EXPANDABLE FUSION DEVICE FOR POSITIONING BETWEEN ADJACENT VERTEBRAL BODIES

摘要

In some embodiments, system and/or method may include an intervertebral implant for a human spine including an upper body, a lower body, first and second expansion members, and an expansion mechanism. A superior surface of the upper body may function to engage a first vertebra of the human spine. An inferior surface of the lower body may function to engage a second vertebra of the human spine. The first expansion member may include at least a first angled portion positionable, during use, between the upper body and the lower body. The second expansion member may include at least a second angled portion positionable, during use, between the upper body and the lower body. An expansion mechanism may convey, during use, the first and second angled portions in opposing directions increasing a separation distance between the upper body and the lower body.

主权项

1. An intervertebral implant for a human spine, comprising:
an upper body comprising an inferior surface and a superior surface, wherein the superior surface of the upper body is configured to engage a first vertebra of the human spine; a lower body comprising a superior surface and an inferior surface, wherein the inferior surface of the lower body is configured to engage a second vertebra of the human spine; a first expansion member comprising at least a first angled portion positionable, during use, between the inferior surface of the upper body and the superior surface of the lower body, wherein at least the first angled portion is oriented towards a first end of the intervertebral implant; a second expansion member comprising at least a second angled portion positionable, during use, between the inferior surface of the upper body and the superior surface of the lower body, wherein at least the second angled portion is oriented towards a second end of the intervertebral implant, wherein at least the second angled portion is oriented in an opposing direction relative to at least the first angled portion; and an expansion mechanism conveys, during use, the first and second angled portions in opposing directions increasing a separation distance between the upper body and the lower body.