US Patent 8187328 Expandable containment devices and methods

An expandable containment device is provided for use in containing a flowable material. The containment device includes an expandable housing extending along a longitudinal axis and defining an interior region, and including a first housing portion movably engaged with a second housing portion to allow expansion of the housing generally along the longitudinal axis to provide the housing with an axial dimension extending between adjacent bone structures. The containment device further includes an input port in fluid communication with the interior region of the housing and configured to deliver a flowable material into the interior region of the housing.