Patent ID: 8774904

Claim:
A device for examining or treating living tissue by means of local heating of the tissue by absorbing electromagnetic radiation, comprising: at least one electromagnetic radiation source adapted to emit electromagnetic radiation, a control unit adapted to control the irradiation parameters of the radiation source, and at least one FD-OCT apparatus with a light source adapted to deliver a measurement light to light the living tissue in the area of the absorption of the electromagnetic radiation, a computational unit adapted to: determine, based on the phase information of the FD-OCT interference light, the depth-resolved tissue velocity for a predetermined measuring site on the tissue and along a predetermined irradiation direction of the measurement light, integrate the determined tissue velocity with respect to time, differentiate the calculated time integral with respect to space, and display the spatial derivative as a function of space and time and/or provide the spatial derivative as a function of space and time to an evaluation module and/or the control unit.