Abstract: A facet distraction prosthesis (10, 30) includes an array of facet distraction base elements (12, 32) connected to each other by one or more connector elements (14, 34). A pair of diagonally adjacent base elements (12, 32) are connected to each other by a set of or more connector elements (14, 34) which intersects with another set of one or more connector elements (14, 34) that connects another pair of diagonally adjacent base elements (12, 32). The connector elements (14, 34) are flexible so that the base elements (12, 32) can flex with respect to each other and adapt to a geometry of a facet joint.

Abstract: A delivery device includes a guide tool and an impact tool. The guide tool includes an elongate body formed with a longitudinal guide channel, whose inner perimeter is made to complement an outer contour of an implant. The elongate body is formed with a longitudinal impact-tool channel, whose inner perimeter is made to complement an outer contour of the impact tool.

Abstract: A facet distraction prosthesis includes an array of facet distraction base elements, connected to each other by a set of connector elements located at adjacent base elements. The set of connector elements includes a male connector having an at least partial cylindrical or spherical contour that is received in, and articulates with, an at least partial cylindrical or spherical recess of a female connector, so that adjacent ones of the base elements can bend in multiple degrees of freedom about different bending axes with respect to each other and adapt to a geometry of a facet joint.

Abstract: A facet distraction prosthesis includes an array of facet distraction base elements, connected to each other by a set of connector elements located at adjacent base elements. The set of connector elements includes a male connector having an at least partial cylindrical or spherical contour that is received in, and articulates with, an at least partial cylindrical or spherical recess of a female connector, so that adjacent ones of the base elements can bend in multiple degrees of freedom about different bending axes with respect to each other and adapt to a geometry of a facet joint.

Abstract: A delivery device includes a guide tool and an impact tool. The guide tool includes an elongate body formed with a longitudinal guide channel, whose inner perimeter is made to complement an outer contour of an implant. The elongate body is formed with a longitudinal impact-tool channel, whose inner perimeter is made to complement an outer contour of the impact tool.

Abstract: A facet distraction prosthesis (10, 30) includes an array of facet distraction base elements (12, 32) connected to each other by one or more connector elements (14, 34). A pair of diagonally adjacent base elements (12, 32) are connected to each other by a set of or more connector elements (14, 34) which intersects with another set of one or more connector elements (14, 34) that connects another pair of diagonally adjacent base elements (12, 32). The connector elements (14, 34) are flexible so that the base elements (12, 32) can flex with respect to each other and adapt to a geometry of a facet joint.