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    • 2. 发明申请
    • METHOD AND APPARATUS TO GUIDE LASER CORNEAL SURGERY WITH OPTICAL MEASUREMENT
    • 用光学测量指导激光角膜手术的方法和装置
    • US20070282313A1
    • 2007-12-06
    • US11757195
    • 2007-06-01
    • David HuangJonathan SongYan LiMaolong Tang
    • David HuangJonathan SongYan LiMaolong Tang
    • A61B18/18
    • A61B3/1005A61B3/102A61F9/00804A61F9/00831A61F2009/00851A61F2009/00872A61F2009/0088A61F2009/00882
    • Optical coherence tomography (OCT) is used to map the surface elevation and thickness of the cornea. The OCT maps are used to plan laser procedures for the treatment of an irregular, opacified or weakened cornea, and in the treatment of refractive errors. In the excimer laser phototherapeutic keratectomy (PTK) procedure, the OCT data is used to plan a map of ablation depth needed to restore a smooth optical surface. In the excimer laser photorefractive keratectomy procedure, OCT mapping of epithelial thickness is used to achieve clean laser epithelial removal. In femtosecond laser anterior keratoplasty procedure, OCT data is used to plan the depth of femtosecond laser dissection to remove an anterior layer of the cornea, leaving a smooth recipient bed of uniform thickness to receive a disk of donated corneal tissue. The linkage of an OCT system to a precise laser surgical system enables the performance of new procedures that are safer, less invasive and produce faster visual recovery than conventional surgical procedures.
    • 光学相干断层扫描(OCT)用于绘制角膜的表面高程和厚度。 OCT图用于计划用于治疗不规则,不透明或弱化的角膜的激光程序,以及治疗屈光不正。 在准分子激光治疗性角膜切除术(PTK)中,OCT数据用于计划恢复光滑表面所需的消融深度图。 在准分子激光屈光角膜切除手术中,使用上皮厚度的OCT图来实现清洁的激光上皮移除。 在飞秒激光前角膜移植术中,OCT数据用于计划飞秒激光解剖深度以去除角膜前壁,留下均匀厚度的平滑受体床,以接收捐赠的角膜组织盘。 OCT系统与精确的激光手术系统的联系使得能够执行比常规外科手术更安全,更少侵入性并且产生更快的视觉恢复的新程序。