Patent ID: 7087050
Filing Date: 2006-08-08
Classification: A61F

Abstract:
1. A surgical instrument for placement around the limbus of an eye during corneal surgery thereon by laser, comprising: a. a lower ring having a vertical axis, an upper surface and a lower surface spaced axially apart and defining a thickness therebetween, and an outer diameter and an inner diameter spaced radially apart and defining an annular wall therebetween, all together defining a disc-shaped structure having a central aperture surrounded by an annular wall; b. wherein the inner diameter of said lower ring is sized to fit closely about the circumference of the limbus of the eye; and, c. wherein said lower ring includes a platform having an upper surface which has an area at least the size of a hinged corneal flap to be created in the course of said corneal surgery, which said upper surface of said platform extends radially outward from an inner diameter of said lower ring which is proximate to the hinge of said corneal flap and is disposed at a height which is above the lower surface of said lower ring where said lower surface of said lower ring intersects with the outer diameter of said lower ring.