Screw and rod fixation assembly and device

A screw fixation device comprising fixing means for selectively fixing a screw head, said fixing means including an inner surface wall having a gripping portion for fixedly gripping the screw head.

An apparatus for fixedly gripping and securing a screw head comprising a passageway including side-walls and inherent locking means for gripping and locking the screw head as the screw head enters through said passageway and into said locking means.

The apparatus according 17, wherein said passageway includes a substantially tubular body.

A rod receiving device comprising rod seating means for seating a rod therein including at least one flexible portion capable of being compressed against a rod seated within said rod seating means, wherein said flexible portion has a tapered outer surface end.

A locking member for securing and engaging a rod and rod seating means including at least one flexible portion, said locking member including deflecting means for deflecting the at least one flexible portion of the rod seating means against and around the rod as said locking member further engages the at least one flexible portion of the rod seating means.

A substantially annular ring comprising an edge portion extending about a centered axis, said edge portion having a frustoconical surface tapering outwardly toward said edge portion for engaging a screw head while allowing a portion of the screw to pass therethrough.

A screw and rod fixation assembly comprising:

• fixing means for fixing a screw, said fixing means including an inner surface wall having a gripping portion and a non-gripping portion, and at least one aperture extending through said inner surface wall;
• and
• rod seating means operatively engaged to said fixing means for seating a rod therein including at least one flexible portion capable of being compressed against a rod seated within said rod seating means, wherein said flexible portion has a tapered outer surface and at least one tab means radially extending from said tapered outer surface for operatively engaging and inserting into said at least one aperture of said inner surface wall.

A screw fixation assembly for fixing a screw and a rod comprising:

• fixing means for fixing a screw, said fixing means including an inner surface wall having a gripping portion and a non-gripping portion and at least one indentation thereon;
• and
• plug securing means engaged on a portion of a rod for securing the rod within said fixing means, said plug means including extension tabs means for engaging said at least one indentation of said inner surface wall.