Abstract: The invention relates to a device for closing a vein juncture in the treatment of varicose veins including a catheter which can be inserted into a venous system and at the distal end of which an expandable balloon is arranged, a covering which is arranged circumferentially on the balloon and can be expanded by means of said balloon, wherein the proximal covering end is designed to be open, and at least one adhesion agent for acting on the expanded covering such that it adheres to a vein wall in order to close the vein juncture.

Abstract: A device for treatment of varicose veins includes a catheter (1), which can be inserted into a vein to be treated. There is a balloon (2) with at least one cutting element (3) for cutting at least part of an inner wall of the vein arranged on a proximal end (1a) of the catheter. The catheter has side openings (7a-7c), through which a sclerosing agent can be introduced into the vein. The at least one cutting element includes a cutting edge configured to cut intima and media of the vein when withdrawing the balloon from the vein after treatment with the sclerosing agent.

Abstract: The device for the treatment of varicose veins includes a catheter (1), which can be inserted into a vein to be treated. There is a balloon (2) with at least one cutting element (3) for cutting at least part of the inner wall of the vein arranged on the proximal end (1a) of the catheter. The catheter has side openings (7a-7c), through which a sclerosing agent can be introduced into the vein.