Low wear artificial spinal disc
An artificial spinal disc (10) for surgical placement between adjacent vertebrae including a first component (20) for attaching to a first vertebrae, the first component (20) having a concave recess (28), with the concave contoured surface having a circumference of 360 DEG . A second component (30)...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | An artificial spinal disc (10) for surgical placement between adjacent vertebrae including a first component (20) for attaching to a first vertebrae, the first component (20) having a concave recess (28), with the concave contoured surface having a circumference of 360 DEG . A second component (30) for attaching to a second vertebrae, the second component (30) including a projection (38) with a convex surface, the convex contoured surface having a circumference of 360 DEG . The corresponding contoured surfaces are shaped to allow an unrestricted rotational and a flexion/extension bending motion between the first (20) and second (30) components relative to a patient's normal spinal axis when in a standing position with the spine in a straightened position. |
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