26-07-2018 дата публикации
Номер: US20180207003A1
Принадлежит:
An expandable interbody implant adapted for insertion at least into a disc space, between two adjacent vertebrae of a spine. An upper member and a lower member are pivotally connected at least by a drive link. A bone graft storage portion packed with a selected volume of bone growth material. A translational wall is provided between the bone graft storage portion and a trailing end of the implant. An actuator engages the bone graft storage portion, pushing it forward into engagement with the drive link, which pivots upward, moving the upper member upward away from the lower member. Upward movement of the upper member raises the translational wall to a position to assist in retention of the selected volume bone graft material within the hollow portion of the bone graft storage portion. Upward rotation of the drive link brings a face thereof into contact with a front of the bone graft storage portion, thereby retaining near constant volume of the bone graft material. 1. A method of using an expandable interbody spinal implant , the method comprising: an upper member having an upper surface extending between the leading end and the trailing end, and an upper opening defined in the upper surface;', 'a lower member having a lower surface extending between the leading end and the trailing end, and a lower opening defined in the lower surface, the lower member being pivotally connected to the upper member;', 'a bone graft storage portion provided intermediate the leading end and the trailing end, the bone graft storage portion including a hollow portion configured to be packed with a selected volume of bone growth material and adapted to allow bone growth between two adjacent vertebrae of a spine via the upper and lower openings and the bone graft storage portion, and the bone graft storage portion being non-rotatable and capable of being moved forward from a first position to a second position, the first position being closer to the trailing end than the second position ...
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