A surgical instrument for at least partial occlusion of the uterus blood vessels comprising two opposing jaws with scissor-type handles and a latching mechanism.Each jaw has a straight member 1 and a straight member 2 connected with an angle 30-45 degrees. Each said member 1 has a tubular cover. Each member 2 is integrated with the scissor-type handle. Each jaw has an inner side and an outer side. The jaws are made movable relative to each other in order to at least partially occlude the uterus blood vessels by the opposite sides of the covers on the inner sides of the members 1. The latching mechanism is made to retain the jaws in the working position over a needed period of time and release the jaws when the need for occlusion is over.Each cover has an inner cavity open from one end for receiving and retaining the member 1 of said jaw. The thickness of each said cover on the inner side of the member 1 is 8-12 mm, the width of said cover is 10-30 mm, the length of said cover is 50-60 mm, and said cover is made of soft plastic, silicon, fabric, gauze or non woven material.