Hinged polyaxial screw and methods of use

Details Hinged polyaxial screw and methods of use Hinged polyaxial screw and methods of use

A - Human Necessities

61

B

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

Patent

CA 2624114

A bone-anchoring device (100) is provided. The device may include a substantially rigid shaft (160) having a threaded portion configured to engag bone. The bone- anchoring device may further include a head portion (180) securely attached to the shaft and a cap portion (200) having a hinged connection (220) with the head portion. A substantially spherical cavity(240) may be formed between the head portion and the cap portion.

L'invention concerne un dispositif (100) d'ancrage osseux. Ce dispositif peut comprendre une tige (160) sensiblement rigide comportant une partie filetée conçue pour venir se fixer dans le tissu osseux. Le dispositif d'ancrage osseux peut en outre comprendre une partie tête (180) assemblée solidement à la tige, et une partie chapeau (200) reliée à la tête par un dispositif (220) d'assemblage articulé. Une cavité (240) sensiblement sphérique peut être formée entre la partie tête et la partie chapeau.

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