Stent configurations
AssigneeSciMed Life Systems, Inc.
InventorsTimothy G. J. Ehr, Graig L. Kveen
Life of this patent
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Abstract
Improved stent configurations exhibiting limited recoil, resistance to compression and improved longitudinal flexibility are disclosed. The stent comprised of a plurality of annular elements aligned to form a cylindrical stent body. The annular elements are comprised of a plurality of open, generally boomerang-shaped segments interconnected top-to-bottom around each of the annular elements. Adjacent annular elements are interconnected by interconnecting element.
Claims20
A stent having a longitudinal axis, a proximal end and a distal end,
- the stent comprised of a plurality of generally tubular first bands, and a plurality of second bands,
- each first band having a proximal end and a distal end, the plurality of first bands including a proximal first band and a distal first band which is distal to the proximal first band,
- each second band having a proximal end and a distal end, the plurality of second bands including a proximal second band and a distal second band which is distal to the proximal second band,
- each first band comprising a plurality of alternating first peaks and first troughs, the first peaks at the distal end of the first band, the first troughs at the proximal end of the first band, the first peaks and first troughs being inclined substantially in a same first direction, each first peak inclined diagonally relative to a longitudinal line on the surface of the stent extending from the first peak,
- each second band comprising a plurality of alternating second peaks and second troughs, the second peaks at the distal end of the second band, the second troughs at the proximal end of the second band, the second peaks and second troughs being inclined substantially in a same second direction, the second direction opposite the first direction, each second peak inclined diagonally relative to a longitudinal line on the surface of the stent extending from the second peak,
- wherein at least some of the first peaks of the proximal first band are connected to and abutting at least some of the second troughs of the proximal second band,
- at least some of the second peaks of the proximal second band are connected to at least some of the first troughs of the distal first band via a plurality of connectors having one or more bends therein, and
- at least some of the first peaks of the distal first band are connected to and abutting at least some of the second troughs of the distal second band.
A stent having a proximal end and a distal end, the stent comprised of a plurality of circumferential first bands of first cells and a plurality of circumferential second bands of second cells, the first bands and the second bands alternating with one another longitudinally along the stent,
- each first cell having a proximal end and a distal end, the proximal end and the distal end oriented in non-parallel diagonal directions relative to a line on the surface of the stent, the line parallel to the longitudinal axis of the stent and extending through the proximal and distal ends, the proximal end joined directly to the distal end in two locations, and
- each second cell having a proximal end and a distal end, the proximal end and the distal end oriented in non-parallel diagonal directions relative to a line on the surface of the stent, the line parallel to the longitudinal axis of the stent and extending through the proximal and distal ends, the proximal end joined indirectly to the distal end via a first connector extending therebetween and a second connector extending therebetween, the first connector having at least one bend therein and the second connector having at least one bend therein.
Dependencies are inferred from the claim text.