Patent ID: 6695843
Filing Date: 2004-02-24
Classification: A61B

Abstract:
A fixing element comprising:a shank having a head side; an outer nut; a cylindrical receiving part on the head side for receiving a rod to be connected to the fixing element, wherein the receiving part has an open bore and a substantially U-shaped cross-section with two exposed legs having an outer thread; wherein the outer nut comprises an edge, an inner thread and a cover part, wherein the outer nut can be screwed on to said outer thread, said outer nut further comprising an interior containing a sleeve-shaped element; the sleeve-shaped element having a predetermined inner measurement and comprising a casing, a first surface facing the cover part, a second surface facing away from the cover part, an inner first wall section with a first diameter, an inner second wall section following in the direction of the second surface and running convexly in the direction of the second surface, and a third wall section adjacent to the inner second wall section; wherein the outer diameter of the casing is almost identical to or slightly smaller than the diameter of the bore; and a pressure element structured and arranged to be positioned in the casing, wherein the pressure element has a first section, the first section having an outer diameter that is larger than the first diameter and that effects a widening of the casing when pressure is exerted on the receiving rod.