Laser therapy device for therapy of a living tissue

A laser therapy device for therapy of a living tissue, comprising:

• a pulsed laser light source which emits laser light with an emission power in the range of 5 W to 100 W for irradiation of the tissue, a detection device for detecting time-dependent changes in volume resulting from laser absorption in the tissue, a processor for evaluating the detected volume changes and outputting control commands to a control circuit for controlling the power of the laser light irradiated into the tissue, wherein:
• each triggering of tissue irradiation causes a first heating laser pulse with a first power and a first pulse duration and at least a second heating laser pulse with a second power and a second pulse duration to be applied to the tissue at a predetermined temporal pulse interval;
• the detection device optically or acoustically records the detected volume changes resulting from a rising power gradient of the first heating laser pulse and supplies corresponding measured values to the processor;
• the processor, based on the measured values and taking into account at least the rising power gradient of the first heating laser pulse, determines an estimated value for a temperature increase in the tissue during irradiation of the first heating laser pulse;
• and
• from the estimated value, the processor generates a command for the control circuit, which causes the control circuit to adjust the second power and/or the second pulse duration of the second heating laser pulse so that the irradiation of the second heating laser pulse heats the tissue to a predetermined target temperature.