A device and a method for shrinkage of tissue containing collagen is described. The device comprises a heating tip, a support shaft, and a control system. The heating tip comprises a heating element and a temperature sensor therein. The control system is configured to receive a temperature feedback from the temperature sensor and to regulate energy delivered to the heating element based on the temperature feedback. Heating of the tissue region causes shrinkage of collagen-containing tissue, thereby closing any perforation or opening in the tissue region.
