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    • 1. 发明授权
    • Ultrasonic scanning of the eye using a stationary transducer
    • 使用固定式传感器对眼睛进行超声波扫描
    • US5776068A
    • 1998-07-07
    • US879292
    • 1997-06-19
    • Ronald H. SilvermanDonald Jackson ColemanDan Z. ReinsteinGeorge SimoniDavid Najafi
    • Ronald H. SilvermanDonald Jackson ColemanDan Z. ReinsteinGeorge SimoniDavid Najafi
    • A61B8/10A61B8/00
    • A61B8/10
    • Apparatus is provided for high frequency ultrasound examination of the anterior segment of a patient's eyes. A liquid bath is established about a first eye of the patient to be examined. A fixed ultrasound transducer is placed in contact with the liquid bath and directs the beam of ultrasound energy to the first eye and receives echoes of the ultrasound energy. A fixation source is juxtaposed to the second eye of the patient and displays a fixation target. A controller operates the fixation source to move the fixation target relative to the second eye, while the patient moves the second eye so as to remain focused on the fixation target. The movement of the second eye causes the first eye to move concurrently and enables relative movement between the beam of ultrasound energy and anterior segments of the first eye, while maintaining near orthogonality between the ultrasound beam and the surface of the eye. By tracking the position of the second eye, the position of the first eye, and hence of each pulse/echo sequence, is ascertained, enabling image construction and biometric determinations of the anterior segment anatomy to be performed.
    • 提供用于患者眼睛前段高频超声检查的装置。 建立关于要检查的患者的第一只眼睛的液体浴。 将固定的超声换能器放置成与液浴接触,并将超声能量束引导到第一只眼睛并接收超声能量的回波。 固定源与患者的第二只眼并列并显示固定目标。 控制器操作固定源以相对于第二只眼睛移动固定目标,同时患者移动第二只眼睛以保持聚焦在固定目标上。 第二只眼睛的运动使得第一只眼睛同时移动,并且能够使超声能量束和第一只眼睛的前段之间的相对移动同时保持超声波束和眼睛表面之间的近似正交性。 通过跟踪第二只眼睛的位置,确定第一只眼睛的位置,从而确定每个脉搏/回波序列的位置,从而能够进行前段解剖结构的图像构造和生物测定。
    • 3. 发明授权
    • System and method for producing and maintaining parallel and vertical
fixation of visual axis
    • 用于生产和维护视轴平行和垂直固定的系统和方法
    • US5369454A
    • 1994-11-29
    • US146214
    • 1993-11-01
    • Dan Z. ReinsteinRonald H. SilvermanDonald J. Coleman
    • Dan Z. ReinsteinRonald H. SilvermanDonald J. Coleman
    • A61B3/15A61B8/10A61B3/02
    • A61B8/10A61B3/152
    • An apparatus for assuring vertical alignment of visual axes of a patient's eyes includes an eye cup that enables establishment of a liquid bath in which a surface of a cornea of a supine patient's first eye is completely submerged. A first light source is positioned above the liquid bath and directs a beam of alignment light to the submerged eye. A second light source is positioned above the patient's second eye and directs a beam of adjustment light to its corneal surface. Apparatus is provided that enables relative movement between the first and second light sources so as to enable the light sources to be moved into a position where the patient indicates a fusion of the light sources into a single spot, at which point it is known that the visual axis are vertical and aligned. The liquid bath assures that the beam of alignment light from the first light source is only in focus at the patient's eye when the first light source is directly coincident with the vertical axis of the first eye. Any deviation from that vertical axis results in blurring of the image due to refractive effects within the liquid bath.
    • 用于确保患者眼睛的视线的垂直对准的装置包括能够建立其中仰卧患者的第一只眼睛的角膜的表面被完全浸没的液体浴的眼杯。 第一光源位于液槽上方,并将一束对准光引导到淹没的眼睛。 第二个光源位于患者的第二只眼睛上方,并将一束调节光引导到其角膜表面。 提供了能够实现第一和第二光源之间的相对移动的设备,以便使光源能够移动到患者将光源融合成单个位置的位置,此时已知 视轴垂直并对齐。 当第一光源与第一眼睛的垂直轴线直接一致时,液体浴确保来自第一光源的对准光束仅在患者眼睛处聚焦。 与该垂直轴的任何偏离导致由于液槽内的折射效应造成的图像模糊。
    • 4. 发明授权
    • System for ultrasonically determining corneal layer thicknesses and shape
    • 用于超声波测定角膜层厚度和形状的系统
    • US5293871A
    • 1994-03-15
    • US89781
    • 1993-07-09
    • Dan Z. ReinsteinRonald H. SilvermanDonald J. ColemanFrederic L. Lizzi
    • Dan Z. ReinsteinRonald H. SilvermanDonald J. ColemanFrederic L. Lizzi
    • A61B8/10A61B18/12G01S7/52G01S15/89
    • A61B18/1206A61B8/10G01S15/8938G01S7/52028A61B2018/00875
    • An ultrasound system that enables determination of layer thicknesses and contours of a multi-layer organic body includes a transmitter/receiver for obtaining a radio frequency signal from echoes over a plurality of points on the organic surface. Each radio frequency signal is then deconvolved to remove apparatus generated noise and filtered to create an analytic signal that exhibits a magnitude related to an instantaneous rate of arrival of total echo energy received by the transmitter/receiver. Analytic signals from adjacent parallel scans are then cross-correlated and magnitude detected to determine energy peaks to enable accurate determination of echo producing surfaces of each layer of the multi-layer organic body across the plurality of interrogation points. In the application of the invention to Corneal Epithelium Mapping, a pupil monitoring system is included that disables the measurement system if the pupil's gaze wanders so as to cause a diversion of the optical axis.
    • 能够确定多层有机物体的层厚度和轮廓的超声系统包括用于从有机表面上的多个点上的回波获得射频信号的发射器/接收器。 然后对每个射频信号进行去卷积以去除设备产生的噪声并进行滤波以产生表现出与由发射机/接收机接收的总回波能量的瞬时到达速率相关的幅度的分析信号。 然后对来自相邻并行扫描的分析信号进行交叉相关并且检测幅度以确定能量峰值,以便能够准确地确定多层有机物体在多个询问点上的各层的回波产生表面。 在本发明应用于角膜上皮测绘中,包括一个瞳孔监测系统,如果瞳孔的视线漫游,导致测量系统导致光轴的转移,则该测量系统将被禁用。
    • 8. 发明授权
    • Method of performing refractive laser eye surgery centered along the visual axis of a human eye
    • 以人眼的视轴为中心进行折射激光眼部手术的方法
    • US08444632B2
    • 2013-05-21
    • US12612898
    • 2009-11-05
    • Dan Z. ReinsteinHartmut VogelsangDaniel Neal
    • Dan Z. ReinsteinHartmut VogelsangDaniel Neal
    • A61B18/18A61B3/10
    • A61F9/00806A61F9/00827A61F2009/00846A61F2009/00872A61F2009/0088A61F2009/00882
    • A method of performing refractive laser eye surgery on a human eye is provided wherein the ablation pattern is centered along the visual axis, rather than along the line of sight. First, a wavefront, either ocular, corneal or a combination thereof, is generated by a wavefront sensor centered along the line of sight. This measured wavefront is centered on and encompasses a patient's pupil. Then, an analysis pupil is determined which encompasses the measured pupil. The analysis pupil is centered along the visual axis at the point of intersection with the cornea. Consequently, the measured wavefront is reconstructed over the analysis pupil only using data taken over the area covered by the measured pupil. This reconstruction is done through a least squares fit of a series of slopes from the measured wavefront and/or through the transformation of aberration coefficients. Finally, an ablation pattern, or a lenticule generation pattern, to be performed by a refractive laser centered on the corneal intersect of the visual axis is produced in accordance with the reconstructed wavefront.
    • 提供了一种在人眼上执行折射激光眼外科手术的方法,其中消融图案沿视轴居中,而不是沿着视线。 首先,通过以视线为中心的波前传感器产生波前,眼睛,角膜或其组合。 这个测量的波前是以患者的瞳孔为中心并且包含患者的瞳孔。 然后,确定包含测量瞳孔的分析瞳孔。 分析瞳孔在与角膜交点处沿视轴居中。 因此,仅使用在测量瞳孔覆盖的区域上拍摄的数据,通过分析瞳孔重建测量的波前。 通过从测量的波前和/或通过像差系数的变换的一系列斜率的最小二乘拟合来完成该重建。 最后,根据重建的波前产生由以视轴的角膜相交为中心的折射激光进行的消融图案或微透镜生成图案。
    • 10. 发明申请
    • METHOD OF PERFORMING REFRACTIVE LASER EYE SURGERY CENTERED ALONG THE VISUAL AXIS OF A HUMAN EYE
    • 在人眼可见轴上进行折射激光眼手术的方法
    • US20100114076A1
    • 2010-05-06
    • US12612898
    • 2009-11-05
    • Dan Z. ReinsteinHartmut VogelsangDaniel Neal
    • Dan Z. ReinsteinHartmut VogelsangDaniel Neal
    • A61F9/008A61B3/10
    • A61F9/00806A61F9/00827A61F2009/00846A61F2009/00872A61F2009/0088A61F2009/00882
    • A method of performing refractive laser eye surgery on a human eye is provided wherein the ablation pattern is centered along the visual axis, rather than along the line of sight. First, a wavefront, either ocular, corneal or a combination thereof, is generated by a wavefront sensor centered along the line of sight. This measured wavefront is centered on and encompasses a patient's pupil. Then, an analysis pupil is determined which encompasses the measured pupil. The analysis pupil is centered along the visual axis at the point of intersection with the cornea. Consequently, the measured wavefront is reconstructed over the analysis pupil only using data taken over the area covered by the measured pupil. This reconstruction is done through a least squares fit of a series of slopes from the measured wavefront and/or through the transformation of aberration coefficients. Finally, an ablation pattern, or a lenticule generation pattern, to be performed by a refractive laser centered on the corneal intersect of the visual axis is produced in accordance with the reconstructed wavefront.
    • 提供了一种在人眼上执行折射激光眼外科手术的方法,其中消融图案沿视轴居中,而不是沿着视线。 首先,通过以视线为中心的波前传感器产生波前,眼睛,角膜或其组合。 这个测量的波前是以患者的瞳孔为中心并且包含患者的瞳孔。 然后,确定包含测量瞳孔的分析瞳孔。 分析瞳孔在与角膜交点处沿视轴居中。 因此,仅使用在测量瞳孔覆盖的区域上拍摄的数据,通过分析瞳孔重建测量的波前。 通过从测量的波前和/或通过像差系数的变换的一系列斜率的最小二乘拟合来完成该重建。 最后,根据重建的波前产生由以视轴的角膜相交为中心的折射激光进行的消融图案或微透镜生成图案。