Implant for the spinal column and actuating instrument

摘要

The invention relates to an implant device, comprising an actuating instrument (110) and a height-adjustable implant (10) having a substantially U-shaped inner basket (11) and a U-shaped outer basket (60), wherein the inner basket (11) of the implant (10) is embraced by the outer basket (60) and telescopically guided, and the inner basket (11) and outer basket (60) are equally aligned, and wherein the limb (12, 13) of the inner basket (11) and the limb (61, 62) of the outer basket (60) are aligned so that a substantially continuous lateral opening (80) results, and the inner (11) and outer (60) baskets can be fixed with respect to each other in a predetermined end position, and wherein vertebral support surfaces are provided on the end faces (18, 63) of the baskets (11, 60), wherein the actuating instrument (110) has a fixation rod (111) and an expansion mechanism with sliding elements (122), and the inner basket (11) and fixation rod (111) have corresponding elements (26, 112), by means of which a detachable, rigid connection between the fixation rod (111) and inner basket (11) is achieved, and wherein by actuating the expansion mechanism on the actuating instrument, the outer basket (60) can be moved in the longitudinal direction (L) by the engagement of the sliding elements (122) at the limbs (61, 62) opposite the inner basket (61).

主权项

1. An implant device comprising; an actuating instrument and a height-adjustable implant, the height-adjustable implant comprising an inner cage and an outer cage, wherein the inner cage is substantially U-shaped in cross-section, wherein the inner cage comprises a bottom, a front face, and limbs, wherein the outer cage is U-shaped in cross-section, wherein the outer cage comprises a bottom, a front face, and limbs, wherein the inner cage of the implant is received by the outer cage and telescopically guided, and the inner cage and the outer cage are equally aligned, and wherein the limbs of the inner cage and the limbs of the outer cage are aligned such that a substantially continuous lateral opening lies opposite the bottoms of the two cages, and the inner and outer cages can be fixed with respect to each other in a predetermined end position, and wherein vertebral support surfaces are provided on the front faces of the cages, characterized in that the actuating instrument has a fixation rod and an expansion mechanism with sliding elements, and the inner cage and the fixation rod have corresponding elements, by means of which a releasable, rigid connection between the fixation rod and the inner cage is achieved, and wherein, by actuating the expansion mechanism on the actuating instrument, the outer cage can be moved in a longitudinal direction relative to the inner cage by engagement of the sliding elements on the limbs.