A vascular catheter contains a catheter body, which is made up of an inner tube formed of a metal or an alloy, and an outer tube formed of a synthetic resin covering the outside surface of the inner tube. The inner tube has one or more spiral slits in the distal end portion. A vascular dilatation instrument includes an inner tube, an outer tube disposed coaxially around the inner tube, and an inflatable member having one end attached to the inner tube and another end attached to the outer tube.

Vascular lesion removal lasers are used to remove the vascular lesions present in the skin. Problems such as tiny blood vessels that develop from sun exposure, hemangiomas or conditions like rosacea (an entity partly characterized by blood vessels) can be improved or eradicated without scarring. Medical conditions that were once impossible to treat, such as port-wine stain hemangiomas, which are flat vascular patches present since birth, may now be substantially improved or even completely eliminated. Blood vessels of the legs, sometimes known as spider veins, can also be greatly improved or even made to disappear. The laser treats very small blood vessels most effectively and dermatologic conditions improved by the vascular laser include scars and stretch marks. Reddish, elevated, and itchy scars can be made less red, flatter, and less bothersome by treatment with the proper laser. Thay can be appropriately used for the soles of the feet, where recalcitrant warts can occur.