The device generally relates to medicine, more particularly to surgery, and may be used to carry out dissection and occlusion of tubular structures and organs via ligating them with surgical sutures. The invention improves improving the reliability of the application of sutures with a body with control tools at the proximal end and at the distal end, the suture retriever with cutting elements and suture fixators, the device for capturing and clamping the tissue that is provided with oppositely located clamping jaws and knot fixators, and also the body that has pivoted clip with cutting edges for cutting free ends of ligations and transmitting gear, implemented capable of transmitting the controlling action from the control tools to the device for capturing and clamping the tissue, the suture retriever, and the pivoted clip, wherein the device for capturing and clamping the tissue is provided tissue fixation elements located on the clamping jaws.