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公开(公告)号：US5766171A
公开(公告)日：1998-06-16
申请号：US629062
申请日：1996-04-08
CPC分类号： A61B18/14 , A61F9/013 , A61B18/1402 , A61F9/0079
摘要： This invention is a device and procedure for the correction of optical abnormalities in a human eye. It involves use of an inventive electrosurgical energy probe with specific physical configurations. The process preferably utilizes a high frequency RF electro-desiccation or ablation device. The procedure involves the initial step of forming at least one access site allowing access to the corneal volume behind the Bowman's Layer. It preferably is placed in the anterior surface of the cornea through and ending posterior to the Bowman's layer of the eye. The electrosurgical probe is then introduced into the access site and, depending upon the visual abnormality to be corrected, the probe is activated to adjust the volume of the corneal stromal layers through ablation or desiccation. The shape of the volume desiccated or ablated is dependent upon the aberration to be corrected. For instance, if the optical aberration to be alleviated is hyperopia, a circular corneal volume reduction taking place about the outer periphery of the corneal mass may be accomplished. In other instances, such as for the treatment of astigmatism, certain smaller sections of the corneal volume may be shrunk. In certain circumstances, Bowman's layer may be cut to allow the curvature of the cornea to change after the corneal volume adjustment. These relief cuts may be radial, circular, semicircular or any other form appropriate for the option adjustment needed.
摘要翻译： 本发明是用于校正人眼光学异常的装置和程序。 它涉及使用具有特定物理配置的本发明的电外科能量探针。 该方法优选利用高频RF电干燥或消融装置。 该过程涉及形成至少一个访问站点的初始步骤，允许访问Bowman层后面的角膜体积。 它优选地放置在角膜的前表面中并通过并结束于眼睛Bowman层的后面。 然后将电外科探针引入进入部位，并且根据要校正的视觉异常，激活探针以通过消融或干燥来调节角膜基质层的体积。 干燥或消融的体积的形状取决于要校正的像差。 例如，如果要减轻的光学像差是远视，则可以实现围绕角膜块的外周发生的圆角角膜体积减小。 在其他情况下，例如用于散光治疗，角膜体积的某些较小部分可能会收缩。 在某些情况下，可以切割Bowman层以允许角膜体积调整后角膜的曲率改变。 这些减压可以是径向，圆形，半圆形或适合于所需选项调整的任何其他形式。
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公开(公告)号：US5318047A
公开(公告)日：1994-06-07
申请号：US59509
申请日：1993-05-10
申请人： James Davenport , Bryan Loomas , Mark Mathis , Thomas Silvestrini
发明人： James Davenport , Bryan Loomas , Mark Mathis , Thomas Silvestrini
摘要： A method for refractive correction of the eye in order to improve the vision of the eye while not adversely affecting its natural asphericity is described. The method involves determining the amount of correction necessary, selecting an intrastromal corneal ring (ICR) of appropriate thickness to obtain the necessary correction from a selection of ICRs of varying thickness, and inserting the ICR into the corneal stroma. The method may be useful for the correction of myopia and excessive astigmatism.
摘要翻译： 描述了为了改善眼睛的视力而不会不利地影响其天然非球面度的眼睛的屈光矫正的方法。 该方法包括确定必要的校正量，选择适当厚度的冠状动脉内角膜环（ICR），以从不同厚度的ICR的选择中获得必要的校正，并将ICR插入角膜基质。 该方法可用于矫正近视和过度散光。
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公开(公告)号：US5188125A
公开(公告)日：1993-02-23
申请号：US594379
申请日：1990-10-05
CPC分类号： B21F45/008 , A61F2/147 , A61F9/013 , B21F3/02
摘要： Surgical apparatus for inserting a plastic, split end, adjusting ring into the stroma of the cornea of the eye wherein the adjusting ring includes, as a part thereof, a dissecting head to part the stroma and provide a pathway for the adjusting ring as the ring is rotated. The ends of the adjusting ring are moved to change the shape of the cornea to a desired shape in accordance with the desired visual correction after which the ends of the adjusting ring are fixably joined to maintain the desired shape.
摘要翻译： 用于将塑料，分裂端，调节环插入眼睛角膜的基质的外科手术装置，其中调节环的一部分包括解剖头以部分基质，并为调节环提供作为环的路径 旋转 移动调节环的端部以根据期望的视觉校正将角膜的形状改变为期望的形状，之后调节环的端部可固定地接合以保持期望的形状。
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公开(公告)号：US6051023A
公开(公告)日：2000-04-18
申请号：US969216
申请日：1997-11-12
IPC分类号： A61F2/14
CPC分类号： A61F2/14
摘要： Surgical apparatus for inserting a plastic, split end, adjusting ring into the stroma of the cornea of the eye wherein the adjusting ring includes, as a part thereof, a dissecting head to part the stroma and provide a pathway for the adjusting ring as the ring is rotated. The ends of the adjusting ring are moved to change the shape of the cornea to a desired shape in accordance with the desired visual correction after which the ends of the adjusting ring are fixably joined to maintain the desired shape.
摘要翻译： 用于将塑料，分裂端，调节环插入眼睛角膜的基质的外科手术装置，其中调节环的一部分包括解剖头以部分基质，并为调节环提供作为环的路径 旋转 移动调节环的端部以根据期望的视觉校正将角膜的形状改变为期望的形状，之后调节环的端部可固定地接合以保持期望的形状。
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公开(公告)号：US5653752A
公开(公告)日：1997-08-05
申请号：US392910
申请日：1995-02-28
申请人： Thomas Silvestrini , Mark Mathis , Bryan Loomas
发明人： Thomas Silvestrini , Mark Mathis , Bryan Loomas
CPC分类号： A61F2/147
摘要： The intrastromal corneal ring is adjustable in thickness and has an elongated, flexible, preferably transparent or translucent body which forms a circle. The intrastromal corneal ring is of a size such that it can be inserted into a human eye and is comprised of a material which is compatible with human ocular tissue. The thickness of the ring can be adjusted so that it is not necessary to stock a plurality of different rings of different sizes to be used in connection with a method of adjusting the shape of the cornea of the eye. A plurality of different embodiments of intrastromal corneal rings, including a spiral shaped intrastromal corneal ring, are disclosed each of which are adjustable in terms of their thickness. The thickness may be adjusted prior to the insertion of the intrastromal corneal ring into the cornea and may not be further adjustable after insertion. However, in accordance with preferred embodiments the intrastromal corneal ring is inserted at a thickness which is believed to be proper and may thereafter be further adjusted in order to precisely define the desired thickness and thereby more precisely adjust the shape of the cornea and focus the light entering the eye on the retina.
摘要翻译： 胸腔内角膜环厚度可调，并且具有形成圆形的细长的，柔性的，优选的透明或半透明的身体。 椎间盘内角膜环的尺寸使得其可以插入到人眼中并且由与人眼组织相容的材料组成。 可以调节环的厚度，使得不需要与调整眼睛的角膜的形状的方法一起使用不同尺寸的多个不同的环。 公开了多个不同的体内角膜环的不同实施例，其包括螺旋状的根际角膜环，其中的角膜环可根据其厚度进行调节。 可以在将内分泌式角膜环插入角膜之前调整厚度，并且在插入后可能不能进一步调节。 然而，根据优选实施例，根据被认为是适当的厚度插入脉管内角膜环，并且此后可以进一步调整以精确地限定所需厚度，从而更精确地调整角膜的形状并聚焦光 进入视网膜的眼睛。
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公开(公告)号：US5592246A
公开(公告)日：1997-01-07
申请号：US440512
申请日：1995-05-12
申请人： William P. Kuhn , Phillip C. Baker
发明人： William P. Kuhn , Phillip C. Baker
CPC分类号： A61B3/107 , G01B11/255
摘要： This invention provides a method and apparatus for mapping the surface of an object, in particular, a transparent object such as anterior and posterior surfaces of a patient's cornea, in a clinically useful time using a single optical system. In a preferred embodiment, a pattern generator projects a pattern of light and dark areas onto a patient's cornea, and a light detector receives patterns reflected from the anterior and posterior surfaces of the cornea. A mapping means generates a three-dimensional map of the anterior and posterior corneal surfaces from information regarding the projected and detected light patterns. The invention can be used to map other transparent objects such as a contact lens or an intraocular device, e.g., an intrastromal ring. The invention can also be used to map the surface of an opaque object.
摘要翻译： 本发明提供了一种用于使用单个光学系统在临床有用的时间内对象的表面，特别是诸如患者角膜的前表面和后表面的透明物体进行映射的方法和装置。 在优选实施例中，图案生成器将光和暗区域的图案投射到患者的角膜上，并且光检测器接收从角膜的前表面和后表面反射的图案。 映射装置从关于投影和检测到的光图案的信息生成前角膜和后角膜表面的三维图。 本发明可用于映射诸如隐形眼镜或眼内装置之类的其它透明物体，例如内旋环。 本发明还可用于映射不透明物体的表面。
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公开(公告)号：US5888243A
公开(公告)日：1999-03-30
申请号：US469845
申请日：1995-06-06
CPC分类号： A61F9/0017 , A61F2/147
摘要： This invention is an intrastromal corneal ring housing comprising at least one outer layer of a physiologically compatible polymer having a low modulus of elasticity, which polymer may be hydratable and may be hydrophilic. The inner portion of the hybird intrastromal corneal ring may be hollow or may contain one or more physiologically compatible polymers.
摘要翻译： 本发明是一种内部角膜环外壳，其包含具有低弹性模量的生理相容性聚合物的至少一个外层，该聚合物可以是可水合的并且可以是亲水的。 hybird intrastromal角膜环的内部可以是中空的或可以包含一种或多种生理上相容的聚合物。
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公开(公告)号：US5785651A
公开(公告)日：1998-07-28
申请号：US484204
申请日：1995-06-07
申请人： William P. Kuhn , Phillip C. Baker
发明人： William P. Kuhn , Phillip C. Baker
IPC分类号： G01B11/02 , G01B11/255 , A61B3/10 , A61B3/107
CPC分类号： G01B11/255 , G01B11/026 , G01B2210/50
摘要： A novel apparatus and method for the quick and accurate determination of surface profile and depth reading within little or no mechanical motion is presented comprising a polychromatic light source; a means for focusing the light onto a point of sample target, said means having a known amount of longitudinal chromatic aberration; and a means for detecting the wavelengths of light reflected from the sample target. The light projected onto the sample target is focused according to wavelength due to the longitudinal chromatic aberration. While light from across the spectrum will be reflected, the light returning from the sample target will be most strongly reflected in a wavelength that is focused on a reflective point in the sample. The means for detecting the light in the present invention passes through a substantially pinhole aperture before the light is detected according to wavelength. The purpose of the pinhole aperture is resolution. The pinhole aperture ensures that those wavelengths that focus onto the pinhole are more strongly detected than wavelengths that do not focus on the aperture. Thus, the resolution of wavelength intensity peaks is greatly increased.
摘要翻译： 提出了一种用于在很少或没有机械运动的情况下快速和准确地确定表面轮廓和深度读数的新型装置和方法，其包括多色光源; 用于将光聚焦到样本目标点上的装置，所述装置具有已知量的纵向色差; 以及用于检测从样品靶反射的光的波长的装置。 投影到样本目标上的光由于纵向色差而根据波长聚焦。 当来自光谱的光将被反射时，从样本目标返回的光将被最强烈地反映在聚焦在样品中的反射点上的波长中。 在根据波长检测到光之前，用于检测本发明的光的装置通过基本上的针孔。 针孔的目的是分辨率。 针孔孔径确保了聚焦在针孔上的那些波长比不聚焦在孔径上的波长更强烈地被检测。 因此，波长强度峰值的分辨率大大提高。
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公开(公告)号：US5405384A
公开(公告)日：1995-04-11
申请号：US163650
申请日：1993-12-06
CPC分类号： A61F2/147
摘要： This invention is an intrastromal corneal ring ("ICR") which is not uniform in dimension. It has, typically, two or more raised areas (or areas of additional bulk) spaced apart from each other on the ring. This ring design, when introduced into the stroma and properly adjusted there, permits at least partial correction of astigmatism in the eye.
摘要翻译： 本发明是一种尺寸不均匀的冠状动脉内角膜环（“ICR”）。 它通常具有在环上彼此间隔开的两个或更多个凸起区域（或额外体积的区域）。 这种环形设计在被引入基质并在那里进行适当调整时，允许眼睛中至少部分矫正散光。
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公开(公告)号：US5403335A
公开(公告)日：1995-04-04
申请号：US214654
申请日：1994-03-15
申请人： Bryan Loomas , James Davenport , Mark Mathis
发明人： Bryan Loomas , James Davenport , Mark Mathis
CPC分类号： A61F2/147 , A61F9/013 , A61B2017/306 , A61B2017/320052
摘要： This invention is a surgical device for producing a generally circular, interlamellar pathway within the corneal stroma of the eye. The device is made up of three major components: a vacuum centering guide having an inner bore which fits at one end against the front of the eye, a barrel which fits within the inner bore of the centering guide and to which is attached the third major component, a generally circular dissecting ring. The dissecting ring is shaped in such way that when an eye surgeon twists the barrel to which the ring is attached, the ring moves through the interlamellar space in the stroma producing the desired channel or pathway. The centering guide may optionally include a ring having one or more pins which firmly engage the cornea's epiphilium. The constituent parts of the surgical device, particularly the dissecting ring, also form a part of this invention. A split ring, or intracorneal ring ("ICR"), is inserted into the intrastromal passageway produced by the inventive device. The ICR changes the shape of the cornea and, in doing so, provides a chosen measure of visual correction.
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