Intervertebral implant
First Claim
1. An adjustable spinal fusion intervertebral implant comprising:
- upper and lower body portions each having proximal and distal surfaces at proximal and distal ends thereof, the proximal and distal surfaces of the upper and lower body portions generally facing each other;
a proximal wedge member disposed at the proximal ends of the respective ones of the upper and lower body portions;
a distal wedge member disposed at the distal ends of the respective ones of the upper and lower body portions;
first and second linkages each connected to the upper and lower body portions, wherein the first and second linkages are rotatable with respect to the upper and lower body portions from a first configuration to a second configuration; and
an actuator shaft received between the upper and lower body portions, the actuator shaft extending intermediate the distal and proximal wedge members, wherein rotation of the actuator shaft causes the distal and proximal wedge members to be drawn together such that longitudinal movement of the distal wedge member against the distal surfaces and the longitudinal movement of the proximal wedge member against the proximal surfaces causes separation of the upper and lower body portions.
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Accused Products
Abstract
An adjustable spinal fusion intervertebral implant including upper and lower body portions each having proximal and distal surfaces at proximal and distal ends thereof. The implant can include a proximal wedge member disposed at the proximal ends of the respective ones of the upper and lower body portions, and a distal wedge member disposed at the distal ends of the respective ones of the upper and lower body portions. First and second linkages can connect the upper and lower body portions. Rotation of an actuator shaft can cause the distal and proximal wedge members to be drawn together such that longitudinal movement of the distal wedge member against the distal surfaces and the longitudinal movement of the proximal wedge member against the proximal surfaces causes separation of the upper and lower body portions.
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Citations
30 Claims
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1. An adjustable spinal fusion intervertebral implant comprising:
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upper and lower body portions each having proximal and distal surfaces at proximal and distal ends thereof, the proximal and distal surfaces of the upper and lower body portions generally facing each other; a proximal wedge member disposed at the proximal ends of the respective ones of the upper and lower body portions; a distal wedge member disposed at the distal ends of the respective ones of the upper and lower body portions; first and second linkages each connected to the upper and lower body portions, wherein the first and second linkages are rotatable with respect to the upper and lower body portions from a first configuration to a second configuration; and an actuator shaft received between the upper and lower body portions, the actuator shaft extending intermediate the distal and proximal wedge members, wherein rotation of the actuator shaft causes the distal and proximal wedge members to be drawn together such that longitudinal movement of the distal wedge member against the distal surfaces and the longitudinal movement of the proximal wedge member against the proximal surfaces causes separation of the upper and lower body portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification