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US 2014/0228930 A1Published application
Modified scaffolds for peripheral applications
AssigneeAbbott Cardiovascular Systems Inc.
InventorsJohn E. Papp, Mikael Trollsas, Dariush Davalian, Yunbing Wang, Syed Faiyaz Ahmed Hossainy
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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 sruts.
Claims19
1-37. (canceled)
A scaffold, comprising:
- a plurality of unconnected axial scaffold segments,
- wherein an axial segment
- is made from a polymer tube or polymer sheet,
- includes at least four rings forming three pair of adjacent rings, each ring having ring struts forming crests and troughs,
- for each adjacent ring pair the troughs of the one ring are aligned with the crests of the other ring,
- a first plurality of the troughs of the one ring are not connected to the aligned crest of the other ring, and
- a second plurality of the troughs of the one ring are connected to the aligned crests of the other ring by links.
4 more elements
A scaffold, comprising:
- a plurality of unconnected axial scaffold segments,
- wherein an axial segment
- is made from a polymer tube or polymer sheet,
- includes at least four rings forming three pair of adjacent rings, each ring having ring struts forming crests and troughs, wherein an angle between struts forming a crest is between 90 and 95 degrees,
- for each adjacent ring pair the troughs of the one ring are aligned with the crests of the other ring,
- a first plurality of the troughs of the one ring are not connected to the aligned crest of the other ring, and
- a second plurality of the troughs of the one ring are connected to the aligned crests of the other ring by links, wherein a link has a length that is between 10 and 20 percent less than a length of a ring strut.
4 more elements
A scaffold, comprising:
- a plurality of unconnected axial scaffold segments,
- wherein an axial segment
- is made from a polymer tube or polymer sheet,
- includes at least four rings forming three pair of adjacent rings, each ring having ring struts forming crests and troughs,
- for each adjacent ring pair the troughs of the one ring are aligned with the crests of the other ring,
- a first plurality of the troughs of the one ring are not connected to the aligned crest of the other ring, and
- a second plurality of the troughs of the one ring are connected to the aligned crests of the other ring by links, and
- wherein for each ring pair
- a ring portion of the one ring and a ring portion of the other ring extend between a first link and a second link connecting the one ring to the other ring,
- the one ring portion has only three crests and only two troughs,
- the other ring portion has only two crests and only three troughs,
- no crests or troughs are connected to a link for the one ring portion,
- no crest is connected to a link for the other ring portion, and
- only one trough is connected to a link for the other ring portion.
11 more elements
Dependencies are inferred from the claim text.