Spinal implant and implant inserter
First Claim
1. An intervertebral implant and implant inserter, comprising an intervertebral implant comprising an implant body including superior and inferior sides, medial and lateral sides, an anterior end and a posterior end, each of said superior and inferior sides having a central section and convexly curving sides sections on opposite sides of said central section, each of said side sections being composed of a plurality of convex surface segments of different radii of curvature, each of said medial and lateral sides having a concave inward portion defining a cavity;
- and an implant inserter comprising a pair of holding members configured to be respectively removably matingly received in said cavity of said implant, each of said holding members having a cross-sectional configuration defined by a convex inner portion complementary to the corresponding one of said concave inward portions of said implant and a convex outer portion including an intermediate convex section extending between said superior and inferior sides of said implant when said holding members are respectively removably matingly received in said cavities, each of said intermediate convex sections being composed of a plurality of convex surface segments of different radii of curvature
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Abstract
An intervertebral implant includes an implant body having superior and inferior sides, medial and lateral sides, and anterior and posterior ends. The superior and inferior sides each include a central section and convex side sections extending from opposite sides of the central section to the medial and lateral sides. The convex side sections are composed of a plurality of convex surface segments of different radii of curvature. The medial and lateral sides each have a concave inward portion and superior and inferior outward portions defining a cavity. An implant inserter includes a pair of holding members for being removably received in the cavities of the implant with an intermediate convex section of each holding member extending between the superior and inferior sides of the implant. The intermediate convex section of each holding member is composed of a plurality of convex surface segments of different radii of curvature.
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Citations
20 Claims
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1. An intervertebral implant and implant inserter, comprising
an intervertebral implant comprising an implant body including superior and inferior sides, medial and lateral sides, an anterior end and a posterior end, each of said superior and inferior sides having a central section and convexly curving sides sections on opposite sides of said central section, each of said side sections being composed of a plurality of convex surface segments of different radii of curvature, each of said medial and lateral sides having a concave inward portion defining a cavity; - and
an implant inserter comprising a pair of holding members configured to be respectively removably matingly received in said cavity of said implant, each of said holding members having a cross-sectional configuration defined by a convex inner portion complementary to the corresponding one of said concave inward portions of said implant and a convex outer portion including an intermediate convex section extending between said superior and inferior sides of said implant when said holding members are respectively removably matingly received in said cavities, each of said intermediate convex sections being composed of a plurality of convex surface segments of different radii of curvature - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An intervertebral implant and implant inserter, comprising
an intervertebral implant comprising an implant body including superior and inferior sides, opposed medial and lateral sides, an anterior end wall, and a posterior end wall, each of said superior and inferior sides having a straight central section and convexly curving side sections on opposite sides of said central section, each of said side sections being composed of a plurality of convex surface segments of different radii of curvature, each of said medial and lateral sides having a concave inward portion and superior and inferior concave outward portions defining a cavity, said superior and inferior concave outward portions of each of said medial and lateral sides being curved in opposition to the corresponding one of said concave inward portions and extending toward one another to meet a corresponding one of said side sections of said superior and inferior sides to respectively define superior and inferior protrusions over the corresponding one of said cavities; - and
an implant inserter comprising a pair of holding members configured to be respectively removably received in said cavities with a mating fit, each of said holding members having a cross-sectional configuration defined by a convex inner portion complementary to the corresponding one of said concave inward portions of said implant, and a convex outer portion curving in opposition to said inner portion, each of said convex outer portions including superior and inferior convex sections and an intermediate convex section extending between said superior and inferior convex section, said superior and inferior convex sections being complementary to the corresponding ones of said superior and inferior concave outward portions of said implant to be respectively overlapped by said superior and inferior protrusions of said implant when said holding member is matingly received in the corresponding one of said cavities, each of said intermediate convex sections extending between the corresponding ones of said superior and inferior protrusions when said holding member is matingly received in the corresponding one of said cavities, each of said intermediate convex sections being composed of a plurality of convex surface segments of different radii of curvature. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An intervertebral implant and implant inserter, comprising
an intervertebral implant comprising an implant body including superior and inferior sides, opposed medial and lateral sides, an anterior end wall, and a posterior end wall, each of said superior and inferior sides having a straight central section and convexly curving side sections on opposite sides of said central section, each of said side sections being composed of a plurality of convex surface segments of different radii of curvature including a first convex surface segment extending from said central section, a second convex surface segment extending from said first convex surface segment, and a third convex surface segment extending from said second convex surface segment to meet the corresponding one of said medial or lateral sides, each of said medial and lateral sides having a concave inward portion and superior and inferior concave outward portions extending from said concave inward portion to meet said third convex surface segments of the corresponding ones of said superior and inferior sides, each of said medial and lateral sides having a cavity defined by the corresponding ones of said concave inward portion and said superior and inferior concave outward portions; - and
an implant inserter comprising a pair of holding members configured to be respectively removably received in said cavities with a mating fit, each of said holding members having a cross-sectional configuration defined by a convex inner portion complementary to the corresponding one of said concave inward portions of said implant, and a convex outer portion including an intermediate convex section extending between said third convex surface segments of said implant when said holding member is matingly received in a corresponding one of said cavities, each of said intermediate convex sections being composed of a plurality of convex surface segments of different radii of curvature including upper and lower convex surface segments, intervening convex surface segments extending respectively from said upper and lower convex surface segments, and a middle convex surface segment extending between said intervening convex surface segments. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification