| 主权项 |
1. An intervertebral implant configured to be inserted into an intervertebral space that is defined by a first vertebral body and a second vertebral body, the intervertebral implant comprising:
(a) a body defining a rear body surface, a front body surface spaced from the rear body surface in a forward direction, an upper body surface, a lower body surface spaced from the upper body surface along a vertical direction that is perpendicular to the forward direction such that the upper body surface is spaced from the lower body surface a first maximum distance along the vertical direction, the body including a first recess defined by both the front body surface and the upper body surface, and a second recess defined by both the front body surface and the lower body surface, wherein the body is configured such that when the intervertebral implant is inserted into the intervertebral space: 1) at least a portion of the upper body surface contacts an endplate of the first vertebral body; and 2) at least a portion of the lower body surface contacts an endplate of the second vertebral body; and (b) a plate comprising a biocompatible material, the plate defining a rear plate surface and a front plate surface that is spaced from the rear plate surface, an upper plate surface and a lower plate surface spaced from the upper plate surface, wherein the plate defines:
i. a first plate hole configured to receive a portion of a first bone fixation element such that the first bone fixation element passes through the endplate of the first vertebral body, the first plate hole including a first opening in the front plate surface and a second opening in the upper plate surface; andii. a second plate hole configured to receive a portion of a second bone fixation element such that the second bone fixation element passes through the endplate of the second vertebral body, the second plate hole including a third opening in the front plate surface and a fourth opening in the lower plate surface;wherein the plate is configured to be mounted to the body such that the rear plate surface faces the body and at least a portion of the plate is recessed with respect to a portion of the front body surface in a rearward direction that is opposite the forward direction, and when the plate is mounted to the body:
i. at least a portion of the upper plate surface is configured to face the endplate of the first vertebral body and at least a portion of the lower plate surface is configured to face the endplate of the second vertebral body;ii. a center of the first opening is spaced from a first plane that both intersects the upper body surface and is normal to the vertical direction by a second distance along the vertical direction, and the center of the first opening is further spaced from a second plane that both intersects the lower body surface and is normal to the vertical direction a third distance along the vertical direction, such that the second and third distances are each less than the first maximum distance, the first plane spaced from the second plane by the first maximum distance; andiii. a center of the third opening is spaced from the first plane a fourth distance along the vertical direction and the center of the third opening is further spaced from the second plane a fifth distance along the vertical direction, such that the fourth and fifth distances are each less than the first maximum distance; andiv: the first recess is aligned with one of the first and second plate holes and the second recess is aligned with the other of the first and second plate holes. |
