Patent ID: 6059805
Filing Date: 2000-05-09
Classification: A61B,A61F

Abstract:
A corneal surgical apparatus for incising a cornea of a patient's eye in a layered form, comprising;fixing means adapted to abut against the patient's eye, said fixing means having an opening from which the cornea is projected;first sucking means for sucking air in a gap formed between said fixing means and the patient's eye, so as to fix said fixing means to the patient's eye;a blade for incising the cornea projected from the opening;oscillating means for laterally oscillating said blade;blade moving means for rectilinearly moving said blade in an incising direction;applanating means for applanating the cornea, said applanating means including a flat plate defining a flat side opposing the cornea, and second sucking means for sucking air in a gap between said flat plate and the cornea;plate moving means for moving said flat plate in a direction away from a surface of said blade in conjunction with the rectilinear movement of said blade by said blade moving means;pressure detecting means for detecting air pressure in the gap which changes due to the suction by said first sucking means; anddrive controlling means for controlling at least one of said oscillating means and said blade moving means on the basis of information on the pressure detected by said pressure detecting means.