Surgical devices for keratoplasty and methods thereof

Claim 1

IN COMBINATION WITH A CORNEA-SUPPORTING PLATFROM HAVING AN OPENING THEREIN, A CORNEAL TISSUE UNDERCUTTING INSTRUMENT GUIDABLY SUPPORTED IN THE PLATFORM OPENING AND COMPRISING A CYLINDRICAL INSERT FOR SLIDABLE COOPERATION WITH THE PLATFORM INSTRUMENT OPENING, MEANS ON THE INSTRUMENT FOR LIMITING THE DEPTH OF INSERTION INTO THE PLATFORM OPENING, A ROTATABLE SHAFT HAVING A CUTTING BLADE AT ONE END FOR UNDERCUTTING AN OPENING IN A CORNEA, MEANS AT THE OTHER END OF THE SHAFT FOR RADIALLY ROTATING THE SHAFT AND BLADE, AND MEANS FOR PRESENTING SAID BLADE FROM A NON-CUTTING RETRACTED INOPERATIVE POSITION TO A CUTTING OPERATIVE POSITION.