Patent ID: 9186191
Filing Date: 2015-11-17
Classification: A61B

Abstract:
1. A multi-planar, polyaxial coupling assembly for securing an elongate member to a spine, the multi-planar, polyaxial coupling assembly comprising: an anchor member having a head portion and a shank portion depending from the head portion with the anchor member having an axis along which the shank portion extends; and a coupling device having a cavity configured for snap-fit receipt of the anchor member head portion therein and to allow for pivotal and rotary adjustment of the anchor member so that the axis thereof can be oriented to extend in different directions and in different planes; wherein the coupling device has flexible wall portions that extend about the cavity, the anchor member head portion has a pair of opposite tapered and substantially flat side surface portions that taper toward each other up along the anchor member head portion so that an upper end portion of the anchor member head portion has a minimum width extending thereacross between the tapered side surface portions that is in clearance with the flexible wall portions for ease of insertion of anchor member head portion into the coupling device cavity for being snap-fit therein; and wherein the anchor member head portion is rotatable in the cavity to an anchor member retention position.