Device, a catheter, and a method for the curative treatment of varicose veins
OwnerLeonardo Masotti, Antonio Collarino +2inventors
InventorsLeonardo Masotti, Antonio Collarino, Damiano Fortuna, Cesare Paolini
Life of this patent
Estimating the term…
Abstract
Described herein are a device and a method for the treatment of varicose veins via laser radiation, and in particular using a holmium laser. The radiation of a laser source (5) is injected in a fiber (3) that can be inserted in the vessel to be treated. The laser source emits a radiation such as to cause a hyalinizing sclerosis with structural modifications both to the fibers of the collagen (shrinkage) and to the extracellular matrix of the median coat of the vein by the photothermal effect, substantially without thermal stress of the morphological component of the tunica media and of the tunica intima.
Claims64
A device for the treatment of varicose veins, including a laser source and at least one optical-fiber means for conveying the laser radiation to the vein, wherein the laser source has characteristics of emission such as to cause a hyalinizing sclerosis with structural modifications both to fibers of the collagen (shrinkage) and to the extracellular matrix of the median coat of the vein by the photothermal effect, substantially without thermal stress of the morphological component of the tunica media and of the tunica intima.
An angiological catheter for the treatment of varicose veins, including a plurality of optical fibers terminating in one end of the catheter and arranged and made so as to orient the respective beams in a direction inclined outwards with respect to the axis of the catheter.
A method for the curative treatment of varicose veins, including application to the wall of a diseased vein of a laser radiation that causes a hyalinizing sclerosis, by direct photothermal effect, to the extracellular matrix substantially limited to the median coat of the vein, without thermal stress of the morphological component of the tunica media and of the tunica intima.
A method for the curative intravascular treatment of varicose veins including the following steps:
- percutaneous introduction of a wave-guide into the vein to be treated;
- irradiation, through said wave-guide, of the wall of said vein with a laser radiation that causes a hyalinizing sclerosis, by direct photothermal effect, with structural modifications both to fibers of the collagen (shrinkage) and to the extracellular matrix substantially limited to the median coat of the vein, without thermal stress of the morphological component of the tunica media and of the tunica intima;
- and
- sliding of said wave-guide during emission of the laser radiation along the stretch of the diseased vein.
Dependencies are inferred from the claim text.