Importance

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Abstract

Flexible fastening device designed to interlock a longitudinal element (1) and an osseous anchor device (2), either internal, in particular vertebral, or external, the anchor device (2) comprising an intra-osseous part and an extra-osseous part (20) associated to a tightening device (21), the fastening device (10) comprising a first connection part (13a) and a second connection part (13b) designed to receive the extra-osseous part (20) of the anchor device (2), and an intermediate part (12a, 12b) joining the first and second connection parts (13a, 13b) and designed to encircle tightly the longitudinal element (1), the flexible fastening device (10) comprising a strand (11) out of elastic material or of material in the process of phase transformation, and the intermediate part (12a, 12b) comprising at least one spiral coil (12a, 12b) adapted to encircle the longitudinal element (1), so that a bringing closer of the first and second connection parts (13a, 13b) by the tightening device (21) or by the effect of the phase transformation of the strand (11) to memory material reduces the diameter of the spiral coil (12a, 12b) to ensure the translational and rotational blocking of the longitudinal element (1).

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First Claim