Minimally invasive expanding spacer and method
    52.
    发明申请
    Minimally invasive expanding spacer and method 有权
    微创扩张垫片和方法

    公开(公告)号:US20040193158A1

    公开(公告)日:2004-09-30

    申请号:US10817024

    申请日:2004-04-02

    IPC分类号: A61F002/30

    摘要: A minimaly invasive spacer for positioning between vertebral members. The spacer is adjustable between a first orientation having a reduced size to facilitate insertion between the vertebral members. A second orientation has an enlarged size for contacting the vertebral members. The spacer includes linkages that are attached to a pair of plates. A pull arm is operatively connected to the linkages for adjusting the spacer from the first orientation to the second orientation. A delivery device is attached to the spacer for insertion between the vertebral members. In one embodiment, the delivery device is detachable to be removed from the spacer once positioned between the vertebral members. Methods of using the spacer include positioning the spacer between the vertebral members while in the first orientation. The spacer is then enlarged to the second orientation, and the delivery device is removed with only the spacer remaining within the patient.

    摘要翻译: 用于在椎骨构件之间定位的最小侵入间隔物。 间隔件可在具有减小的尺寸的第一取向之间调节以便于椎骨构件之间的插入。 第二方向具有用于接触椎骨构件的放大尺寸。 间隔件包括连接到一对板的连接件。 拉臂可操作地连接到连杆上,用于将间隔件从第一方向调整到第二方向。 递送装置附接到间隔件以插入在椎骨构件之间。 在一个实施例中,输送装置可拆卸,以便一旦定位在椎骨构件之间就被从间隔件移除。 使用间隔物的方法包括在第一方向上将间隔件定位在椎骨构件之间。 然后将间隔物放大到第二取向,并且仅将间隔物留在患者体内,移除输送装置。