Dr. Zamboni has applied for a patent on a valvulotomy device:

Quote:
A DEVICE FOR TREATING VALVULAR MALFORMATIONS IN PERIPHERAL VENOUS VESSELS, SUCH AS INTERNAL JUGULAR VEINS AND KIT THEREFOR

Abstract: A device for venous valvulotomy, usable for example for valvulotomy of the jugular veins includes: - a cutting tool (12) having at least one cutting formation (120) for performing the action of valvulotomy; and - a collection element (14), set in a proximal position with respect to the cutting tool (12) for collecting the residue of valvulotomy entrained by the blood flow from the cutting tool (12).

http://www.wipo.int/pctdb/en/wo.jsp?IA=IB2010053355
This is picture link

http://img863.imageshack.us/img863/6906/valvulotomytool.png

Dr. Sinan uses this way, he said that all patients who have been subjected to this procedure did not have restenosis ..