Shape memory alloy staple
AssigneeSDGI Holdings, Inc.
InventorsJames Ogilvie, Troy D. Drewry, Michael C. Sherman
Life of this patent
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Abstract
A fusionless method of correcting spinal deformities in growing adolescents is disclosed utilizing a shape memory alloy staple. Various embodiments of the shape memory alloy staple include features such as barbs on the inner and outer surfaces of the prongs in the shape memory alloy staple as well as the use of notches on the crossbar or cross plate connecting the prongs to the shape memory alloy staple. In some embodiments, the shape memory alloy staple has an aperture defined through the cross plate for receiving a bone screw or other bone anchor which in turn allows the interconnection of a longitudinal member.
Claims27
A spinal staple, comprising:
- a first prong;
- a second prong;
- a bridge member interconnecting said first and second prongs and including a plurality of notches, said plurality of notches permitting independent seating of said first and second prongs;
- and
- wherein at least a portion of said staple is formed of a shape memory material having a memorized state and a deformed state, said first and second prongs being disposed closer to one another in said memorized state than in said deformed state.
A spinal staple, comprising:
- a cross member;
- a first leg extending from a first end portion of said cross member;
- a second leg extending from a second end portion of said cross member;
- and
- wherein said first and second legs each have an inwardly facing surface and an outwardly facing surface, each of said surfaces defining a plurality of barbs;
- and
- wherein at least a portion of said staple is formed of a shape memory material having a memorized state and a deformed state, said first and second legs being disposed closer to one another in said memorized state than in said deformed state.
Dependencies are inferred from the claim text.