For dividing an equipment of the fibre structure including a conduit It mutually circulates positioned at the expandable members of a proximate distal ends of conduit and with a chamber of conduit Cutting element positioned at an outer surface of expandable members. A method of it for dividing a fibre structure include being placed around the expandable members for allowing a cutting element to be located on it in fibre structure It extends to the outside expandable members and tenses fibre structure across cutting element It activates the cutting element weakened or cuts down fibre structure. A method of it for handling complication of wrist include inserting a needle into canalis carpi Guide a seal wire to a position near ligamentum carpi transversum Advance, along seal wire, the equipment with an expandable members and a cutting element Place cutting element Ligament is tensed across cutting element Weaken or cut ligament.