Patent ID: 7922735
Filing Date: 2011-04-12
Classification: A61F

Abstract:
1. A device for cutting a cornea of an eye in order to correct refractive power of the eye comprising: (a) a frame comprising a fixation ring drawable onto the eye, a receptacle, and a peripheral recess disposed between the fixation ring and the receptacle; (b) an applanator received in the receptacle for deforming the cornea within the fixation ring, said applanator being coaxially displaceable relative to the fixation ring; (c) a holding device guided on the frame in a guiding plane perpendicular to an axis of the fixation ring; (d) a blade held by the holding device in front of the applanator and passing into the frame through the peripheral recess with a clearance from the frame during cutting into corneal tissue of the cornea, said blade being radially displaceable relative to the fixation ring and movable around an axis perpendicular to the guiding plane via the holding device for cutting into the corneal tissue, the blade not resting on the frame during radial displacement, movement about the axis perpendicular to the guiding plane, and cutting into the corneal tissue; and (e) a vibrator supported on the holding device for setting the blade in oscillatory motion in a cutting plane of the blade.