Techniques for heat-treating varicose veins

Details Techniques for heat-treating varicose veins Techniques for heat-treating varicose veins

A - Human Necessities

61

B

A61B 18/04 (2006.01)

Patent

CA 2587228

An apparatus for treating varicose veins includes a catheter (20) where the distal end is placed within a varicose vein and the proximal portion remains outside the body of the subject. A heating element (22) heats the vein. A cooling element (62) can be applied to an external surface of the skin above the vicinity of the heating element. A control unit (26) can drive the heating element to apply heat to the vein simultaneously. Alternatively, the control unit can apply a current to the heating element to resistively heat a resistive element. A method for treating a varicose vein includes inserting the elongated heating element into the vein, and driving the heating element to apply heat to the segment of vein simultaneously from the entire active heating portion.

L~invention concerne un appareil de traitement des varices comprenant un cathéter (20) dont l~extrémité distale est placée dans une varice et dont la partie proximale reste hors du corps du sujet. Un élément chauffant (22) chauffe la veine. Un élément refroidissant (62) peut être appliqué à une surface extérieure de la peau située au-dessus de l~endroit où se trouve l~élément chauffant. Une unité de commande (26) peut actionner l~élément chauffant pour appliquer simultanément de la chaleur à la veine. En variante, l~unité de commande peut appliquer un courant à l~élément chauffant pour chauffer de manière résistive un élément résistif. L~invention concerne en outre un procédé de traitement d~une varice comprenant l~insertion de l~élément chauffant allongé dans la veine et l~actionnement de l~élément chauffant pour appliquer de la chaleur au segment de veine simultanément à partir de toute la partie chauffante active.

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