元(300),测量由气流喷射单元引起的角膜的变形以及从开始气流喷射开始的经过时间; 对由角膜变形检测部获得的角膜的变形量与经过时间的关系进行傅里叶分析的傅立叶分析部(401) 眼球组织特征频率运算单元,根据由傅立叶分析单元得到的傅立叶分析结果获得眼球的各组成组织的特征频率; 以及根据眼球组织特征频率运算部获得的角膜的特征频率计算眼压的眼压操作部(403)。