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METHOD AND APPARATUS FOR MODIFICATIONS OF VISUAL ACUITY BY THERMAL MEANS

机译:通过热手段修改视力的方法和装置

摘要

This invention is a thermo-keratoplasty system and method for locally heatingand reshaping a cornea in a manner that produces aminimal regression of the corneal correction. The system includes a probe (12)that is coupled to a power source which can provide currentat a predetermined power, frequency and time duration. The probe (12) has asharp tip (36) that is inserted into the stroma of the cornea(48). The tip has an insulated stop that controls the depth of tippenetration. Current flows into the cornea through the probe tip to locallyheat and denature the corneal tissue. The denatured tissue causes a subsequentshrinkage of the cornea. A pattern of denatured areas canbe created around the cornea to correct the vision of the eye.
机译:本发明是用于局部加热的热角膜移植系统和方法并重塑角膜以产生角膜矫正的最小回归。该系统包括一个探针(12)耦合到可以提供电流的电源以预定的功率,频率和持续时间。探头(12)具有一个尖锐的尖端(36)插入角膜基质(48)。烙铁头具有绝缘的挡块,可控制烙铁头的深度渗透。电流通过探头尖端流入角膜并局部加热并使角膜组织变性。变性的组织导致随后的角膜收缩。变性区域的图案可以在角膜周围产生以矫正眼睛的视力。

著录项

  • 公开/公告号CA2248279C

    专利类型

  • 公开/公告日2006-11-21

    原文格式PDF

  • 申请/专利权人 REFRACTEC INC.;

    申请/专利号CA19962248279

  • 发明设计人 HOOD LARRY;MENDEZ G. ANTONIO;

    申请日1996-02-08

  • 分类号A61B18/14;A61F9/01;A61F9/013;A61F9;

  • 国家 CA

  • 入库时间 2022-08-21 20:54:16

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