Intervertebral implant with deformable wedge
First Claim
1. An intervertebral implant including a wedge which is adapted to be inserted between two spinout processes, wherein said wedge has two opposite grooves each having an axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10% to 30% of the total volume of said wedge, which renders said wedge elastically deformable.
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0 Petitions
Accused Products
Abstract
The invention relates to an intervertebral implant including a wedge which is inserted between two spinous processes and has two opposite grooves in which said spinous processes engage, which grooves have substantially parallel axes, and each of which grooves is defined by two flanges. The wedge has at least one central opening between said two grooves and said central opening passes completely through said wedge along an axis Ac substantially parallel to the axes Ag1 and Ag2 of said grooves, which renders said wedge elastically deformable.
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Citations
16 Claims
- 1. An intervertebral implant including a wedge which is adapted to be inserted between two spinout processes, wherein said wedge has two opposite grooves each having an axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10% to 30% of the total volume of said wedge, which renders said wedge elastically deformable.
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4. An intervertebral implant including a wedge which is adapted to be inserted between two spinous processes, wherein said wedge has two opposite grooves each having an axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10% to 30% of the total volume of said wedge, which renders said wedge elastically deformable;
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wherein said wedge is made of polyether ether ketone. - View Dependent Claims (5, 6, 7, 12)
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8. An intervertebral implant including a wedge which is adapted to be inserted between two spinous processes, wherein said wedge has two opposite grooves each having an axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10%to 30% of the total volume of said wedge, which renders said wedge elastically deformable;
wherein said opening has a substantially rectangular parallelepiped shape with two parallel faces perpendicular to an axis intersecting the axes of said grooves at right angles. - View Dependent Claims (9, 10, 15, 16)
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11. An intervertebral implant including a wedge which is adapted to be inserted between two spinous processes, and a fixing band adapted to retain said wedge between said processes,
wherein said wedge has two opposite grooves each having as axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10% to 30% of the total volume of said wedge, which renders said wedge elastically deformable; said wedge further having;
fixing means for connecting said band to said wedge; and
self-locking fixing means in its lateral walls adapted to receive said fixing band in order to immobilize it relative to said wedge. - View Dependent Claims (13, 14)
Specification