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公开(公告)号：EP3305187A1
公开(公告)日：2018-04-11
申请号：EP16799067.0
申请日：2016-03-07
发明人： GUO, Shuguang , WAN, Mingming , LI, Peng , DAI, Xiangsong , ZHANG, Dexing
IPC分类号： A61B5/0265 , A61B5/0285
CPC分类号： A61B3/1241 , A61B3/102 , A61B3/12 , A61B3/14 , A61B5/0066 , A61B5/0261 , A61B5/7207 , G01B9/0201 , G01B9/0203 , G01B9/02044 , G01B9/02076 , G01B9/02091 , G01N21/4795
摘要： An apparatus and a method for measuring blood flow of vessels are provided by the disclosure, which include the following. A light source, a light splitting module, a reference arm module, a sample arm module, a probing module, and a control system are arranged in an optical path; the sample arm module includes a scanning unit and a rotatable optical-path shifting device; a probe light is obtained from the light splitting module after splitting, and a main light of the probe light is on a rotating shaft of the scanning unit; the probe light is reflected by the scanning unit for scanning to the optical-path shifting device, and when the optical-path shifting device is in a first position and in a second position respectively, the probe light scans a vessel in fundus to obtain a first phase shift signal and a second phase shift signal of the vessel measured; finally, blood flow rate and blood flow of a single-vessel and total blood flow of all the vessels near an optic disc are determined according to formulas. The apparatus and the method of the disclosure avoid high-frequency background Doppler appearing in an original Doppler image of the vessel acquired so that extra work and error caused by removing high-frequency background Doppler can be omitted.
摘要翻译： 本公开提供了一种测量血管血流量的装置和方法，包括： 在光路中设置有光源，分光模块，参考臂模块，试样臂模块，探测模块和控制系统， 样品臂模块包括扫描单元和可旋转的光路切换装置; 在分光后从分光模块获取探测光，探测光的主光在扫描单元的旋转轴上; 探测光被扫描单元反射以扫描至光路切换装置，并且当光路切换装置分别处于第一位置和第二位置时，探测光扫描眼底血管以获得 测量船舶的第一相移信号和第二相移信号; 最后，根据公式确定视盘附近的所有血管的单血管和总血流的血流速度和血流量。 本发明的装置和方法避免了高频背景多普勒出现在获取的血管的原始多普勒图像中，从而可以省略去除高频背景多普勒导致的额外工作和误差。
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公开(公告)号：EP3369365A1
公开(公告)日：2018-09-05
申请号：EP16880319.5
申请日：2016-03-07
发明人： GUO, Shuguang , WAN, Mingming , WU, Lei , HE, Weihong
IPC分类号： A61B3/103
CPC分类号： G06T7/0012 , A61B3/103 , A61B3/12 , G06T7/70 , G06T2207/30041
摘要： A binocular refractometer is provided. The binocular refractometer includes a light source, a converging lens group, a light splitting apparatus, and an optical element adjusting apparatus. The light splitting apparatus splits measuring light into two beams of light, wherein a first beam of light of the two beams of light passes through a first fundus oculi imaging light path and forms, on a first imaging unit, a first dot pattern responsive to light reflected from the fundus oculi of a first human eye, and a second beam of light of the two beams of light passes through a second fundus oculi imaging light path and forms, on a second imaging unit, a second dot pattern responsive to light reflected from the fundus oculi of a second human eye. The optical element adjusting apparatus is configured to adjust the first and second fundus oculi imaging light paths along the direction of the pupillary distance. The optical element adjusting apparatus is configured to adjust the light source along the direction of the optical axis of the measuring light to fog the first human eye and the second human eye, so that for subjects with different diopters, the first dot pattern responsive to the fundus oculi of the first human eye is clearly formed on the first imaging unit and the second dot pattern responsive to the fundus oculi of the second human eye is clearly formed on the second imaging unit. The light source is conjugated to the fundus oculi of the first human eye predetermined by the converging lens group. The light source is conjugated to the fundus oculi of the second human eye predetermined by the converging lens group. The binocular refractometer can measure binocular diopters and the pupillary distance, and can accurately determine binocular astigmatism and binocular astigmatic axis angle.
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