Patent ID: 8016872

Claim:
An expandable roll sock delivery system comprising: an inner tube; an outer tube; an expandable medical device collapsibly disposed over the inner tube and concentrically oriented between the inner tube and the outer tube; a hollow tube of expandable balloon material, including a first balloon material end attached to a distal portion of the outer tube, and a second balloon material end attached to the inner tube, the balloon material extending over an abluminal surface of the device and being substantially disposed within a distal portion of the outer tube in an initial configuration; wherein the balloon material is attached to the inner and outer tube so as to form an expandable roll sock balloon and an inflation lumen, the inflation lumen being delimited by the space between the outer tube, the roll sock balloon, and the inner tube, wherein the inflation lumen is configured for radial expansion of the roll sock balloon following deployment and release of the expandable medical device by retraction of the outer tube or advancement of the inner tube, the balloon material thereby inverting relative to the initial configuration.