Support device for the human spine

Abstract

Abstract Supporting device for the human spinal column, with an elongate, dorsally implantable holding device, at least two pedicle screws which have a head and a threaded shaft, and whose head is mounted pivotably about an axis on the holding device, which axis runs approximately perpendicular to the axis of the threaded shaft, while the threaded shaft protrudes from the holding device, and with a securing device for fixing the pedicle screws in the set angular position and at the desired axial distances from one another; the holding device has at least two separate bolts, which preferably have a thread and which cooperate with a sleeve, preferably having a thread, and which have at the head ends a clamping surface lying on the axis or parallel to the axis; the head of the pedicle screws has two approximately parallel clamping surfaces extending approximately parallel to the axis of the threaded shaft, and one screw connection is provided per bolt, which screw connection fixes the clamping surfaces of bolts and pedicle screws or of two bolts in their position clamped against one another. <IMAGE>

Inventors

No inventors recorded.

Bibliographic Details