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    • 46. 发明授权
    • Corneal vacuum centering guide and dissector
    • 角膜真空定心导向器和解剖器
    • US06632232B1
    • 2003-10-14
    • US08933855
    • 1997-09-19
    • Bryan LoomasJames DavenportMark Mathis
    • Bryan LoomasJames DavenportMark Mathis
    • A61B1732
    • A61F2/147A61B2017/306A61B2017/320052A61F9/013
    • 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.
    • 本发明是用于在眼睛的角膜基质内产生大致圆形的层间途径的手术装置。 该装置由三个主要部件组成:具有内孔的真空定心导向件,该内孔适合于一端靠近眼睛的前端,一个装在中心导向件内孔内的筒体, 组件,一般为环形解剖环。 解剖环的形状使得当眼外科医生扭转环所附着的圆筒时,环移动通过基质中的层间空间,产生所需的通道或通路。 定心引导件可以可选地包括具有一个或多个销的环,其牢固地接合角膜的骨架。 手术装置的组成部分,特别是解剖环,也构成本发明的一部分。将裂口环或颈内环(“ICR”)插入由本发明装置产生的基质内通道中。 ICR改变了角膜的形状,在这样做时,提供了一种选择的视力矫正措施。