Patent ID: 6083236
Filing Date: 2000-07-04
Classification: A61F

Abstract:
A surgical device for performing corneal resectioning, comprising:a positioning ring to position and retain an eyeball, the positioning ring having an opening for a cornea of the eyeball to protrude therethrough;an applanation shoe having a surface for restraining corneal tissue, the surface having a surface reference plane;a blade assembly including a blade having a cutting edge and a longitudinal axis parallel to the cutting edge, and a blade support mechanism attaching to the blade at attachment points near longitudinally distal ends of the blade to suspend the blade between the attachment points; anda drive mechanism holding the applanation shoe proximate the positioning ring such that a cornea protruding through the opening of the positioning ring presses against the restraining surface of the applanation shoe, the drive mechanism impelling the blade support mechanism to move the blade through a blade plane between the positioning ring and the applanation shoe at a controlled distance from the surface reference plane of the applanation shoe.