| abstract |
Elastic element (72) to be used in a stabilization device (130) for bones or vertebrae, which is configured as an essentially cylindrical tubular body having a helix recess (202) in its wall along its main axis ( A) with a first end and a second end opposite the first, and a coaxial bore (201) extending from the first to the second end, the recess (202) leading radially into the bore (201) of the body, body that presents at its opposite ends in each case an internal thread (4, 4 ', 41, 163) or a cylindrical extension with an external thread (161, 171, 172) to join it with a rod and / or a head of a bone screw or for joining it with a rod part or a plate, a core (71) being provided in the hole (201) configured so as to increase the flexural strength of the elastic element, characterized in that the core (71) serves as a stop when they exercise fu Pressure gauges on the elastic element. |