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US 2018/0008438 A1Published application
Thermal processing of polymer scaffolds
AssigneeAbbott Cardiovascular Systems Inc.
InventorsRommel Lumauig, Stephen D. Pacetti, Ni Ding, Joel Harrington, Xiao Ma, James P. Oberhauser, Jill McCoy, Chad J. Abunassar, Senthil Eswaran, Diem Ta
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Abstract
Methods are disclosed including thermally processing a scaffold to increase the radial strength of the scaffold when the scaffold is deployed from a crimped state to a deployed state such as a nominal deployment diameter. The thermal processing may further maintain or increase the expansion capability of the scaffold when expanded beyond the nominal diameter.
Claims13
-19. (canceled)
A method of fabricating a scaffold comprising:
- providing a scaffold in a fabricated state;
- wherein the scaffold has a scaffold pattern including a plurality of undulating rings connected by links and each ring includes crests and bar arms between the crests,
- wherein the crests have angles that decrease when the scaffold is crimped and increase when the scaffold is expanded;
- and
- thermally processing the scaffold from the fabricated state to a processed state, wherein a thickness of the scaffold increases during the thermal processing such that the thickness in the processed state is larger than the thickness in the fabricated state.
2 more elements
Dependencies are inferred from the claim text.