Patent ID: 11872138
Assignee: LDR MEDICAL
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. An intervertebral implant comprising:
a first plate including a first bone contacting surface configured to contact an endplate of a first vertebral body and a first articulation surface opposite the first bone contacting surface, the first plate further including a first elongated osseous anchorage member extending between opposing trailing and leading peripheral edges and along a longitudinal axis of the first plate and configured to anchor the first plate into the first vertebral body, wherein the first elongated osseous anchorage member is positioned between the first plate and the endplate of the first vertebral body when the intervertebral implant is inserted into a patient, wherein a direction of insertion of the first plate and a direction of insertion of the first elongated osseous anchorage member as compared to the endplate of the first vertebral body are the same when the intervertebral implant is inserted into the patient, and wherein the first plate comprises a first opening in a vicinity of a trailing peripheral edge of the first plate;
a second plate including a second bone contacting surface configured to contact an endplate of a second vertebral body and a second articulation surface opposite the second bone contacting surface, the second plate further including a second elongated osseous anchorage member extending between opposing trailing and leading peripheral edges and along a longitudinal axis of the second plate and configured to anchor the second plate into the second vertebral body, wherein the second elongated osseous anchorage member is positioned between the second plate and the endplate of the second vertebral body when the intervertebral implant is inserted into the patient, wherein a direction of insertion of the second plate and a direction of insertion of the second elongated osseous anchorage member as compared to the endplate of the second vertebral body are the same when the intervertebral implant is inserted into the patient, wherein the second plate comprises a curved surface of articulation, and wherein the second plate comprises a second opening in a vicinity of a trailing peripheral edge of the second plate; and
a core disposed between the first plate and the second plate configured to enable relative movement between the first plate and the second plate, wherein the core has restricted movement relative to the second plate,
wherein one or more of the leading peripheral edges of the first and second bone contacting surfaces comprises a bevel to facilitate insertion of the intervertebral implant between the first and second vertebral bodies, wherein one or more of the trailing peripheral edges of the first and second bone contacting surfaces is unbeveled, and wherein only a portion of one or more side peripheral edges of the first and second bone contacting surfaces comprises the bevel with a remaining portion of the one or more side peripheral edges being unbeveled,
wherein respective median planes representing the first and second bone contacting surfaces of the first and second plates form an acute angle allowing the intervertebral implant to correct a slope defect of the first and/or second vertebral bodies, wherein the first and second elongated osseous anchorage members are aligned along the respective median planes of the first and second plates, and wherein the first and second openings lie along the respective median planes of the first and second plates.