| 摘要 |
The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations. |
| 主权项 |
1. An intervertebral implant comprising:
a body portion comprising an anterior end, a posterior end, a first side portion connecting the anterior end and the posterior end, and a second side portion connecting the anterior end and the posterior end, the anterior end, posterior end, first side portion and second side portion defining a central opening; an expandable member comprising a fixed end, an expandable end, a first arm, and a second arm, the first arm and the second arm being connected at the fixed end, the first arm and the second arm being moveable with respect to one another at the expandable end, wherein at least a portion of the expandable member is received within the central opening of the body portion; a ramped translation member having at least one expansion portion, at least a portion of the translation member is received within the central opening, at least a portion of the ramped translation member being received within a channel defined between the first arm and the second arm of the expandable member; and an actuation member in engagement with the ramped translation member. |
