SYSTEM FOR LASER SURGICAL OPHTHALMOLOGY Russian patent published in 2014 - IPC A61F9/01 A61F9/08 H01S3/10 

FIELD: medicine.

SUBSTANCE: group of inventions refers to medical equipment. A system comprises: a pulse laser light source with the laser light parameters specified to make a photodestruction corneal incision, a scanner for laser light travel, an electronic control unit, a modular unit for emitted laser pulse modulation. The control unit controls the scanner according to the incision geometry specified to form a flap and providing a border incision along a specific flap border and to cut out a flap bed according to a snake-like or spiral beam travel pattern with a number of opposite straight-line portions, and with a number of reverse curves each of which pieces the ends of the two straight-line portions and localised outside the flap. The control unit can also control the modular unit so that to suppress some laser pulses in the pattern sections localised outside the flap. According to the other version of the invention, the modular unit control provides for energy reduction and/or blanking of some laser pulses as approaching internal turns of the spiral pattern to ensure a fixed energy per a unit of area within the centre and at the periphery of the cornea.

EFFECT: using the presented group of inventions enables reducing the thermal injury of eye tissue when making the incisions by short-pulse laser light.

12 cl, 4 dwg