Balloon assemblies having controllably variable topographies

A balloon assembly comprising:

• a balloon having a first inflated state and a second inflated state;
• a film template having an outer surface and extending along at least a portion of a working length of the balloon and having an upper distension limit, the film template including at least one aperture;
• a rigid element coupled to an outer surface of the balloon, the rigid element laying across the at least one aperture and substantially flush with an outer surface of the balloon at the first inflated state of the balloon and extending radially outward at the second inflated state,
• wherein the distention limit of the balloon is greater than the upper distension limit of the film template, and
• wherein the balloon outwardly protrudes through the at least one aperture relative to an outer surface of the film template at the second inflated state, the balloon extending the rigid element outwardly in a radial direction as the balloon outwardly protrudes through the at least one aperture relative to the outer surface of the film template.

A balloon assembly comprising:

• a balloon having an inflated state;
• a film template having an outer surface and extending along at least a portion of a working length of the balloon and having an upper distension limit, the film template including at least one aperture;
• an endoprosthes is extending across the at least one aperture of the template along at least a portion of an outer surface of the template, the endoprosthesis including an anchor portion at a first end of the endoprosthesis,
• wherein the distention limit of the balloon is greater than the upper distension limit of the film template,
• wherein the balloon outwardly protrudes through the at least one aperture relative to an outer surface of the film template at the inflated state, the balloon outwardly protruding through the at least one aperture and deploying the anchor portion of the endoprosthesis into a surrounding tissue.