Patent ID: 9554837
Date: 2017-01-31
CPC Classifications: A61B

Claim:
1. A fixation device for fixing an elongate element in a seat of a retaining structure, said fixation device comprising a body having: (a) a bore extending along a longitudinal axis and defining an opening for receiving the elongate element, (b) a clamping portion which is radially deformable so that the opening can be reduced in size to grip the elongate element, and (c) an outer surface having at least one protrusion which can be brought to bear against a corresponding projection in the seat by only rotating the body about the longitudinal axis in and relative to the seat, to deform the clamping portion radially inward against the elongate element, wherein the protrusion has a rounded outer contour, when viewed in a direction perpendicular to direction of the longitudinal axis, so that the direction of said longitudinal axis and the elongate element can be adjusted over a range of angles by tilting the body in the seat, the outer contour of the protrusion at least partially widens radially, seen in a circumferential direction, and in a region of the outer contour, viewed in an azimuth plane perpendicular to the longitudinal axis, a distance of the outer contour increases outward from the longitudinal axis as a function of an angle of revolution about the longitudinal axis.