Medialised rod pedicle screw assembly
AssigneeCustom Spine, Inc.
InventorsMahmoud F. Abdelgany, Young Hoon Oh
Life of this patent
Estimating the term…
Abstract
A pedicle screw assembly and method of assembly comprises a longitudinal member; a bendable ball ring adapted to receive the longitudinal member; a poly stem comprising a bendable male bulbous end; and a connector comprising a pair of first apertures adapted to receive the poly stem; and a second aperture adapted to receive the ball ring and the longitudinal member, wherein the second aperture is transverse to the first aperture. The assembly further comprises a bone fixator component comprising a female socket adapted to receive the poly stem; and a blocker pin adapted to engage the poly stem and to secure the longitudinal member.
Claims19
An assembly comprising:
- a bendable ball ring;
- a stem component comprising a bendable and expandable round hollow male bulbous end;
- a bone fixator component comprising a female socket that receives said bulbous end of said stem component;
- a connector comprising:
- a first aperture that receives said stem component;
- and
- a second aperture that receives said bendable ball ring, wherein said second aperture is positioned transverse to said first aperture;
- a blocker pin that engages said stem component and expands said bulbous end;
- wherein said stem component further comprises:
- a threaded open end opposite said bulbous end, wherein said bulbous end comprises a plurality of slots;
- and a hole in said bulbous end terminating at said plurality of slots, wherein said hole receives said blocker pin.
A pedicle screw assembly comprising:
- a longitudinal member;
- a bendable ball ring adapted to receive said longitudinal member;
- a poly stem comprising a bendable male bulbous end;
- a connector comprising:
- a pair of first apertures adapted to receive said poly stem;
- a second aperture adapted to receive said ball ring and said longitudinal member, wherein said second aperture is transverse to said first aperture;
- a medial portion comprising said second aperture;
- and
- a pair of prongs connected by said medial portion, wherein said pair of prongs comprise said pair of first apertures;
- a bone fixator component comprising a female socket adapted to receive said poly stem;
- and
- a blocker pin adapted to engage said poly stem and to secure said longitudinal member.
A method of assembling a pedicle screw assembly, said method comprising:
- attaching a stem component comprising a male bulbous end to a bone fixator component comprising a female socket;
- securing said bone fixator component in a bone;
- engaging a connector over said stem component, wherein said connector comprises:
- a first aperture for receiving said stem component;
- a second aperture transverse to said first aperture;
- a medial portion comprising said second aperture;
- and
- a pair of prongs connected by said medial portion, wherein said pair of prongs comprise said first aperture;
- inserting a ball ring into said second aperture of said connector;
- inserting a longitudinal member in said ball ring;
- inserting a blocker pin in said first aperture of said connector;
- and
- engaging said blocker pin with said stem component.
Dependencies are inferred from the claim text.