Modified scaffolds for peripheral applications
AssigneeAbbott Cardiovascular Systems Inc.
InventorsJohn E. Papp, Mikael Trollsas, Dariush Davalian, Yunbing Wang, Syed Faiyaz Ahmed Hossainy
Life of this patent
Estimating the term…
Abstract
Stent scaffolds that include a polymeric structure or structures bonded to the scaffold and extending along their length are disclosed. The polymeric structure extends across some or all of the gaps in struts along the length of the scaffold. Segmented scaffolds are also disclosed that include two or more axial segments arranged end to end not connected by link struts.
Claims37
A scaffold, comprising:
- two or more radially expandable axial scaffold segments arranged end to end,
- wherein each segment includes 2 or more cylindrical rings composed of undulating struts, and
- wherein adjacent cylindrical rings in the same axial segment comprise one or more link struts connecting the adjacent cylindrical rings.
A scaffold delivery system, comprising:
- a plurality of axial scaffold segments arranged end to end mounted over a cylindrical support, wherein the axial scaffold segments are not connected by link struts.
A scaffold, comprising:
- two or more radially expandable axial scaffold segments arranged end to end,
- wherein each segment includes 2 or more cylindrical rings composed of undulating struts having crests and troughs,
- wherein the axial segments are not connected by struts,
- wherein adjacent cylindrical rings in the same segment are connected by a link struts that have a length less than a ring strut length between a crest and a trough of a ring.
A scaffold comprising:
- a polymeric scaffold composed of a plurality of interconnected struts with gaps in the scaffold between the struts;
- a plurality of elongate polymeric elements bonded to struts of the scaffold extending across the gaps in the scaffold, wherein axes of the elongate polymeric elements have a component along the axis of the scaffold.
A scaffold comprising:
- a polymeric scaffold composed of a plurality of interconnected struts with gaps in the scaffold between the struts;
- a tubular polymeric structure bonded to struts of the scaffold extending across and over at least a portion of the gaps in the scaffold.
The scaffold of claim 34, wherein the polymeric structure is made of a flexible polymer that allows relative axial movement of the adjacent axial segments.
A scaffold, comprising:
- two or more radially expandable axial scaffold segments arranged end to end,
- wherein each segment includes 2 or more cylindrical rings composed of undulating struts connected by linking struts, and
- wherein adjacent cylindrical rings in the same axial segment comprise one or more link struts connecting the adjacent cylindrical rings
- wherein adjacent axial segments are connected by flexible links that allow relative axial movement of axial segments.
Dependencies are inferred from the claim text.