Patent ID: 9248047
Filing Date: 2016-02-02
CPC Classification: A61B,A61F

Claim Text:
1. A system for protecting tissue in the treatment of an eye with a focused pulsed laser beam generated by a laser system, comprising one or more processors configured to implement an operating data module and a processing module: the operating data module configured to store operating data which define shape and position of an operating area inside the tissue of the eye operated on by the focus of the laser beam during the treatment by moving the focus within the operating area inside the tissue of the eye, and the processing module configured to generate control data for the laser system on the basis of input data, the input data comprising the operating data, and wherein the processing module is configured to determine, based on an eye model defined by stored eye dimensions, the light propagation in the eye for the projection of a laser pulse onto the focus within the operating area inside the tissue of the eye, to determine, based on the eye model, the light irradiated into eye structures located outside the operating area for the projection of the laser pulse onto the focus within the operating area inside the tissue of the eye, to determine a load on the eye structures located outside the operating area from the light irradiated into the eye structures located outside the operating area, as determined based on the eye model, and to generate the control data by taking into consideration the load on the eye structures located outside the operating area in such a manner that the control data limits the time of the treatment by the focus of the laser beam at positions within the operating area inside the tissue of the eye in each case in such a manner that tissue damage resulting from the treatment by the laser beam is essentially prevented in eye structures located outside the operating area, and the processors are further configured to control the laser system using the control data.