| 摘要 |
An implant (6610), comprising:
an outer shell (6670) defining a lumen (6658) therein and having a collapsed configuration and an expanded configuration, the outer shell having a longitudinal length along a first direction, the outer shell configured to be percutaneously inserted when in the collapsed configuration, the outer shell having a portion configured to be disposed between adjacent spinous processes when in the expanded configuration; and
an inner core (6672) disposed within the lumen of the outer shell, the inner core configured to substantially maintain a shape of the portion of the outer shell in a second direction substantially transverse to the first direction. |
