Pedicel screw, and correcting and supporting apparatus...

Details Pedicel screw, and correcting and supporting apparatus... Pedicel screw, and correcting and supporting apparatus...

A - Human Necessities

61

B

A61B 17/58 (2006.01) A61B 17/60 (2006.01) A61B 17/70 (2006.01) A61B 17/86 (2006.01)

Patent

CA 2045502

ABSTRACT A bone screw to be used in combination with a correction and supporting apparatus is provided. With such correction and supporting device the problem arises that when two vertebrae are expanded, the vertebra in between said vertebrae is shifted to the inside of the curvature of the spinal column. To correct or prevent such lateral shifting a bone screw is provided having a threaded shaft (60) and a segmented or fully spherically shaped head (61), an extension (62) having a support face (64) fitting on said head (61) being provided. An element (66) is connected to said extension (62). Said element (66) serves to connect said extension with a rod (29,30) at said correction and supporting apparatus. Element (66) and extension (62) are connected such that the distance between the support face and said element may be adjusted.

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