초록 ▼

A bone alignment assembly is disclosed having bone anchor subassemblies for securing to both bones and a bone position retainer, wherein the bone position retainer includes a longitudinal member for maintaining a desired alignment of the bones when the bone anchor assemblies are secured to the bone

A bone alignment assembly is disclosed having bone anchor subassemblies for securing to both bones and a bone position retainer, wherein the bone position retainer includes a longitudinal member for maintaining a desired alignment of the bones when the bone anchor assemblies are secured to the bone position retainer. Each of the bone anchor subassemblies includes a shaft and one or more pairs of components (e.g., washers) wherein the components of each pair have mating spherical concave and convex surfaces that can mate together in a plurality of angular positions. When the shaft extends through each of the pairs of mating components, and also through a passageway of the bone position retainer that is sandwiched between the two pairs of mating components, the shaft can be secured at any one of a plurality of orientations relative to the bone position retainer.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus for retaining one or more bones in a desired alignment, comprising:a bone position retainer for maintaining a desired position of a first bone, wherein said bone position retainer includes first and second sides, and having a bore from said first side to said

[ What is claimed is:] [1.] An apparatus for retaining one or more bones in a desired alignment, comprising:a bone position retainer for maintaining a desired position of a first bone, wherein said bone position retainer includes first and second sides, and having a bore from said first side to said second side;one or more bone anchors, wherein each of said one or more bone anchors includes (A1) through (A5) as follows:(A1) a bone anchoring shaft having a shaft axis, said shaft extending through said bore in a direction coincident with the shaft axis, said shaft having a bone contacting portion extending away from said first side, and an opposite portion extending away from said second side, wherein said bone contacting portion secures said shaft to the first bone;(A2) a first outside component having a surface S.sub.1, wherein a curved portion of said surface S.sub.1 is one of concave and convex, and wherein said first outside component substantially surrounds a first periphery of said shaft between said first side and said bone contacting portion;(A3) a first inside component having a surface S.sub.2, wherein S.sub.2 has a curved surface for mating with said curved portion of S.sub.1 ;(A4) a second outside component having a surface S.sub.3, wherein a curved portion of said surface S.sub.3 is one of concave and convex, and wherein said second outside component substantially surrounds a second periphery of said shaft between said second side and an end of said opposite portion, said second periphery being traverse to the shaft axis;(A5) a second inside component having a surface S.sub.4, wherein S.sub.4 has a curved surface for mating with said curved portion of S.sub.3 ;wherein S.sub.1 and S.sub.2 are capable of being mated together in a plurality of different orientations, and wherein S.sub.3 and S.sub.4 are also capable of being mated in a plurality of different orientations so that the shaft axis of said shaft can be oriented at a plurality of different orientations relative to the bone position retainer.